Description
Atlas Salta is a silicone facade paint made to keep a rendered wall clean and dry while it keeps breathing. The Atlas Salta silicone masonry paint base white 10L is the bucket Renders World tints for whites, creams and light shades, and it sits in the silicone masonry paint range beside its grey twin.
Atlas Salta Silicone Masonry Paint Base White 10L on the Wall
Atlas builds the paint on a selected polymer dispersion with high-grade fillers and pigments. What that gives the wall, in the maker's own terms:
- A film that sheds dirt: very dense and smooth, so dirt and fungal spores that settle on it lose contact and are carried off by rain and wind.
- No foothold for algae: the coating is not prone to algae growth.
- A wall that still breathes: the film stays microporous and lets water vapour pass through the painted wall.
Atlas puts the paint's resistance to weathering down to combining the strengths of silicate and dispersion paints: elasticity, low absorbency and abrasion resistance in one film.
The first coat primes the substrate, so the sheet asks for no separate primer, and fresh mineral thin-coat render can take the paint five days after it was laid. The palette runs to 418 colours of the SAH render and paint colour system, eight of them whites.
The white base is the right bucket for whites, creams and light shades. Mid-tone and deep colours are tinted on the Atlas Salta grey base instead, so the SAH code decides which of the pair to order.
Where Atlas Marks Salta as the Right Paint
Atlas prints a suitability chart for the whole Salta range. Where this paint is the answer, the chart marks it with a plus; elsewhere it points to a different paint of the Salta range, and Renders World stocks only Salta itself. That second column is worth knowing before the order is placed.
| Surface or setting | Atlas Salta |
|---|---|
| Insulated facades (EPS, mineral wool), solid walls, soffits | Marked suitable |
| Concrete, sand-and-cement, lime-cement render, base coat | Marked suitable |
| Silicone thin-coat render, brick, block, aerated concrete | Marked suitable |
| An existing silicone paint coat | Marked suitable |
| Mineral and silicate thin-coat render | Another Salta paint recommended |
| Acrylic thin-coat render, acrylic or silicate paint coats | Another Salta paint recommended |
| Lime and renovation render, historic buildings | Another Salta paint recommended |
| Gypsum plaster, skim, plasterboard, OSB, interior walls | Another Salta paint recommended |
| Walls close to trees, wetlands or open water | Another Salta paint recommended |
One line in the chart deserves care. The same sheet that clears fresh mineral thin-coat render for painting after five days names a different Salta as its first choice on mineral and silicate thin coats. On silicone thin-coat render, concrete or sand-and-cement, the chart marks Salta itself as suitable.
Atlas Salta Technical Data
| Property | Declared value |
|---|---|
| Binder | Selected polymer dispersion, high-grade fillers and pigments |
| Colours | 418 in the SAH system, 8 of them whites |
| Gloss | G3, matt |
| Coating thickness | E3, 100 to 200 µm |
| Grain size | S1, fine, under 100 µm |
| Water vapour transmission | V2, medium, 15 to 150 g/m²·d |
| Diffusion resistance Sd, one coat | 0.14 m to 1.4 m |
| Water permeability | W3, low, under 0.1 kg/m²·h⁰·⁵ |
| Hiding power | Class 2, yield 8 m² |
| Adhesion, PN-80/C-81531 | Degree 1 |
| Density | 1.42 g/cm³ |
| Acidity | pH 8 |
| Working conditions | +5 °C to +30 °C, relative humidity under 80% |
| Drying · next coat | 2 to 6 h · next coat after about 6 h (20 °C, 50% RH) |
| Volatile organic compounds | Category A/c/FW, at most 39.9 g/l against a limit of 40 g/l |
| Pack · shelf life | 10 l plastic bucket · 12 months from the production date |
The Sd range and the V2 class describe the same property from two sides, and the range sits inside the class. The density puts a full bucket at about 14.2 kg of paint (10 l × 1.42); the safety data sheet rounds density to 1.5 g/cm³, which would make it 15 kg.
Salta is also a named finish in Atlas's external wall insulation systems, among them the systems under ETA-06/0081, ETA-06/0173, ETA-16/0933 and ETA-07/0316. Those assessments cover the whole build-up, not the paint on its own.
How to Apply Atlas Salta
The wall has to be dry, sound and load-bearing, and clean of dust, dirt, wax and grease. Weak old paint is taken off, and a repair mortar such as Atlas ZW 330 fills small damage and cracks, so the new coat holds on a sound surface. Algae, grime or cement splashes are cleared first with a cement remover for renders or a mould remover from the same range. Priming the substrate is not required.
- Let new render cure: 5 days on mineral thin-coat render, 7 days on dispersion thin-coat render, 2 to 4 weeks on traditional mineral render.
- Stir, then thin the first coat: mix with a slow-speed paddle, never with other materials, and add 5% clean water to the first coat, 0.5 l per 10 l bucket, keeping that ratio across the whole wall.
- Finish undiluted: the final coat, and every sprayed coat, goes on straight from the bucket.
The paint goes on by roller, brush or spray; for spraying Atlas gives a Wagner HC 950 with a 517 tip at 150 to 170 bar, or an HEA 517 tip at 100 to 120 bar. Whether the wall takes one coat or a second depends on how absorbent and how textured it is. Breaks are planned in advance, at corners and returns, under downpipes and where colours meet, and each face is painted without stopping. In poor weather a third coat may be needed to even the surface out.
On fresh render the scaffold stays netted from the first day of rendering until 24 hours after painting ends; old render gets at least 48 hours to dry after rain, longer in damp air. The finished face is kept out of hard sun, wind and rain while it dries, and no painting is done below +5 °C. Skipping these steps is what leads to patchy colour and salt stains on a rendered wall.
Colour evenness depends on how dry the background is, so one wall takes paint from one production date. The paint smooths the render texture slightly, and faces with different textures can look like slightly different shades. Tools wash out in clean water before the paint dries. The full working sequence is in the silicone paint application guide.
How Many Buckets a Wall Takes
Atlas gives consumption per coat by render type and asks for a trial patch to settle the exact figure. Converted to one 10 l bucket:
- Mineral thin-coat render: about 0.25 l/m², so 10 ÷ 0.25 = about 40 m² per coat.
- Dispersion thin-coat render: about 0.22 l/m², so 10 ÷ 0.22 = about 45 m² per coat.
- Smooth render: about 0.15 l/m², so 10 ÷ 0.15 = about 66 m² per coat.
The sheet's own yield column says 5.0 m² per litre for dispersion render and 7 to 8 m² for smooth render, more than its consumption figures allow. Order on consumption: it is the larger quantity, and running short halfway across a face is what breaks the one-date rule.
Storage, Shelf Life and Safety
- Storage: tightly closed buckets in a cool, dry, ventilated place, between +5 °C and +30 °C.
- Shelf life: 12 months from the production date on the bucket.
- Settling: normal in storage and protects the paint from drying out; mix it back by machine before use.
The safety data sheet classifies Salta as Skin Sens. 1A (H317), STOT RE 2 (H373) and Aquatic Chronic 3 (H412), and sets out the protective equipment for the job.
Ordering the White Base
Renders World tints the Atlas Salta silicone masonry paint base white 10L to the SAH code in the shop as orders come in, so tinting adds no lead time of its own. Orders are processed the same day when the base is in stock. Deciding between silicone and acrylic first? The silicone or acrylic masonry paint comparison sets the two side by side.
- Delivery: the team quotes it after the order; parcels up to 25 kg go next day, pallets next day or in two business days on the economy option, and every delivery is kerbside.
- Collection: from the counter at Unit 9A, Central Trading Estate, Southampton SO14 5JP, Monday to Friday 7am to 5pm and Saturday 7am to 12pm, telephone 023 8200 2442.
- Returns: untinted buckets can go back within 14 days in original condition when bought directly from Renders World; tinted paint is outside that return.
FAQ
Does Atlas Salta need a primer?
No. The first coat primes the substrate, and Atlas states that priming is not required for the Atlas Salta silicone masonry paint base white 10L. The wall still has to be dry, sound and clean.
How soon can new render be painted?
After 5 days on mineral thin-coat render, 7 days on dispersion thin-coat render and 2 to 4 weeks on traditional render, longer in cold or damp weather.
White base or grey base?
White for whites, creams and light shades; grey for mid-tone and deep colours. The SAH code settles it, and the shop tints either one.
How heavy is a 10 litre bucket?
About 14 to 15 kg of paint. The technical sheet gives a density of 1.42 g/cm³ and the safety data sheet 1.5.
Can it be used indoors or on acrylic render?
Atlas recommends a different Salta paint for interior walls, for acrylic thin-coat render and for acrylic or silicate paint coats, and Renders World does not stock it. On silicone thin-coat render, concrete and sand-and-cement the chart marks Salta itself as suitable.
Technical Documentation
- Atlas Salta — Karta Techniczna, updated 3 November 2025 (PDF, Polish) — the technical data sheet in force.
- Atlas Salta — Karta Charakterystyki, version 9.1 (PDF, Polish) — the safety data sheet.