Atlas Acrylic Render White 25kg – Durable Textured EWI Finish

Product Overview

Professional-grade atlas acrylic render white 25kg UK is a high-performance, thin-coat decorative finish specifically engineered for External Wall Insulation (EWI) systems requiring superior mechanical strength. Formulated with advanced acrylic resins and reinforced with dispersed microfibers, this textured finish for EWI systems UK creates a flexible, impact-resistant shield for building facades. It is the ideal specification for high-traffic environments, commercial developments, and public access buildings such as schools or hospitals, where durability and resistance to damage are paramount. Designed for the UK climate, it offers excellent colour stability and protection against biological growth while maintaining a consistent "spotted" texture.

Key Benefits

• High Impact Resistance: Microfiber-reinforced formula compensates for structural stress and physical knocks, preventing chipping and surface cracks.
• Low Water Absorption: Advanced polymer binders create a tight structure that shields the insulation layer from driving rain and moisture.
• Bio-Protection System: Formulated with biologically active agents to create a hostile environment for algae, mould, and fungi growth in damp UK conditions.
• Exceptional Adhesion: Ensures a permanent, high-strength bond to cementitious basecoats and mineral substrates.
• UV & Colour Stability: Utilizing modern pigments and an automated dosing process, the brilliant white finish remains vibrant without yellowing or fading.
• Easy Texture Forming: Optimized for rapid on-site application, allowing for a uniform 1.5mm or 2.0mm "baranek" finish.

Technical Specifications

• Coverage

Property	Value / Standard
Base Material	Advanced Acrylic Polymer Resin
Density	Approx. 1.7 kg/dm³
Grain Size	1.5 mm (Standard) / 2.0 mm
Adhesion to Substrate	Min. 0.35 MPa
Water Absorption	W3 (Low) per EN 15824
Vapour Permeability	V2 (Medium) per EN 15824
Up to 10 m² per 25kg tub (~2.5 kg/m²)
Standard Compliance	EN 15824:2017 / BBA Certified System

Application & Compatibility

• Core Substrates: Best suited for graphite EPS and XPS insulation systems.
• Use-Case Focus: Highly recommended for commercial facades, outhouses, and lower-level elevations prone to mechanical wear.
• Mandatory Priming: For guaranteed results, apply over a cured layer of Atlas Cerplast or Ceresit CT16 quartz primer.
• System Integration: Part of a certified thermal envelope when used with reinforcement mesh and fibre-enhanced adhesives.

Installation Notes

Substrates must be clean, structurally sound, and primed at least 24 hours prior to application to regulate suction. The atlas white acrylic render must be mixed with a low-speed mechanical stirrer before use. To ensure a professional finish without visible join lines, always work in a "wet-on-wet" manner, completing entire elevations in a single continuous operation. Avoid application in direct intense sunlight, high winds, or when rain is expected within the first 24 hours. For winter applications near +5°C, ensure the humidity is within acceptable range to allow proper film formation.

Is This Product Right for Your Project?

• Choose this product if: You require a cost-effective, high-impact resistant finish for a commercial project or a residential building using EPS insulation.
• Consider alternatives if: You are rendering over a highly breathable substrate like mineral wool; in such cases, our premium silicone renders are mandatory to ensure system breathability.

Frequently Asked Questions

Can I apply acrylic render over mineral wool?

No. Acrylic render has lower vapour permeability than silicone. For mineral wool systems, you must use silicone or silicate renders to prevent moisture from becoming trapped within the stone wool fibers.

Does it require machine application?

While the 1.5mm grain is specifically recommended for machine application to increase site efficiency, it is also perfectly suited for manual trowel application by professional contractors.

Is it through-coloured?

Yes. The white pigment is integrated throughout the render mass. Unlike traditional masonry paint, this finish will not peel or flake, and minor surface scratches remain virtually invisible.