{"title":"BUILDING MATERIALS - ALL PRODUCTS","description":"\u003ch2\u003eWelcome to Our Comprehensive Collection of Building Materials Supplies\u003c\/h2\u003e\n\u003cp\u003eDiscover the best selection of building materials supplies at our store. Whether you are a professional contractor or a DIY enthusiast, our extensive range has everything you need for your building projects. We strive to offer high-quality products that meet strict standards, ensuring durability and excellence.\u003c\/p\u003e\n\u003cp\u003eOur variety includes cement, plaster, tile adhesives, primers, and much more. Each product is carefully selected to support your work and bring your construction ideas to life. With competitive prices and reliable delivery, our supplies stand out in the market.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Our Building Materials Supplies?\u003c\/h3\u003e\n\u003cp\u003eWe understand the importance of reliable supplies in construction. Our materials come from trusted manufacturers and are tested for performance. Builders merchants near me often recommend our collection due to its quality and variety.\u003c\/p\u003e\n\u003cp\u003eWe also provide detailed product information and guidance to help you make informed decisions. The availability of in-stock items means you can start your projects without delay. Trust us to deliver what you need promptly and efficiently.\u003c\/p\u003e\n\u003ch2\u003eOur Product Categories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlasters and Adhesives:\u003c\/strong\u003e From top finishes to ready fillers, find products that create strong, lasting surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimers and Sealants:\u003c\/strong\u003e Improve wall adhesion and weather resistance with our selection of primers and silicones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfiles and Accessories:\u003c\/strong\u003e Essential components like ceiling profiles and hangers are in stock to complete your work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreeds and Mortars:\u003c\/strong\u003e Our self-leveling screeds and tile adhesives ensure smooth, sturdy floors and walls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach category supports builders aiming for excellence in every project. Explore all options to match your specific needs and preferences.\u003c\/p\u003e\n\u003ch3\u003eEnhance Your Projects with Trusted Builders Merchants Supplies\u003c\/h3\u003e\n\u003cp\u003eOur collection is ideal for builders merchants who require dependable, quality supplies. Whether managing a large construction site or a small renovation, these building materials supplies help you maintain efficiency and quality.\u003c\/p\u003e\n\u003cp\u003eAdditionally, our products meet safety and environmental regulations, contributing to sustainable building practices. With straightforward ordering and expert support, we simplify your supply process.\u003c\/p\u003e\n\u003ch2\u003eInformative Videos and Images to Guide You\u003c\/h2\u003e\n\u003cp\u003eTo assist your selection, we include helpful videos demonstrating product applications and techniques. Visual guides illustrate the best ways to use plaster, primers, and other materials effectively.\u003c\/p\u003e\n\u003cp\u003eImages of products and completed projects inspire confidence and illustrate real-world results. These resources enable customers to visualize outcomes before purchasing, ensuring satisfaction.\u003c\/p\u003e\n\u003ch3\u003eDetailed Tables and Specifications\u003c\/h3\u003e\n\u003cp\u003eFor precise project planning, tables provide technical details and application rates for each product. This detailed information allows you to calculate quantities accurately and avoid waste.\u003c\/p\u003e\n\u003cp\u003eSpecifications help builders merchants near me and other users ensure compliance with project standards. These tables support your purchasing decisions and project management.\u003c\/p\u003e\n\u003ch2\u003eHow to Get the Most from Our Building Materials Supplies\u003c\/h2\u003e\n\u003cp\u003ePlan your projects by choosing supplies that fit your building requirements. Using the correct products guarantees durability and professional results. Our team is available for advice and to answer any questions regarding selection or application.\u003c\/p\u003e\n\u003cp\u003eWe recommend checking product descriptions carefully and following installation instructions closely. Proper use of supplies extends the lifespan of your work and maximizes performance.\u003c\/p\u003e\n\u003ch3\u003eConvenient Supply Options for Builders and Contractors\u003c\/h3\u003e\n\u003cp\u003eOrder online for fast delivery or visit our physical location. Many builders find ease in purchasing from our wide stock of building materials supplies. Our customer service supports you from order placement to project completion.\u003c\/p\u003e\n\u003cp\u003eCompetitive pricing and flexible payment options make it easy to keep your project within budget. We aim to be your preferred builders merchants partner every time you need supplies.\u003c\/p\u003e\n\u003ch2\u003eExplore Our Collection Today\u003c\/h2\u003e\n\u003cp\u003eBrowse our extensive range to find exactly the building materials supplies you require. Our commitment to quality and service sets us apart in the market. Join many satisfied customers who trust us for their building needs.\u003c\/p\u003e\n\u003cp\u003eStay updated with new arrivals and special offers by subscribing to our newsletter. Whether you are sourcing materials for a small repair or a major construction, we have you covered with reliable supplies and expert support.\u003c\/p\u003e","products":[{"product_id":"ceresit-cx10-foam-adhesive","title":"CERESIT CX10 FOAM ADHESIVE","description":"\u003cdiv class=\"heliux-text__wrapper limited-container apply-margins  customizations__text\" id=\"text-4d1a90f73f\" data-components=\"CopyToClipboard\" data-components-params-copytoclipboard='{\n            \"hoverMessage\": \"\",\n            \"clickMessage\": \"\"\n        }' data-components-params-limittext='{\n            \"useModal\": false, \n            \"XFContentPath\": \"\"\n        }'\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCERESIT CX10 is a versatile polyurethane foam adhesive engineered for bonding aerated concrete, timber, OSB, gypsum board, expanded polystyrene, bituminous membranes, glass, and coated metals. Requires no power source, water, or specialist tools—simply apply and cure. Delivers superior thermal performance compared to conventional cement-based systems. Performs reliably from +5°C in high-humidity conditions. The 850 ml cartridge covers up to 12 m², develops full strength within 2 hours, and suits both interior and exterior applications.\u003c\/p\u003e\n\u003cdiv class=\"linklist__wrapper linklist__wrapper--base linklist1753174757867 accordion__collapsable\" data-components=\"LinkList\" data-components-params-accordion='{\"isCollapsable\": \"true\", \"matchMedia\": \"all\"}'\u003e\n\u003cul class=\"linklist__base accordion__base  heading4\"\u003e\n\u003cli class=\"linklist__item accordion__item\"\u003e\n\u003cdiv class=\"linklist__item-content\"\u003e\n\u003cdiv class=\"linklist__item-main\"\u003e\u003cspan class=\"linklist__text linklist\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400633954679,"sku":null,"price":12.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/ceresit_cx_10-FOAM-ADHESIVE-UNIVERSAL.png?v=1767042400"},{"product_id":"atlas-impregnat-sealer-grout-tiles-1l","title":"ATLAS IMPREGNAT SEALER GROUT\/TILES 1L","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400636838263,"sku":null,"price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/ATLAS-IMPREGNATE-TILES-GROUTS.jpg?v=1767042428"},{"product_id":"hydroband-3g-corner-external","title":"HYDROBAND 3G CORNER EXTERNAL","description":"","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400638083447,"sku":null,"price":2.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas_hydroband_naroznik_zewnetrzny_g_szt_20900684_picture.webp?v=1767042431"},{"product_id":"ceresit-ct17-deep-act-primer-5l","title":"CERESIT CT17 PROFI WALL PRIMER 5L","description":"\u003cp\u003eCeresit CT17 Profi 5 L is a deep-penetrating consolidation primer that soaks into porous masonry, plaster, and screeds to strengthen the surface layer, lock down dust, and regulate moisture absorption — giving every subsequent coat a stable, uniform substrate to bond to. Part of the \u003ca href=\"\/collections\/primers\"\u003eexterior render primer range\u003c\/a\u003e, this 5 L container covers 10–50 m² depending on substrate porosity and operates as the first consolidation stage in Ceresit facade build-ups ahead of insulation adhesives, basecoats, and \u003ca href=\"\/collections\/premium-silicone-render\"\u003ethin-coat silicone render systems\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 id=\"where-ct17-profi-performs-best\"\u003eWhere Ceresit CT17 Profi Performs Best — UK Substrates and System Stages\u003c\/h2\u003e\n\u003cp\u003eCeresit CT17 Profi is a deep-penetrating consolidation primer based on an aqueous dispersion of synthetic resins, formulated to soak into the pore structure of absorbent mineral and gypsum substrates, bind loose aggregate particles, and reduce surface absorbency so the next coat dries at a controlled, uniform rate. The distinctive yellow tint dries to a visible film that confirms every square metre of wall has been primed — missed patches stand out immediately, which removes a common source of callbacks on large facade and multi-room interior jobs.\u003c\/p\u003e\n\u003cp\u003eCT17 Profi handles the full spectrum of UK preparation work: bare brick and blockwork before EWI insulation adhesive, cement and cement-lime plaster before thin-coat render, gypsum and anhydrite screeds (including underfloor heating) before self-levelling compound or tile adhesive, and old paint or putty surfaces before fresh paint or wallpaper. For matching the right primer to each substrate type and render system, the \u003ca href=\"\/blogs\/news\/best-primer-for-silicone-render\"\u003esilicone render primer comparison guide\u003c\/a\u003e sets out the full decision matrix for UK projects.\u003c\/p\u003e\n\u003ch2 id=\"why-trade-specifiers-choose-ct17-profi\"\u003eWhy Trade Specifiers Choose Ceresit CT17 Profi\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniform Drying Across Patchy Substrates:\u003c\/strong\u003e The primer evens out absorption differences between old patching, new blockwork, and mixed-masonry sections on the same wall, so the render, paint, or adhesive above it dries at the same speed everywhere — eliminating the colour banding and map-cracking that occur when suction varies across the elevation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15-Minute Tile-Ready Window on Cement Substrates:\u003c\/strong\u003e Ceramic tile adhesive can be spread just 15 minutes after priming on cement and cement-lime substrates, so the consolidation step adds almost no time to a tiling programme.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Yellow Coverage Tint:\u003c\/strong\u003e The dried film carries a distinctive yellow colour that makes missed patches and thin spots obvious before the next coat goes on, providing a no-equipment quality check on every elevation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust-Binding Surface Strengthening:\u003c\/strong\u003e Synthetic resin penetrates the substrate and physically binds loose aggregate particles together, transforming a dusty or friable surface into a stable foundation that holds adhesives and basecoats reliably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolvent-Free, Very Low Emission Formulation:\u003c\/strong\u003e The water-based formula is classified by Henkel as very low emission with minimal odour during application, making it suitable for occupied homes, schools, and care buildings without specialist ventilation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDilutable 1:1 for Extreme Porosity:\u003c\/strong\u003e Heavily absorbent or deteriorated substrates take a diluted first pass for maximum penetration depth followed by an undiluted second coat wet-on-wet, reaching deeper than any single full-strength application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor and Outdoor Versatility:\u003c\/strong\u003e One primer handles walls, floors, and ceilings before ceramic tiles, self-levelling compounds, wallpaper, putty, paint, render, and thermal insulation adhesives — covering the full spectrum of interior renovation and exterior facade preparation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"technical-specifications\"\u003eTechnical Specifications — Ceresit CT17 Profi Data Sheet Highlights\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDeep-penetrating consolidation primer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003eAqueous dispersion of synthetic resins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e~1.0 kg\/l\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConsumption Rate\u003c\/td\u003e\n\u003ctd\u003e0.1–0.5 l\/m² (substrate-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage (5 L container)\u003c\/td\u003e\n\u003ctd\u003e10–50 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Time (general — render, paint, plaster)\u003c\/td\u003e\n\u003ctd\u003e~2 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Time (tiles on cement \/ cement-lime)\u003c\/td\u003e\n\u003ctd\u003e~15 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Temperature\u003c\/td\u003e\n\u003ctd\u003e+5 °C to +25 °C (substrate and ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Relative Humidity\u003c\/td\u003e\n\u003ctd\u003e80 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Method\u003c\/td\u003e\n\u003ctd\u003eBrush or roller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilution\u003c\/td\u003e\n\u003ctd\u003eReady to use; dilutable 1:1 with water for high-porosity substrates or pre-paint priming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour (Wet\/Dried)\u003c\/td\u003e\n\u003ctd\u003eYellow (coverage-control tint)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVapour Permeability\u003c\/td\u003e\n\u003ctd\u003eVapour-permeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVOC \/ Emissions\u003c\/td\u003e\n\u003ctd\u003eSolvent-free; very low emission (Henkel classification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e5 L plastic container (1 L, 2 L, 10 L also available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e12 months from production date (sealed, frost-free storage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Substrates\u003c\/td\u003e\n\u003ctd\u003eConcrete, cement\/lime plasters, gypsum, anhydrite, aerated concrete, screeds (incl. underfloor heating), V100 chipboard, non-impregnated plasterboard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Next Coats\u003c\/td\u003e\n\u003ctd\u003eTile adhesives, self-levelling compounds, renders, paints, putties, wallpaper paste, EPS and mineral wool adhesives\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eHenkel AG (Ceresit), Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 id=\"how-to-apply-ct17-profi\"\u003eHow to Apply Ceresit CT17 Profi — Substrate Prep, Roller Technique, and System Sequencing\u003c\/h2\u003e\n\u003cp\u003eCeresit CT17 Profi goes onto a dry, structurally sound substrate free from dust, oil, grease, bitumen, and loose paint, applied as a single undiluted coat by brush or roller between +5 °C and +25 °C at relative humidity below 80 %. On gypsum, anhydrite, and old paint coats, sand the surface lightly with coarse paper and vacuum thoroughly before priming so the resin binds to a clean, sound layer. The yellow tint confirms full coverage in real time, so a quick visual sweep of each elevation under good light replaces any guesswork about missed patches.\u003c\/p\u003e\n\u003cp\u003eOn standard-absorbency concrete, block, or plaster, a single undiluted coat at approximately 0.2 l\/m² is enough — the yellow film tells you the wall is sealed and ready for the next stage. High-porosity or loose substrates take a two-pass treatment: dilute 1:1 with clean water for the first coat to maximise penetration depth, then apply a second undiluted coat wet-on-wet (before the first coat dries fully) for full surface consolidation. Before ceramic tiling on cement substrates, allow just 15 minutes; before renders, paints, and EPS or mineral wool adhesive, allow the full 2-hour drying window under standard conditions. Detailed substrate-assessment and preparation sequences for every common UK wall type are covered in the \u003ca href=\"\/blogs\/news\/substrate-preparation-before-rendering-uk\"\u003ecomplete substrate preparation method guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 id=\"installation-notes\"\u003eInstallation Notes — System Sequence, Quartz Topcoat, and Site Conditions\u003c\/h2\u003e\n\u003cp\u003eOn a Ceresit EWI build-up, CT17 Profi consolidates the bare masonry before the insulation adhesive stage, then a cementitious basecoat with embedded fibreglass mesh forms the reinforcing layer, then a quartz topcoat primer provides the mechanical key, and finally a CT74 or CT76 silicone render delivers the decorative finish. The quartz topcoat sits on the cured basecoat — not on CT17 — so the two products work at different system stages rather than substituting for each other. The \u003ca href=\"\/products\/ceresit-ct16-quartz-primer-10l\"\u003eCeresit CT16 Quartz Primer 10 L\u003c\/a\u003e is the matched grip coat in this sequence, and the \u003ca href=\"\/blogs\/news\/quartz-primer-application-uk-professional-2026-guide-for-ewi-systems\"\u003equartz primer application guide\u003c\/a\u003e sets out the full pre-render priming method.\u003c\/p\u003e\n\u003cp\u003eCheck substrate temperature with an infrared thermometer on shaded and north-facing elevations rather than relying on the ambient air reading alone, as surface temperature can sit several degrees below air temperature on cool mornings. Clean brushes and rollers with water immediately after use, before the resin cures permanently into tool fibres. Store the container sealed and upright at temperatures above +5 °C — frozen primer cannot be recovered by thawing, so winter storage in an unheated site container or overnight in a van needs a frost-protected arrangement.\u003c\/p\u003e\n\u003ch2 id=\"pro-tips-ct17-profi\"\u003ePro Tips From UK Installers Using Ceresit CT17 Profi\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the yellow tint as a coverage check:\u003c\/strong\u003e Walk each elevation under good light after priming and look for any non-yellow patches before the next coat goes on — this is a free QA pass that catches every missed area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplash-test before ordering volume:\u003c\/strong\u003e Pour a small amount of water onto a representative section of wall; if it disappears in under 30 seconds, plan for 0.5 l\/m² consumption rather than 0.2 l\/m² when calculating canister quantities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrime EWI substrates before adhesive every time:\u003c\/strong\u003e The small material cost of a consolidation coat is a fraction of the cost of revisiting a board that did not bond fully to a dusty masonry surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSchedule tiling primer in the first 15 minutes:\u003c\/strong\u003e On cement substrates, the 15-minute tile-ready window means you can prime first thing and start the mixer before the priming pass is fully dry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDilute only when the substrate genuinely needs it:\u003c\/strong\u003e Standard-absorbency walls perform best with the product as supplied; diluting unnecessarily reduces resin concentration and weakens consolidation, so reserve the 1:1 dilution for visibly loose or deteriorated masonry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"is-ct17-profi-right-for-your-project\"\u003eIs Ceresit CT17 Profi Right for Your Project?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes — for dusty, porous, or mixed-absorbency substrates before adhesives, renders, paints, or flooring compounds:\u003c\/strong\u003e The deep-penetrating formula stabilises the surface layer and evens out suction, the yellow tint provides visible proof of coverage, and the 15-minute tile-ready window keeps tiling and facade projects on schedule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed a higher-coverage pack for a full-house or multi-elevation programme?\u003c\/strong\u003e The same CT17 Profi formula is available in a 10 L container that covers up to 100 m² on standard substrates, reducing per-litre cost and avoiding mid-project reordering on perimeter jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrefer a no-drip gel for overhead and ceiling work?\u003c\/strong\u003e The \u003ca href=\"\/products\/atlas-nkp-primer-5kg\"\u003eAtlas NKP Primer 5 kg\u003c\/a\u003e is a colloidal gel alternative that holds on the roller during soffit and ceiling priming where CT17's liquid form is more prone to dripping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLooking for the quartz grip coat that goes on top of the cured basecoat?\u003c\/strong\u003e CT17 Profi is the consolidation stage, not the render grip coat — the \u003ca href=\"\/products\/ceresit-ct16-quartz-primer-10l\"\u003eCeresit CT16 Quartz Primer 10 L\u003c\/a\u003e deposits sand-textured aggregate onto the cured basecoat to give the render its mechanical bond.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"faq-ct17-profi\"\u003eFAQ — Ceresit CT17 Profi Coverage, Compatibility, and Application\u003c\/h2\u003e\n\u003ch3 id=\"faq-coverage\"\u003eHow much wall area does the 5 L container cover?\u003c\/h3\u003e\n\u003cp\u003eCoverage depends on substrate porosity. On standard-absorbency concrete or blockwork, the 5 L container covers approximately 25–50 m² at a consumption rate of 0.1–0.2 l\/m². On highly porous masonry, old crumbly plaster, or aerated concrete blocks, consumption rises to around 0.5 l\/m², reducing coverage to approximately 10 m². A quick splash test confirms the rate for your specific wall: pour a small amount of water on the surface and watch how fast it is absorbed — under 30 seconds indicates high porosity, so plan for the upper consumption figure when ordering.\u003c\/p\u003e\n\u003ch3 id=\"faq-underfloor-heating\"\u003eCan I use CT17 Profi on floors with underfloor heating?\u003c\/h3\u003e\n\u003cp\u003eCT17 Profi is specifically listed for use on screeds with underfloor heating, making it the correct consolidation step before self-levelling compounds or tile adhesive in heated-floor projects. The primer film is vapour-permeable, so it does not trap residual moisture in the screed, and the 2-hour drying time under standard conditions adds minimal delay to the flooring programme. Commission the heating system and allow the screed to fully cure before priming, as residual moisture rising through an uncured screed can affect primer film formation.\u003c\/p\u003e\n\u003ch3 id=\"faq-occupied-buildings\"\u003eIs CT17 Profi safe for use in occupied buildings?\u003c\/h3\u003e\n\u003cp\u003eThe water-based, solvent-free formulation is classified by Henkel as very low emission, producing minimal odour during application and no harmful fumes during curing, so it suits priming in occupied homes, schools, hospitals, and care buildings without specialist extraction or protective equipment. The film dries to a stable, vapour-permeable layer within approximately 2 hours, after which it is chemically inert. Tools and any accidental splashes clean up with water while the product is still wet, and fully cured residue can be disposed of as standard construction waste.\u003c\/p\u003e\n\u003ch3 id=\"faq-vs-ct16\"\u003eWhat is the difference between CT17 Profi and CT16 Quartz Primer?\u003c\/h3\u003e\n\u003cp\u003eThe two products perform different jobs at different stages of the render system. CT17 Profi is a deep-penetrating consolidator that soaks into the bare masonry to bind dust, strengthen the surface, and regulate absorbency before the insulation adhesive or basecoat stage. CT16 is a quartz-aggregate grip coat that sits on top of the cured basecoat and deposits a rough, sand-textured surface that the decorative render physically holds onto. On a Ceresit EWI build-up, CT17 goes onto the bare wall before insulation bonding and CT16 goes onto the cured reinforcement basecoat before the render topcoat — together they form the complete priming sequence for the system. The full primer-by-stage selection is covered in the \u003ca href=\"\/blogs\/news\/best-primer-for-silicone-render\"\u003eprimer selection guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 id=\"faq-dilution\"\u003eWhen should I dilute CT17 Profi 1:1 with water?\u003c\/h3\u003e\n\u003cp\u003eDilute in two specific situations: when the substrate is very absorbent or loose (a diluted first pass penetrates deeper into the pore structure), and when priming before painting (a lighter consolidation layer that does not affect paint adhesion or sheen). After a diluted first coat, always follow with an undiluted second coat applied wet-on-wet, before the first coat dries fully, to seal the surface completely. On standard-absorbency substrates in good condition, use the product undiluted as supplied — diluting unnecessarily reduces resin concentration in the film and weakens the consolidation effect.\u003c\/p\u003e\n\u003ch3 id=\"faq-shelf-life\"\u003eWhat is the shelf life and storage requirement?\u003c\/h3\u003e\n\u003cp\u003eCeresit CT17 Profi carries a 12-month shelf life from production date when stored sealed and upright in the original container at temperatures above +5 °C and below +25 °C, protected from frost and direct sunlight. Frozen primer cannot be recovered by thawing — the resin dispersion breaks down irreversibly — so winter storage on unheated sites or in vans overnight needs a frost-protected arrangement above +5 °C.\u003c\/p\u003e\n\u003ch2 id=\"technical-documentation\"\u003eTechnical Documentation — Ceresit CT17 Profi TDS and Manufacturer Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/datasheets.tdx.henkel.com\/CERESIT-CT-17-en_GL.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCeresit CT17 Profi Technical Data Sheet (PDF, Henkel)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.ceresit.uk\/innovations\/invisible-power.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCeresit CT17 product page (manufacturer, UK)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400639132023,"sku":null,"price":21.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERESIT-CT17-PROFI-PRIMER-WALL.jpg?v=1767042443"},{"product_id":"atlas-silton-silicone-118-jasmine-280ml","title":"ATLAS SILTON SILICONE 118 JASMINE 280ml","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400641229175,"sku":null,"price":7.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/ATLAS-SILICONE-SILTON_39d312f4-e8a5-4ebc-aa8d-821267c4c5c9.jpg?v=1767042484"},{"product_id":"atlas-silton-silicone-211-cement-280ml","title":"ATLAS SILTON SILICONE 211 CEMENT 280ml","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400641622391,"sku":null,"price":7.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/ATLAS-SILICONE-SILTON_ea7dde0c-fe6b-4cab-ba8e-952bd9e612b5.jpg?v=1767042486"},{"product_id":"ud27-ceiling-profile-4m","title":"UD27 CEILING PROFILE 4M","description":"\u003ch1\u003eUD27 CEILING PROFILE 4M\u003c\/h1\u003e","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400641786231,"sku":null,"price":5.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/UD27-CEILING-PROFILE.webp?v=1767042488"},{"product_id":"ceramic-grout-1-20mm-001-white-5kg","title":"CERAMIC GROUT (1-20mm) 001 WHITE 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400642048375,"sku":null,"price":14.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-WHITE-001.png?v=1767042493"},{"product_id":"ceramic-grout-1-20mm-118-jasmine-5kg","title":"CERAMIC GROUT (1-20mm) 118 JASMINE 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400642277751,"sku":null,"price":14.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-JASMINE-118.png?v=1767042495"},{"product_id":"ceramic-grout-1-20mm-202-ash-5kg","title":"CERAMIC GROUT (1-20mm) 202 ASH 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400642638199,"sku":null,"price":14.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-ASH-202.png?v=1767042496"},{"product_id":"ceramic-grout-1-20mm-204-black-5kg","title":"CERAMIC GROUT (1-20mm) 204 BLACK 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400645423479,"sku":null,"price":14.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-BLACK-204_cbf6b9c7-9927-4917-bc59-870612e1cbb6.png?v=1767042498"},{"product_id":"ceramic-grout-1-20mm-211-cement-5kg","title":"CERAMIC GROUT (1-20mm) 211 CEMENT 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400645783927,"sku":null,"price":14.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-CEMENT-211.png?v=1767042500"},{"product_id":"ceramic-grout-1-20mm-035-grey-5kg","title":"CERAMIC GROUT (1-20mm) 035 GREY 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400646013303,"sku":null,"price":14.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-GREY-035.png?v=1767042503"},{"product_id":"ceramic-grout-1-20mm-136-silver-5kg","title":"CERAMIC GROUT (1-20mm) 136 SILVER 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400646504823,"sku":null,"price":14.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-SILVER-136.png?v=1767042506"},{"product_id":"ceramic-grout-1-20mm-037-graphite-5kg","title":"CERAMIC GROUT (1-20mm) 037 GRAPHITE 5kg","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400646865271,"sku":null,"price":14.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/CERAMIC-GROUT-5KG-GRAPHITE-037.png?v=1767042509"},{"product_id":"atlas-atut-adhesive-for-tiles-grey-25kg","title":"ATLAS ATUT ADHESIVE FOR TILES GREY 25KG","description":"\u003cp\u003e\u003cb\u003eATLAS ATUT\u003c\/b\u003e\u003cspan\u003e is a general-use C1T adhesive for tiles for simple tiling works on standard substrates. Wide range of bed depth 2-10 mm allows for cladding fixing on uneven surfaces and for levelling of mineral surfaces. It can be successfully used for local tile replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eATLAS ATUT is produced as a dry mixture of the highest quality cement binder, aggregates and specially selected modifying agents. Thanks to its improved formulation, the product provides:\u003c\/li\u003e\n\u003cli\u003ewide range of adhesive layer thicknesses (2-10 mm),\u003c\/li\u003e\n\u003cli\u003eand therefore allows thin-layer adhesion of the cladding even on uneven substrates and makes it possible to level mineral substrates,\u003c\/li\u003e\n\u003cli\u003edecreased run-off - making it possible to install ceramics \"from the top down\" and avoids cutting tiles on the exposed wall surface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003ethickness of the applied layer: 2 - 10 mm\u003c\/li\u003e\n\u003cli\u003eapplication temperature: from +5 ° C to +25 ° C\u003c\/li\u003e\n\u003cli\u003epot time: approx. 4 hours\u003c\/li\u003e\n\u003cli\u003egrouting: after 24 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-icon\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.atlas.com.pl\/wp-content\/uploads\/2024\/07\/download-1.png\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eTechnical documentation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-technical-documentation__inner\"\u003e\n\u003cdiv class=\"row align-items-center\"\u003e\n\u003cdiv class=\"col-12 mb-2 mb-lg-4\"\u003eHere you will find product-related documents and other files for download:\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_10340_20211209_074650.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eDeclaration of Performance\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_11043_20250203_085026.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eSafety Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_9567_20240715_110706.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eTechnical Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_14141_20240509_142557.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eUKCA\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400647160183,"sku":null,"price":11.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas-atut-TILE-ADHESIVE-CHEAP.jpg?v=1767479828"},{"product_id":"atlas-plus-adhesive-grey-foil-25kg","title":"ATLAS PLUS ADHESIVE GREY FOIL 25KG","description":"\u003cp\u003e\u003cb\u003eThe formulation of the new ATLAS PLUS adhesive uses the ATLAS POLYMER TECHNOLOGY.\u003c\/b\u003e\u003cspan\u003e Thanks to the high content of polymer compounds, the cementitious adhesive obtains unique properties, making it a product with the highest technical and performance parameters, assuring long term durability.\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eThe use of the POLYMER TECHNOLOGY in ATLAS PLUS gives the following benefits:\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003e• durable and strong bonding of the cladding to difficult and non-absorbent substrates,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• safe to use at temperatures as low as 1 °C - thanks to the setting accelerators, the use of the new ATLAS PLUS adhesive allows the cladding to be walked on after 24 hours, even when installed in insufficiently heated rooms in autumn to spring.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• possibility of use on substrates exposed to high deformation and vibration,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• high resistance to extreme operating loads - mechanical and thermal,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• excellent bonding to all types of cladding,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• safe to use for all tile formats, including tiles with a surface up to 5 m2 large,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• excellent working parameters and rheology.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eATLAS DOUBLE FIBRES TECHNOLOGY is based on a mix of polypropylene and cellulose fibres.\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003eThe polypropylene fibres used in the ATLAS DOUBLE FIBRES TECHNOLOGY are a material with very high chemical resistance to acids, alkalis and solvents or salts. They are hydrophobic, practically non-absorbent, and therefore resistant to microbiological attack. The fibres improve the mechanical properties of the mortar. The cellulose fibres become elastic and ductile under water after. They increase their volume and allow the free transport of water along the fibres, thus having a significant effect on the working properties of the mortar.\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eThe DOUBLE FIBRES TECHNOLOGY in ATLAS PLUS offers the following benefits:\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003e• improvement of strength parametres,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• a significant improvement of resistance to high operational loads, impacts and vibrations,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• safe fixing at large temperature differences,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• compensation of stress occurring on deforming substrates,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• improvement of water retention in the mortar: fibers reduce the result of sudden water retention both on joint with absorbable substrate and absorbable tile as well as within the evaporation zone; during adhesive binding and drying (particularly when applied with maximum coat) the fibers accumulate and transport water and keep its uniform level within the whole coat,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• limitation of the effect of tile “sinking”\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• significant improvement of workability\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• improvement of tiles stability just after fixing to the substrate.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-icon\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.atlas.com.pl\/wp-content\/uploads\/2024\/07\/download-1.png\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eTechnical documentation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-technical-documentation__inner\"\u003e\n\u003cdiv class=\"row align-items-center\"\u003e\n\u003cdiv class=\"col-12 mb-2 mb-lg-4\"\u003eHere you will find product-related documents and other files for download:\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_10745_20220317_095737.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eDeclaration of Performance\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_11053_20250203_094538.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eSafety Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_9557_20240207_113402.pdf?_gl=1*kg804q*_gcl_au*MTM3Mjc0MTE0MS4xNzY4NDcwNzc4*_ga*MTU0MTQxNTY1OS4xNzY4NDcwNzc3*_ga_0K0YXK32FZ*czE3Njg2NTgxMjgkbzckZzEkdDE3Njg2NTkyMDkkajUxJGwwJGgw\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eTechnical Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_14160_20240510_123858.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eUKCA\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400647422327,"sku":null,"price":18.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas-plus-tile-adhesive.jpg?v=1767479835"},{"product_id":"self-levelling-screed-sms30","title":"ATLAS SMS30 SELF LEVELLING SCREED 25KG","description":"\u003ch1 class=\"single-product__title new-header-1\"\u003eAtlas SMS30 Self Levelling Screed\u003c\/h1\u003e\n\u003cp\u003eATLAS SMS 30 is a rapid-set, self levelling screed cement-based product designed to correct floor irregularities ranging from 3 to 30 mm across various substrates. Its outstanding flow properties remove the need for guide strips, delivering consistently flat surfaces without manual patching. This versatile product is ideal for living areas, offices, bathrooms, and commercial environments alike. It bonds exceptionally well with concrete, cement, and anhydrite subfloors, including those incorporating underfloor heating screed solutions.\u003c\/p\u003e\n\u003cp\u003eThis product offers fast foot traffic readiness within just 3 hours and a compressive strength of ≥30 N\/mm². Shrinkage is minimal (≤0.6 mm\/m), drastically lowering crack risks. The durable screed floor accepts tiles, vinyl, carpet, laminate, parquet, and epoxy finishes. It works well with both manual and machine application using auger pumps, meeting the demands of residential and commercial projects requiring precision and efficiency.\u003c\/p\u003e\n\u003ch2\u003eBenefits of Using Self Levelling Screed\u003c\/h2\u003e\n\u003cp\u003eThe Atlas SMS30 excels in providing a perfectly flat screed floor that supports many floor coverings. Its rapid-setting formula quickly levels floors while keeping strength and adhesion intact, which reduces the necessity for costly repairs. This screed also improves the efficiency of underfloor heating screed systems, contributing to significant energy savings in buildings.\u003c\/p\u003e\n\u003cp\u003eBy enhancing heat transfer and maintaining overall floor stability, the product increases comfort and cost-effectiveness in spaces featuring underfloor heating. Its superior flow and bonding properties make it a top choice for those seeking reliable floor screeding near me or managing commercial site projects.\u003c\/p\u003e\n\u003ch3\u003eApplication Areas and Compatibility of Floor Levelling Screed\u003c\/h3\u003e\n\u003cp\u003eThis self levelling floor screed performs effectively on various substrates, making it suitable for new construction and renovation projects alike. It provides a durable base for multiple flooring surfaces and offers excellent compatibility with concrete screed, cement, and anhydrite. The screed floor created is strong and ready to accept finishes like tile, carpet, or vinyl.\u003c\/p\u003e\n\u003cp\u003eThe product also works well with liquid screed mixtures, offering flexibility to meet different on-site requirements. Because of its versatile nature, Atlas SMS30 seamlessly fits into diverse workflows and enhances the final install’s quality and durability.\u003c\/p\u003e\n\u003ch3\u003eMixing and Application Process for Optimal Screeding\u003c\/h3\u003e\n\u003cp\u003eProper floor screeding start-up is essential for the best results. Atlas SMS30 is delivered as a ready mixed screed needing only added water before use. The resulting mixture is smooth, easy to pour, and facilitates efficient floor levelling tasks with minimal effort.\u003c\/p\u003e\n\u003cp\u003eIts fast-setting nature ensures quick job completion, saving overall construction time. Professionals value this product’s reliability for floor screeding near me services, especially when deadlines are tight or projects are large.\u003c\/p\u003e\n\u003ch3\u003ePerformance Characteristics and Strength of the Self Levelling Screed\u003c\/h3\u003e\n\u003cp\u003eThe compressive strength of Atlas SMS30 exceeds 30 N\/mm², ensuring the long-term durability of the screed floor under various loads. This strength supports structural integrity under heavy foot traffic and mechanical stress. Thanks to its low shrinkage, chances of cracks forming are greatly reduced, extending the screed layer’s useful life.\u003c\/p\u003e\n\u003cp\u003eAdditionally, this floor levelling screed optimizes underfloor heating screed systems’ efficiency by enabling fast heat transfer while maintaining floor stability. It balances flexibility and hardness to give a superior finish compatible with many flooring options, from laminate to epoxy coatings.\u003c\/p\u003e\n\u003ch2\u003eConsiderations Before Choosing This Floor Levelling Screed\u003c\/h2\u003e\n\u003cp\u003eChoosing the right floor levelling screed matters for long-term success and avoiding costly repairs. Atlas SMS30 stands out for its ease of use and dependable performance. When evaluating self levelling screed price, assessing value against quality is key to ensuring durability.\u003c\/p\u003e\n\u003cp\u003eThe product’s compatibility with machine application provides faster, more consistent results, essential for large commercial projects. For customers needing lightweight or reinforced screeds, Atlas SMS30 offers adaptable options to meet diverse project specifications.\u003c\/p\u003e\n\u003ch3\u003eEnvironmental and Safety Aspects of Atlas SMS30\u003c\/h3\u003e\n\u003cp\u003eThis self levelling screed meets modern environmental standards and is safe for on-site use. Its quick hardening and curing speed transitions to later building stages, minimizing dust and wet surface exposure. Correct mixing and application minimize material waste, promoting sustainable building practices.\u003c\/p\u003e\n\u003cp\u003eUsing Atlas SMS30 helps builders pursue green construction certifications by prioritizing durability, efficiency, and environmental responsibility in projects.\u003c\/p\u003e\n\u003ch2\u003eSummary of Atlas SMS30 Self Levelling Screed Features\u003c\/h2\u003e\n\u003cp\u003eWith its fast setting, durability, and versatility, Atlas SMS30 creates level, smooth screed floors ideal for modern construction. Suitable for residential and commercial spaces, this self levelling screed forms a strong bond to substrates and integrates well with underfloor heating screed systems.\u003c\/p\u003e\n\u003cp\u003eThe product’s superior performance reduces post-installation problems like cracks and uneven surfaces. It is a highly recommended option for floor screeding near me searches or professional applications in concrete screed and liquid screed projects.\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-12 col-lg-7 mt-5 mt-lg-0\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400648110455,"sku":null,"price":15.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas-sms-30-SELF-LEVELING-SCREED.jpg?v=1767037695"},{"product_id":"b-d-pdf_28280-pointing-float250x100mm","title":"B\/D PDF_28280 GROUTING TROWEL 250X100mm","description":"\u003cp\u003eBlue Dolphin Grouting Trowel. Dimensions: 250x100 mm. For finishing and renovation work. High-quality material.\u003c\/p\u003e","brand":"BLUE DOLPHIN","offers":[{"title":"Default Title","offer_id":56400648634743,"sku":null,"price":3.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/Paca-do-fugowania-plytek-DOLPHIN-HOBBY-250-95mm-28280.jpg?v=1768426151"},{"product_id":"atlas-gipsar-uni-white-filler-20kg","title":"ATLAS GIPSAR UNI WHITE FILLER 20KG","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400653058423,"sku":null,"price":12.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/gipsar-uni-WHITE-GYPSUM-PLASTER.jpg?v=1767042534"},{"product_id":"atlas-uni-grunt-ultra-4kg","title":"ATLAS UNI-GRUNT ULTRA CONCENTRATE PRIMER 4KG","description":"\u003cp\u003eAtlas Uni-Grunt Ultra 4 kg is a high-yield deep-penetrating concentrate priming emulsion for absorbent UK substrates, covering up to 280 m² (rendering, 1:6 dilution) or 360 m² (painting, 1:8 dilution) from a single container — the highest material economy in the \u003ca href=\"\/collections\/primers\"\u003erender primer range\u003c\/a\u003e. The polymer-dispersion concentrate carries a control pigment that tints the substrate during application for visible coverage confirmation, and consolidates bare masonry ahead of quartz topcoat primers and \u003ca href=\"\/collections\/premium-silicone-render\"\u003ethin-coat silicone render systems\u003c\/a\u003e on full-house facade jobs where material cost per square metre matters.\u003c\/p\u003e\n\u003ch2 id=\"where-uni-grunt-ultra-performs-best\"\u003eWhere Atlas Uni-Grunt Ultra Performs Best — Large-Area UK Projects and Adjustable Dilution\u003c\/h2\u003e\n\u003cp\u003eAtlas Uni-Grunt Ultra solves the problem that limits standard ready-to-use primers on large UK facade jobs: material cost per square metre. The 4 kg concentrate dilutes to three task-specific ratios — 1:3 for screeds and self-levelling compounds (≈53 m²), 1:6 for renders, plasters, and tile adhesives (≈280 m²), and 1:8 for paint and wallpaper preparation (≈360 m²) — so one container handles every priming task on a building from basement floor to final exterior coat. The high polymer-dispersion content drives the emulsion deep into the pore structure of bare brick, blockwork, aerated concrete, and cured EWI basecoats, binding loose aggregate grains and reducing absorbency so the next coat dries at a controlled, uniform rate.\u003c\/p\u003e\n\u003cp\u003eThe integrated control pigment tints the substrate as the primer is applied, showing coverage progress in real time and disappearing under subsequent layers without affecting topcoat colour. Within the PRIMER-SUBSTRATE selection framework, Uni-Grunt Ultra sits as the consolidator that precedes a quartz grip coat (Cerplast or CT16) before thin-coat render application. The \u003ca href=\"\/blogs\/news\/best-primer-for-silicone-render\"\u003esilicone render primer comparison guide\u003c\/a\u003e sets out the full decision matrix; complete substrate-assessment and porosity-checking sequences are covered in the \u003ca href=\"\/blogs\/news\/substrate-preparation-before-rendering-uk\"\u003esubstrate preparation method guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 id=\"why-trade-specifiers-choose-uni-grunt-ultra\"\u003eWhy Trade Specifiers Choose Atlas Uni-Grunt Ultra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighest Coverage Per Container in the Range:\u003c\/strong\u003e Up to 360 m² at the 1:8 dilution and 280 m² at the 1:6 dilution from a single 4 kg pack — the most cost-effective consolidation primer for full-house and multi-elevation programmes where material economy directly affects project margin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Coverage Confirmation via Control Pigment:\u003c\/strong\u003e The integrated pigment tints the substrate during application so missed patches show immediately under good light, then disappears under subsequent layers without reducing topcoat covering power — a no-equipment QA pass on every elevation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Task-Specific Dilution Ratios:\u003c\/strong\u003e 1:3 for screeds and self-levelling compounds, 1:6 for renders and tile adhesives, 1:8 for paint preparation — one product replaces three different primer SKUs on jobs that span flooring, rendering, and decoration in the same building.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15-Minute Next-Coat Window on Standard Masonry:\u003c\/strong\u003e Plasters, adhesives, and render basecoats can follow just 15 minutes after priming on standard masonry, keeping tight UK programmes on schedule and reducing scaffold-hire days on multi-storey work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Polymer Penetration for Substrate Reinforcement:\u003c\/strong\u003e The high polymer-dispersion content carries the emulsion into the pore structure and bonds loose aggregate from within, producing a consolidated layer that resists dusting and holds every subsequent coat firmly in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolvent-Free, Indoor and Outdoor:\u003c\/strong\u003e Water-based formulation with no hazardous classifications, certified for walls, floors, and ceilings on both interior and exterior substrates within a +5 °C to +30 °C working window covering the full UK rendering season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible With Atlas ETICS System Sequence:\u003c\/strong\u003e Consolidates bare masonry before the quartz grip coat in Atlas certified facade build-ups, supporting BBA and ETA system warranty when followed by Atlas Cerplast and an Atlas thin-coat render.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"technical-specifications\"\u003eTechnical Specifications — Atlas Uni-Grunt Ultra Data Sheet Highlights\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDeep-penetrating concentrate priming emulsion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBinder\u003c\/td\u003e\n\u003ctd\u003eAqueous polymer resin dispersion (high polymer content)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e~1.0 g\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e4 kg plastic container\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConsumption\u003c\/td\u003e\n\u003ctd\u003e0.022–0.075 kg\/m² (varies with dilution and substrate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilution — Screeds \/ Self-Levelling Floors\u003c\/td\u003e\n\u003ctd\u003e1:3 with water (≈53 m² per 4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilution — Renders \/ Plasters \/ Tile Adhesives\u003c\/td\u003e\n\u003ctd\u003e1:6 with water (≈280 m² per 4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilution — Painting \/ Wallpapering\u003c\/td\u003e\n\u003ctd\u003e1:8 with water (≈360 m² per 4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Time — Standard Masonry\u003c\/td\u003e\n\u003ctd\u003e~15 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Time — Self-Levelling Floors\u003c\/td\u003e\n\u003ctd\u003e~2 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Temperature\u003c\/td\u003e\n\u003ctd\u003e+5 °C to +30 °C (substrate and ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Pigment\u003c\/td\u003e\n\u003ctd\u003eYes — tints substrate to show coverage; disappears under topcoat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolvent Content\u003c\/td\u003e\n\u003ctd\u003eNone (solvent-free, water-based)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Method\u003c\/td\u003e\n\u003ctd\u003eRoller, brush, or airless spray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eIndoor and outdoor; walls, floors, and ceilings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e12 months from production date (sealed, frost-free storage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Conditions\u003c\/td\u003e\n\u003ctd\u003eSealed container, +5 °C to +25 °C; protect from frost and direct sunlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAtlas Sp. z o.o.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 id=\"how-to-apply-uni-grunt-ultra\"\u003eHow to Apply Atlas Uni-Grunt Ultra — Dilution Mixing, Substrate Prep, and Coverage Verification\u003c\/h2\u003e\n\u003cp\u003eMatch the dilution ratio to the task before mixing: 1:3 with clean water for screeds and self-levelling compounds, 1:6 for renders and tile adhesives, 1:8 for paint and wallpaper preparation. Measure water by volume into a clean bucket first, then add the concentrate to the water (not the reverse), stirring continuously to prevent the polymer settling at the bottom and producing inconsistent concentration across the batch. Apply the diluted emulsion as a single even coat with a roller, brush, or airless sprayer between +5 °C and +30 °C on a clean, dry, structurally sound substrate free from dust, oil, and loose material.\u003c\/p\u003e\n\u003cp\u003eWork methodically across the surface in overlapping passes — the control pigment shows untreated areas as a lighter colour, so a quick visual scan from scaffold level confirms full coverage before the next coat goes on. Complete each elevation in a single continuous session rather than stopping mid-wall, because a partially dried lap line creates a visible absorption difference that can show through the finished topcoat as a faint band. On aerated concrete blocks and other very high-suction substrates, the first pass absorbs almost instantly; a second coat after 15 minutes doubles the consolidation depth and gives the quartz primer a perfectly consistent base to grip.\u003c\/p\u003e\n\u003ch2 id=\"installation-notes\"\u003eInstallation Notes — Atlas EWI System Sequence and Weather Planning\u003c\/h2\u003e\n\u003cp\u003eOn a full Atlas ETICS build-up, Uni-Grunt Ultra (1:6 dilution) consolidates bare masonry before EPS or mineral wool boards bond with system adhesive; a cementitious basecoat with embedded fibreglass mesh forms the reinforcing layer; \u003ca href=\"\/products\/cerplast-quartz-primer-white-25kg-75m2\"\u003eAtlas Cerplast\u003c\/a\u003e deposits the quartz grip coat on the cured basecoat; and an Atlas silicone, acrylic-silicone, mineral, or mosaic topcoat completes the facade. Allow the full 15-minute drying window on standard masonry before the next coat; extend to 30 minutes on cool or humid UK days for the most reliable consolidation depth. Check substrate temperature with an infrared thermometer on shaded and north-facing elevations rather than relying on the air reading alone — surface temperature can sit several degrees below the ambient figure on cool mornings.\u003c\/p\u003e\n\u003cp\u003eFor self-levelling compounds and screeds at the 1:3 dilution, allow the full 2-hour drying window before pouring the screed; the higher polymer concentration needs the extra time to bond loose aggregate before taking the load of fresh compound. Check a 48-hour weather forecast before outdoor application to ensure no rain falls during the drying window — uncured primer washed from the wall by rain leaves the substrate inconsistently consolidated. Clean tools with water immediately after use; once the polymer dries on roller fibres or brush bristles, it bonds permanently. Store unused concentrate sealed and upright at +5 °C to +25 °C, protected from frost; frozen emulsion separates irreversibly.\u003c\/p\u003e\n\u003ch2 id=\"pro-tips-uni-grunt-ultra\"\u003ePro Tips From UK Installers Using Atlas Uni-Grunt Ultra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStick to the 1:6 ratio for rendering work:\u003c\/strong\u003e The weaker 1:8 mix is designed for paint preparation only — using it before render reduces consolidation depth below the threshold the quartz topcoat needs to bond reliably, so reserve 1:8 strictly for decoration prep.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater in first, concentrate second:\u003c\/strong\u003e Pour measured water into the bucket first, then add the concentrate while stirring; the reverse order lets polymer pool at the bottom and produces patchy concentration across the working batch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecond pass on aerated block at 15 minutes:\u003c\/strong\u003e Very high-suction aerated concrete absorbs the first coat almost instantly; a second pass at the standard 15-minute mark doubles the consolidation depth where the substrate would otherwise stay under-primed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrust the pigment on multi-operative teams:\u003c\/strong\u003e On large elevations where several installers are priming simultaneously, a visual scan from scaffold level confirms every section has been covered before the quartz coat goes on, eliminating the callback risk of a missed strip showing through as a drying-speed difference in the finished render.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMix in batches that match the working window:\u003c\/strong\u003e Diluted emulsion stays workable for the day but loses its peak penetration after the first 4–6 hours; mixing the volume needed for each session rather than a full container at once delivers the deepest consolidation on every elevation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"is-uni-grunt-ultra-right-for-your-project\"\u003eIs Atlas Uni-Grunt Ultra Right for Your Project?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes — for large-area absorbent substrate priming where material economy matters:\u003c\/strong\u003e Full domestic facades, multi-room interiors, commercial floors, and multi-elevation programmes where the per-square-metre cost from a 4 kg concentrate beats every ready-to-use alternative in the range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrefer ready-to-use without on-site mixing?\u003c\/strong\u003e The \u003ca href=\"\/products\/atlas-uni-grunt-10kg-100m2\"\u003eAtlas Uni-Grunt 10 kg\u003c\/a\u003e uses the same polymer-dispersion technology in a pre-mixed format that requires no water addition — slower per-square-metre coverage but faster to deploy on smaller jobs or sites where precise mixing is impractical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking on smooth, non-absorbent surfaces?\u003c\/strong\u003e Deep-penetrating primers rely on substrate porosity to carry the polymer into the masonry; on terrazzo, ceramic tiles, OSB, smooth poured concrete, or steel, \u003ca href=\"\/products\/atlas-ultragrunt-5kg-0-3kg-1m2\"\u003eAtlas Ultragrunt 5 kg\u003c\/a\u003e deposits coarse quartz aggregate onto the surface to create a physical mechanical key instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed a quartz grip coat for the EWI basecoat stage?\u003c\/strong\u003e Uni-Grunt Ultra consolidates the bare wall; \u003ca href=\"\/products\/cerplast-quartz-primer-white-25kg-75m2\"\u003eAtlas Cerplast 25 kg\u003c\/a\u003e provides the textured quartz key on the cured basecoat before the render topcoat — the two products work at different system stages and complement each other on the same build-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"faq-uni-grunt-ultra\"\u003eFAQ — Atlas Uni-Grunt Ultra Coverage, Dilution, and Compatibility\u003c\/h2\u003e\n\u003ch3 id=\"faq-coverage\"\u003eHow much area does one 4 kg container cover?\u003c\/h3\u003e\n\u003cp\u003eCoverage depends on the dilution ratio matched to the task. At the 1:3 dilution for floor preparation before self-levelling compounds, one container covers approximately 53 m². At the 1:6 dilution for render, plaster, and adhesive preparation, coverage rises to approximately 280 m². At the 1:8 dilution for painting and wallpapering, one container stretches to approximately 360 m². On highly absorbent substrates such as old aerated concrete blocks, the first coat absorbs quickly and a second pass is recommended — which roughly halves the effective coverage per container, so ordering two containers for a 250 m² aerated-block facade at 1:6 dilution is a practical precaution.\u003c\/p\u003e\n\u003ch3 id=\"faq-render-dilution\"\u003eWhich dilution ratio should I use for rendering over EWI?\u003c\/h3\u003e\n\u003cp\u003eFor priming bare masonry or a cured EWI basecoat before applying a quartz topcoat primer and then silicone render, the 1:6 dilution is the standard specification within Atlas certified facade systems. This ratio delivers enough polymer concentration to consolidate the substrate and regulate absorption, ensuring the quartz coat bonds to a stable, evenly absorbent surface that gives the finished topcoat a uniform colour and texture across the full elevation. Sticking to the 1:6 ratio for render preparation is a step worth getting right — the weaker 1:8 mix is designed for paint preparation only, where the demands on consolidation depth are lower.\u003c\/p\u003e\n\u003ch3 id=\"faq-outdoor-uk\"\u003eCan Atlas Uni-Grunt Ultra be used outdoors in UK weather?\u003c\/h3\u003e\n\u003cp\u003eUni-Grunt Ultra is certified for both indoor and outdoor use on walls, floors, and ceilings, with a +5 °C to +30 °C application window covering the standard UK rendering season. Apply in stable, dry conditions and confirm the substrate temperature with an infrared thermometer rather than relying on the air reading alone — north-facing masonry can sit several degrees below the ambient temperature, particularly in spring and autumn when mornings are cool. Checking a 48-hour weather forecast before outdoor application avoids the risk of rain washing uncured primer from the wall.\u003c\/p\u003e\n\u003ch3 id=\"faq-vs-standard-uni-grunt\"\u003eWhat is the difference between Atlas Uni-Grunt Ultra and standard Atlas Uni-Grunt?\u003c\/h3\u003e\n\u003cp\u003eBoth products are deep-penetrating consolidation primers based on aqueous polymer-resin dispersion, but Uni-Grunt Ultra is a concentrate that must be diluted with water before use, while standard Uni-Grunt is supplied ready to use (or dilutable at 1:1 or 1:3). The concentrate format gives Uni-Grunt Ultra a significantly higher yield per container — up to 360 m² from a single 4 kg pack compared to approximately 100 m² from a 10 kg pack of standard Uni-Grunt at full-strength application. The Ultra also includes a control pigment that tints the substrate during application, making coverage progress visible at a glance — a feature the standard version does not offer. For large projects where material economy matters most, the Ultra concentrate is the more cost-effective choice; for smaller jobs or quick single-room preparation, the ready-to-use Uni-Grunt saves the mixing step. The full primer selection across pack formats is covered in the \u003ca href=\"\/blogs\/news\/best-primer-for-silicone-render\"\u003eprimer selection guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 id=\"faq-vs-ultragrunt\"\u003eIs Atlas Uni-Grunt Ultra the same as Atlas Ultragrunt?\u003c\/h3\u003e\n\u003cp\u003eThe two products have similar names but solve opposite substrate problems. Atlas Uni-Grunt Ultra is a deep-penetrating liquid concentrate that soaks into porous, dusty, or high-suction masonry to consolidate the pore structure and regulate absorption. Atlas Ultragrunt is a quartz-aggregate priming mass for the opposite case — smooth, non-absorbent surfaces such as terrazzo, ceramic tiles, OSB, or steel, where there is no porosity for a liquid primer to exploit, so a coarse aggregate is deposited onto the surface to create a mechanical key. On mixed-substrate projects with both porous and non-absorbent areas, both products may be needed to give the entire wall a consistent bonding surface before the topcoat.\u003c\/p\u003e\n\u003ch3 id=\"faq-occupied-buildings\"\u003eIs Atlas Uni-Grunt Ultra safe to use on occupied buildings?\u003c\/h3\u003e\n\u003cp\u003eUni-Grunt Ultra is a water-based, solvent-free formulation that produces minimal odour during application and releases no harmful fumes during curing, so it suits work on occupied homes, schools, and care buildings without specialist ventilation or protective equipment beyond standard construction site practice. Once fully dried, the cured primer film is inert and vapour-permeable — walls continue to breathe naturally rather than trapping moisture — and leftover hardened residue disposes of as standard construction waste without specialist handling.\u003c\/p\u003e\n\u003ch2 id=\"technical-documentation\"\u003eTechnical Documentation — Atlas Uni-Grunt Ultra TDS and Manufacturer Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_11630_20240613_145608.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAtlas Uni-Grunt Ultra Technical Data Sheet (PDF, manufacturer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.atlas.com.pl\/en\/product\/atlas-uni-grunt-ultra-651-2239\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAtlas Uni-Grunt Ultra product page (manufacturer, English)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400653812087,"sku":null,"price":13.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas-uni-grunt-ultra-PRIMER.jpg?v=1767042545"},{"product_id":"atlas-geoflex-express-grey-25kg","title":"ATLAS GEOFLEX EXPRESS GREY 25KG","description":"\u003cp\u003e\u003cb\u003eATLAS GEOFLEX EXPRESS adhesive formulation uses the innovative technology of silicate gel in combination with fast-setting cement.\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003eThis makes it possible to obtain:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cb\u003every rapid pre-setting,\u003c\/b\u003e\u003cspan\u003e eliminating the possibility of building salts building up under the tiles and in their structure,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• rapid increases in adhesion and strength.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSilicate gel has a unique ability to bind water. Accumulation of a part of the mixing water ensures complete cement hydration, regardless of the type of the tiles. Thanks to appropriate water management, which is necessary to complete the setting process, the gel adhesive ensures full adhesion to substrates of various absorbency levels.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eThe use of silicate gel technology in combination with fast-setting cement offers the following benefits:\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003e• can be grouted after just 2 hours for rapid repair work,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• the possibility of bonding any type of cladding, both absorbent and non-absorbent,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• it is possible to optimally adapt the consistency of the adhesive to the individual preferences of the contractor and the needs of the application specific application, by dosing water over a much wider range than with traditional adhesives,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• achieving a full spread of adhesive under the panels, which improves the adhesion and durability of the fixing, especially in external applications,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• safe bonding of coverings on substrates exposed to direct sunlight (as long as the temperature does not exceed the permissible value), both during the tiling work and during the setting of the adhesive mortar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eATLAS GEOFLEX EXPRESS is manufactured as a dry mix of top quality cement binder, aggregates and special natural and synthetic modifiers.\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRapid setting\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e– use of rapid setting cement in the adhesive formula allows for rapid increase of adhesion and strength, especially during the initial setting (first 2-3 hours after tiles installation). This ability enables to foot traffic and grouting just after 2 hours after tiles installation. The adhesive is recommended also for quick repairs of the floor (e.g. on balcony, terrace etc.)\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eThe wide range of adhesive layer thicknesses (2-15 mm) allows:\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e- thin-coat cladding installation on even substrates, - thin-coat cladding installation on uneven substrates, preceded by substrate floating, - thick-coat cladding installation on uneven substrates, with no need for substrate floating\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNo cladding slip\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e- enables installation of the cladding from top to bottom with no need of support at the fixing stage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNo shrinkage of the adhesive underneath the tile\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e– no subsidence of the tiles during setting – works can be continued after a break with no risk of level difference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eResistant to changing atmospheric conditions\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e– allows for quick and safe works in various atmospheric conditions. Rapid strength gain by the adhesive limits possibility of damaging cladding during installation outside of the building.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePackaging:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlastic bags - 25 kg\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-icon\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.atlas.com.pl\/wp-content\/uploads\/2024\/07\/download-1.png\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eTechnical documentation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-technical-documentation__inner\"\u003e\n\u003cdiv class=\"row align-items-center\"\u003e\n\u003cdiv class=\"col-12 mb-2 mb-lg-4\"\u003eHere you will find product-related documents and other files for download:\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_9973_20240821_132907.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eDeclaration of Performance\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_10836_20250203_090249.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eSafety Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_11616_20240206_150709.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eTechnical Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_15372_20250828_090408.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eCERTIFICATE\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400654270839,"sku":null,"price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas-geoflex-express-tile-adhesive.jpg?v=1767479996"},{"product_id":"atlas-geoflex-grey-25kg","title":"ATLAS GEOFLEX GREY 25KG","description":"\u003cp\u003e\u003cb\u003eATLAS GEOFLEX adhesive formulation uses the innovative technology of silicate gel.\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eThe silicate gel has the unique ability to bind water. The gel fills the pores formed at the stage of adhesive setting through the network of inorganic bonds. Accumulation of a part of the mixing water ensures complete cement hydration, regardless of the type of the tiles. Thanks to appropriate water management, which is necessary to complete the setting process, the gel adhesive ensures full adhesion to substrates of various absorbency levels.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eThe use of silicate gel technology offers the following benefits:\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003e• the possibility of bonding any type of cladding, both absorbent and non-absorbent,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• it is possible to optimally adapt the consistency of the adhesive to the individual preferences of the contractor and the needs of the application specific application, by dosing water over a much wider range than with traditional adhesives,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• achieving a full spread of adhesive under the panels, which improves the adhesion and durability of the fixing, especially in external applications,\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• safe bonding of coverings on substrates exposed to direct sunlight, both during tiling work and while the adhesive mortar is setting (e.g. on balconies, terraces, etc.).\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable class=\"product_desc_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eMixing (water\/dry mix)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003e6.5 - 8.25 l \/ 25 kg\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eMin.\/max. bed depth\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003e2 mm \/ 15 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eOpen time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003emin. 30 minutes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eWalk on\/grout\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003eafter 12 hours\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003ePackaging\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlastic bags: 25 kg\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-icon\"\u003e\u003cimg src=\"https:\/\/www.atlas.com.pl\/wp-content\/uploads\/2024\/07\/download-1.png\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eTechnical documentation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-technical-documentation__inner\"\u003e\n\u003cdiv class=\"row align-items-center\"\u003e\n\u003cdiv class=\"col-12 mb-2 mb-lg-4\"\u003eHere you will find product-related documents and other files for download:\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_9972_20241105_134804.pdf\" class=\"tab-technical-documentation__file\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eDeclaration of Performance\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_11045_20250203_090002.pdf\" class=\"tab-technical-documentation__file\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eSafety Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_12187_20240821_115545.pdf?_gl=1*1uaiee0*_gcl_au*MTM3Mjc0MTE0MS4xNzY4NDcwNzc4*_ga*MTU0MTQxNTY1OS4xNzY4NDcwNzc3*_ga_0K0YXK32FZ*czE3Njg2NTgxMjgkbzckZzEkdDE3Njg2NTg2NTYkajUxJGwwJGgw\" class=\"tab-technical-documentation__file\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eTechnical Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_13072_20240510_112913.pdf\" class=\"tab-technical-documentation__file\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eUKCA\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_15371_20250828_090335.pdf\" class=\"tab-technical-documentation__file\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eCERTIFICATE\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400654696823,"sku":null,"price":17.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/atlas-geoflex-tile-adhesive-gel.png?v=1767042550"},{"product_id":"atlas-geoflex-white-25kg","title":"ATLAS GEOFLEX WHITE 25KG","description":"\u003cdiv class=\"tab-description product-tabs__tab\" id=\"tab-description\" data-tab=\"tab-description\"\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eProduct description\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-description__inner\"\u003e\n\u003cdiv class=\"new-list\" itemprop=\"description\"\u003e\n\u003cb\u003eATLAS GEOFLEX WHITE\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eis a white C2TE adhesive for tiles for internal and external application on wall and floor.\u003cbr\u003e\u003cbr\u003eIdeal for\u003cspan\u003e \u003c\/span\u003e\u003cb\u003enatural stone, porcelain and glass mosaic.\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eWide range of bed thickness\u003cspan\u003e \u003c\/span\u003e\u003cb\u003efrom 2 up to 15 mm.\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNo slip from the wall\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e– cladding can be installed from the top of the wall with no additional support.\u003cbr\u003e\u003cbr\u003eWalking on and grouting\u003cspan\u003e \u003c\/span\u003e\u003cb\u003ejust after 12 hours\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e– owing to accelerated proces of adhesive setting and drying.nder, aggregates and selected modifying agents.\u003cbr\u003e\u003cbr\u003eFor application in temperature\u003cspan\u003e \u003c\/span\u003e\u003cb\u003efrom 5°C up to 35°C.\u003c\/b\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-default product-tabs__tab\" id=\"tab-gel-technology\" data-tab=\"tab-gel-technology\"\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-icon\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"29\" height=\"29\" viewbox=\"0 0 29 29\" fill=\"none\"\u003e\u003cpath d=\"M23.1754 8.61819L18.0942 3.41451C17.4745 2.79503 16.607 2.42333 15.6156 2.42333H8.30359C6.4446 2.29943 4.8335 3.9101 4.8335 5.76856V23.1142C4.8335 24.9726 6.32068 26.5833 8.30359 26.5833H20.6967C22.5558 26.5833 24.1668 25.0966 24.1668 23.1142V10.9722C24.1668 10.105 23.795 9.23768 23.1754 8.61819ZM10.7822 12.2113H14.5002C14.9959 12.2113 15.4916 12.5829 15.4916 13.2025C15.4916 13.8218 15.1198 14.1935 14.5002 14.1935H10.7822C10.2865 14.1935 9.79076 13.8218 9.79076 13.2025C9.79076 12.5829 10.2865 12.2113 10.7822 12.2113ZM18.2181 19.1495H10.7822C10.2865 19.1495 9.79076 18.7778 9.79076 18.1583C9.79076 17.5388 10.1626 17.1671 10.7822 17.1671H18.2181C18.7139 17.1671 19.2095 17.5388 19.2095 18.1583C19.2095 18.7778 18.7139 19.1495 18.2181 19.1495Z\" fill=\"#264185\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eGel technology\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-default__inner\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cp\u003eThe unique gel technology used in ATLAS GEOFLEX WHITE brings the following advantages:\u003cbr\u003e\u003cbr\u003e• adhesive is suitable for any type of cladding: natural stone, glass mosaic, ceramic, porcelain,\u003cbr\u003e\u003cbr\u003e• consistency of adhesive can be adjusted to individual preferences of the tiler and needs of specific job – mixing ratio is much wider than in case of traditional adhesives,\u003cbr\u003e\u003cbr\u003e• bed depth up to 15 mm – substrate levelling and tiling at once,\u003cbr\u003e\u003cbr\u003e• full spread under the tile with higher mixing ratio – ensured adhesion and durable bond, which is relevant for exterior use,\u003cbr\u003e\u003cbr\u003e• safe cladding installation on surfaces exposed to direct sunlight – during fixing cladding, as well as during mortar setting (e.g. on balcony, terrace).\u003c\/p\u003e\n\u003ctable class=\"product_desc_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eMixing (water\/dry mix)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003e6.5 - 8.25 l \/ 25 kg\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eMin.\/max. bed depth\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003e2 mm \/ 15 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eOpen time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003emin. 30 minutes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"198\"\u003e\n\u003cp\u003eWalk on\/grout\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"208\"\u003e\n\u003cp\u003eafter 12 hours\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"product-tabs__tab-header\"\u003e\n\u003cdiv class=\"product-tabs__tab-icon\"\u003e\u003cimg alt=\"\" src=\"https:\/\/www.atlas.com.pl\/wp-content\/uploads\/2024\/07\/download-1.png\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-title\"\u003eTechnical documentation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-tabs__tab-content\"\u003e\n\u003cdiv class=\"tab-technical-documentation__inner\"\u003e\n\u003cdiv class=\"row align-items-center\"\u003e\n\u003cdiv class=\"col-12 mb-2 mb-lg-4\"\u003eHere you will find product-related documents and other files for download:\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_12169_20240826_114318.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eDeclaration of Performance\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_11044_20250203_090057.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eSafety Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_9553_20240202_111611.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eTechnical Data Sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_12139_20240510_112958.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eUKCA\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-12 col-lg-6 mb-2\"\u003e\u003ca class=\"tab-technical-documentation__file\" href=\"https:\/\/baza.atlas.com.pl\/pliki\/pl_15373_20250828_090500.pdf\" target=\"_blank\"\u003e\n\u003cdiv class=\"tab-technical-documentation__icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cspan class=\"tab-technical-documentation__filename\"\u003eCERTIFICATE\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":56400655057271,"sku":null,"price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/tile-adhesive-atlas-geoflex-white-25kg.jpg?v=1767042552"},{"product_id":"s-b-02-northern-ash-2-5m","title":"S\/B 02 NORTHERN ASH 2.5m","description":"\u003cp\u003e\u003cspan\u003eWOOD STRUCTURE – structure embossed on the strip, perfectly imitating the real wood\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e4 WAY SYSTEM – solid, fast, simple assembly and disassembly, for any type of wall.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWOOD EFFECT – the ideal colour and design match, 100% accurate representation of wooden colors\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFLEXIBLE – Flexible adaptation to uneven walls\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eEASY WALL RENOVATION – possibility of unfixing skirtings in order to paint or hide TV or audio cable (max 230V)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eECO FRIENDLY PVC – the board made of environmentally friendly material\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eLONGER FIXING ENDS for accessories and longer wall mounts keep the strip and the accessories in place\u003c\/span\u003e\u003c\/p\u003e","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400661807479,"sku":null,"price":7.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/INDO_02_JESION_POLNOCNY-500x500-1.webp?v=1767480054"},{"product_id":"s-b-02-northern-ash-connector","title":"S\/B 02 NORTHERN ASH CONNECTOR","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400662266231,"sku":null,"price":1.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/INDO_L_2-500x500-1.webp?v=1767480061"},{"product_id":"s-b-02-northern-ash-inner-corner","title":"S\/B 02 NORTHERN ASH INNER CORNER","description":"","brand":"Renders World","offers":[{"title":"Default Title","offer_id":56400662495607,"sku":null,"price":1.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/1375\/1415\/files\/INDO_NW_2-500x500-1.webp?v=1767480063"},{"product_id":"cerplast-quartz-primer-white-25kg-75m2","title":"CERPLAST QUARTZ TOP COAT PRIMER WHITE 25KG - 75m2","description":"\u003cp\u003eAtlas Cerplast 25 kg is a BBA-certified quartz-aggregate priming mass that creates the mechanical key between your cured basecoat and decorative render topcoat, achieving ≥1.0 MPa adhesion to concrete and covering approximately 75 m² per bucket at 0.3 kg\/m². Stocked in the wider \u003ca href=\"\/collections\/primers\"\u003eexterior render primer range\u003c\/a\u003e, this trade-sized pack is sized for full-house facade jobs ahead of Atlas thin-coat \u003ca href=\"\/collections\/premium-silicone-render\"\u003esilicone render systems\u003c\/a\u003e on EPS, XPS, mineral wool, and traditional masonry substrates.\u003c\/p\u003e\n\u003ch2 id=\"where-cerplast-performs-best\"\u003eWhere Atlas Cerplast 25 kg Performs Best — UK ETICS Systems and Substrates\u003c\/h2\u003e\n\u003cp\u003eAtlas Cerplast 25 kg sits at the grip-coat stage of a certified Atlas ETICS build-up — applied to the cured reinforcement basecoat and to traditional masonry surfaces before the decorative render topcoat, where its acrylic resin and fine quartz aggregate deposit a rough, sand-textured film that the wet render physically holds onto rather than relying on chemical adhesion alone. The same primer works on poured concrete, cement and lime plasters, brick and block masonry, plasterboard, and cured EWI basecoats over EPS, XPS, or mineral wool insulation, so one product covers virtually every wall type on UK new-build and renovation programmes.\u003c\/p\u003e\n\u003cp\u003eThe 75 m² coverage from a single 25 kg bucket suits full-house and multi-elevation jobs where stopping to reorder mid-project would lose a day on the scaffold. Atlas Cerplast holds BBA Certificate 13\/5018 (Atlas ETICS system) and ETA 06\/0081, giving developers and Building Control documented evidence that every layer of the facade build-up is part of a tested, certified assembly. For the detailed pre-render priming method, the \u003ca href=\"\/blogs\/news\/quartz-primer-application-uk-professional-2026-guide-for-ewi-systems\"\u003equartz primer application guide\u003c\/a\u003e sets out tool selection and weather planning for UK conditions.\u003c\/p\u003e\n\u003ch2 id=\"why-trade-specifiers-choose-cerplast\"\u003eWhy Trade Specifiers Choose Atlas Cerplast 25 kg\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Mechanical Grip (≥1.0 MPa to Concrete):\u003c\/strong\u003e Fine quartz aggregate deposits a rough, sand-textured surface that gives the decorative render a physical bond exceeding 1.0 MPa on concrete, independently verified under ETA 06\/0081 — so the topcoat stays locked through freeze-thaw cycles, thermal movement, and decades of UK weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-House Coverage in One Bucket:\u003c\/strong\u003e Each 25 kg bucket covers approximately 75 m² at 0.3 kg\/m², enough for a typical three-bedroom semi-detached elevation in a single container — fewer mid-job reorders and simpler quantity planning on larger schemes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBBA + ETA Certified System Compliance:\u003c\/strong\u003e Listed under BBA Certificate 13\/5018 and ETA 06\/0081 within the Atlas ETICS insulation system, so every layer from substrate to topcoat carries documented approval for Building Control, warranty providers, and architect specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Colour Accuracy via SAH Tinting:\u003c\/strong\u003e The white base accepts tinting to up to 400 shades through the SAH colour system, allowing the primer to be matched to the chosen render topcoat — masking the basecoat tone and preventing show-through on pastel and mid-tone finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-Day Workflow (4–6 Hour Drying):\u003c\/strong\u003e A 4–6 hour drying window at +5 °C to +30 °C lets you prime in the morning and render the same afternoon, keeping the scaffold-hire programme on schedule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSix-Month Weather Protection if Project Pauses:\u003c\/strong\u003e The cured primer film forms a temporary weather barrier that protects the primed facade for up to six months between priming and rendering — useful when bad weather or trade-sequencing delays the topcoat stage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Substrate Compatibility:\u003c\/strong\u003e Performs on concrete, cement and lime plasters, brick and block masonry, plasterboard, and EWI basecoats over EPS, XPS, or mineral wool — one product covers the full preparation spectrum on UK projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"technical-specifications\"\u003eTechnical Specifications — Atlas Cerplast Data Sheet Highlights\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eQuartz-aggregate priming mass (ready-to-use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003eAcrylic resin + fine quartz aggregate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e~1.5 g\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdhesion to Concrete\u003c\/td\u003e\n\u003ctd\u003e≥1.0 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage Rate\u003c\/td\u003e\n\u003ctd\u003e~0.3 kg\/m² (75 m² per 25 kg bucket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Time\u003c\/td\u003e\n\u003ctd\u003e4–6 hours (standard conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Temperature\u003c\/td\u003e\n\u003ctd\u003e+5 °C to +30 °C (substrate and ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Method\u003c\/td\u003e\n\u003ctd\u003eRoller, brush, or airless spray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eWhite (tintable to up to 400 shades via SAH system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e25 kg plastic bucket (15 kg pack also available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBBA Certificate\u003c\/td\u003e\n\u003ctd\u003e13\/5018 (Atlas ETICS system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eETA\u003c\/td\u003e\n\u003ctd\u003e06\/0081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNSAI Certificate\u003c\/td\u003e\n\u003ctd\u003e10\/0347\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e12 months from production date (sealed, frost-free storage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Conditions\u003c\/td\u003e\n\u003ctd\u003eSealed container, +5 °C to +25 °C; protect from frost and direct sunlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Topcoats\u003c\/td\u003e\n\u003ctd\u003eAtlas silicone, acrylic-silicone, mineral, silicone-silicate, mosaic DEKO M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Substrates\u003c\/td\u003e\n\u003ctd\u003eConcrete, cement\/lime plasters, brick\/block masonry, plasterboard, cured EWI basecoats (EPS, XPS, mineral wool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAtlas Sp. z o.o.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 id=\"how-to-apply-cerplast\"\u003eHow to Apply Atlas Cerplast — Substrate Prep, Roller Technique, and System Sequencing\u003c\/h2\u003e\n\u003cp\u003eAtlas Cerplast performs at full specification when applied to a clean, stable substrate free from dust, loose material, oil, and efflorescence between +5 °C and +30 °C — the quartz aggregate needs direct contact with a sound surface to develop its ≥1.0 MPa bond. New cement plasters need a minimum curing time of one week per centimetre of thickness; poured concrete needs at least 28 days. On dusty or highly absorbent masonry, a consolidation pass with \u003ca href=\"\/products\/atlas-uni-grunt-5kg-50m2\"\u003eAtlas Uni-Grunt\u003c\/a\u003e stabilises the pore structure before the Cerplast coat goes on, so the quartz primer sits on a uniform surface rather than soaking unevenly into porous areas.\u003c\/p\u003e\n\u003cp\u003eStir the bucket thoroughly with a low-speed drill and clean paddle for 2–3 minutes before use to redistribute settled aggregate, then apply a single even coat with a medium-nap roller (18–25 mm pile) on flat elevations, a wide masonry brush for reveals and detailing, or an airless sprayer with an abrasive-rated tip on large commercial facades. Work in sections no wider than one scaffold lift to maintain a wet edge and avoid lap marks. Allow the full 4–6 hour drying window before the render topcoat; on cool or humid UK days, extending the wait to a full overnight dry gives the topcoat the best foundation. Atlas Cerplast is supplied ready to use — never dilute, never add other materials, and never apply over a damp or contaminated surface.\u003c\/p\u003e\n\u003ch2 id=\"installation-notes\"\u003eInstallation Notes — Site Conditions, Drying Window, and Atlas System Sequence\u003c\/h2\u003e\n\u003cp\u003ePrime the entire elevation before moving on rather than working in patches, because uniform priming across the full wall equalises suction and prevents drying-speed differences that can appear as colour banding in the finished topcoat. Start on the shaded side of the building and follow the shade around rather than applying in direct sunlight, which can skin the surface before the aggregate has bedded in. Check substrate temperature with an infrared thermometer on shaded and north-facing elevations rather than relying on the air reading alone — surface temperature can sit several degrees below the ambient figure on cool mornings.\u003c\/p\u003e\n\u003cp\u003eOn a full Atlas ETICS build-up, Cerplast follows the cured reinforcement basecoat and precedes the decorative render — Atlas Uni-Grunt consolidates the bare masonry first, EPS or mineral wool boards bond with a system adhesive, a cementitious basecoat with embedded fibreglass mesh forms the reinforcing layer, then Cerplast deposits the quartz key, and finally an Atlas silicone, acrylic-silicone, mineral, or mosaic topcoat completes the facade. Clean tools with water immediately after use, before the resin cures permanently onto roller fibres and brush bristles. Store unused product sealed in its original container at +5 °C to +25 °C, protected from frost — frozen primer cannot be recovered by thawing.\u003c\/p\u003e\n\u003ch2 id=\"pro-tips-cerplast\"\u003ePro Tips From UK Installers Using Atlas Cerplast\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTint to the topcoat shade on every project:\u003c\/strong\u003e Even mid-tone greys can flash the white primer through at the thinnest points of a 1.5 mm grain texture, so SAH-tinting the Cerplast to match the render shade is worth the small extra step on every job, not just on light colours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-hatch roller pattern:\u003c\/strong\u003e Apply with a long-pile roller in a deliberate cross-hatch pass — horizontal first, then vertical — to distribute the quartz aggregate more evenly than a single-direction roll, giving the topcoat noticeably more consistent grip across the elevation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecant in summer heat:\u003c\/strong\u003e On days above +25 °C, keep the main bucket in the shade and decant into a smaller tray every half hour to maintain a consistent working consistency from first roller stroke to last.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan two buckets for a full-perimeter job:\u003c\/strong\u003e One 25 kg bucket covers front and rear elevations of a typical semi-detached property with material to spare; two buckets give comfortable coverage including gable ends and reveals without rationing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse IR temperature check on shaded walls:\u003c\/strong\u003e A surface thermometer reading on north and east elevations catches the times when the wall is still below +5 °C even though the air has warmed up, preventing application below the temperature window.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"is-cerplast-right-for-your-project\"\u003eIs Atlas Cerplast 25 kg Right for Your Project?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes — for full-house Atlas ETICS facades and multi-elevation jobs:\u003c\/strong\u003e The 75 m² coverage per bucket keeps the work moving without mid-project reordering, the BBA + ETA certification satisfies Building Control and warranty providers, and the SAH-tintable white base masks the basecoat under any topcoat shade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed a smaller quantity for a single elevation or patch repair?\u003c\/strong\u003e The \u003ca href=\"\/products\/cerplast-quartz-primer-white-15kg-45m2\"\u003eCerplast 15 kg bucket covering 45 m²\u003c\/a\u003e uses the identical formulation in a mid-size pack, so you get the same adhesion, drying time, and tintability without over-ordering on smaller jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecifying a Ceresit render system instead?\u003c\/strong\u003e The certified quartz primer for CT74, CT76, and CT174 topcoats is the \u003ca href=\"\/products\/ceresit-ct16-quartz-primer-10l\"\u003eCeresit CT16 Quartz Primer 10 L\u003c\/a\u003e — keeping every layer within the same approved system gives the strongest warranty position and the simplest Building Control documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking on dusty or deteriorated masonry first?\u003c\/strong\u003e Apply \u003ca href=\"\/products\/atlas-uni-grunt-5kg-50m2\"\u003eAtlas Uni-Grunt 5 kg\u003c\/a\u003e as the consolidation pass before Cerplast — the two-coat sequence adds less than £1 per m² and significantly improves bond reliability across mixed or weathered substrates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"faq-cerplast\"\u003eFAQ — Atlas Cerplast Coverage, Compatibility, and Certification\u003c\/h2\u003e\n\u003ch3 id=\"faq-coverage\"\u003eHow many square metres does the 25 kg bucket cover?\u003c\/h3\u003e\n\u003cp\u003eEach 25 kg bucket covers approximately 75 m² at the standard 0.3 kg\/m² consumption rate on normally absorbent substrates. Highly porous masonry or rough-textured basecoats can draw slightly more product on the first few square metres, so ordering 10 % extra on older brick or blockwork elevations gives you enough material to maintain consistent coverage without stretching the coat too thinly. A splash test on a representative wall section confirms whether the substrate is at the standard rate or the higher end before placing a full order.\u003c\/p\u003e\n\u003ch3 id=\"faq-non-atlas-topcoat\"\u003eIs Atlas Cerplast compatible with non-Atlas render topcoats?\u003c\/h3\u003e\n\u003cp\u003eAtlas Cerplast is certified within the Atlas ETICS system (BBA Certificate 13\/5018) for use beneath Atlas silicone, acrylic-silicone, mineral, and mosaic renders. Using it beneath a non-Atlas topcoat falls outside the tested and certified system assembly, which may affect the manufacturer's warranty coverage. For projects specifying Ceresit render systems, the certified quartz primer is Ceresit CT16 — keeping every layer within the same approved system gives contractors and developers the strongest warranty position and the simplest Building Control documentation pathway. The full primer-by-system selection is covered in the \u003ca href=\"\/blogs\/news\/best-primer-for-silicone-render\"\u003eprimer selection guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 id=\"faq-occupied-buildings\"\u003eIs Atlas Cerplast safe to use on occupied buildings?\u003c\/h3\u003e\n\u003cp\u003eAtlas Cerplast is a water-based, solvent-free formulation that produces minimal odour during application and does not release harmful fumes while curing, so it suits work on occupied homes, schools, and care buildings without specialist extraction or protective equipment. Once the primer film dries fully it is vapour-permeable — the wall continues to breathe rather than trapping moisture — and chemically inert. Unused liquid product stays in its sealed original container for return to a local recycling centre as a water-based paint product; fully hardened residue in the bucket disposes of as standard construction waste.\u003c\/p\u003e\n\u003ch3 id=\"faq-rain-before-render\"\u003eWhat happens if the primed wall gets rained on before the render coat?\u003c\/h3\u003e\n\u003cp\u003eOnce fully cured (4–6 hours under standard conditions), the Cerplast film forms a temporary weather barrier that protects the primed facade for up to six months against rain, frost, and airborne dust. A rain shower after the primer has dried does not compromise the quartz aggregate bond — allow the surface to dry fully again before applying the topcoat. Checking a 48-hour weather forecast before priming and scheduling the render coat for the next dry day gives the primer ideal conditions to cure undisturbed and the topcoat a clean, dry surface to bond to.\u003c\/p\u003e\n\u003ch3 id=\"faq-consolidator-needed\"\u003eDo I need a separate consolidating primer as well as Cerplast?\u003c\/h3\u003e\n\u003cp\u003eOn clean, stable substrates with normal porosity — such as a freshly cured EWI basecoat or sound new blockwork — Cerplast alone provides the grip coat the render needs. On older, dusty, or highly absorbent masonry, applying a deep-penetrating consolidator such as Atlas Uni-Grunt first stabilises the pore structure and evens out suction; Cerplast then goes on top to create the quartz aggregate key for the topcoat. This two-coat sequence adds less than £1 per m² to the project cost while significantly improving bond reliability across mixed or deteriorated substrates.\u003c\/p\u003e\n\u003ch3 id=\"faq-shelf-life\"\u003eWhat is the shelf life and storage requirement?\u003c\/h3\u003e\n\u003cp\u003eAtlas Cerplast carries a 12-month shelf life from production date when stored sealed and upright in the original container at temperatures above +5 °C and below +25 °C, protected from frost and direct sunlight. Frozen primer cannot be recovered by thawing — the acrylic resin and aggregate separate irreversibly — so winter storage on unheated sites or in vans overnight needs a frost-protected arrangement above +5 °C.\u003c\/p\u003e\n\u003ch2 id=\"technical-documentation\"\u003eTechnical Documentation — Atlas Cerplast TDS, BBA, and ETA Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/fstrade.co.uk\/wp-content\/uploads\/2020\/12\/Cerplast_TDS.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAtlas Cerplast Technical Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.atlas.com.pl\/wp-content\/uploads\/2021\/09\/BBA-Agrement-Certificate-13-5018-MW-System.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eBBA Agrément Certificate 13\/5018 — Atlas ETICS System (PDF, manufacturer)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default 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