Cracks from temperature swings
Facades expand in summer and contract in winter. Traditional masonry paints crack — and those hairline cracks become entry points for water and frost.
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Facade painting
Facade painting
with liquid rubber — breathable & crack-bridging
Elastomeric facade paint against cracks, weathering and algae infestation. Direct on render, concrete or masonry — without primer in most cases. Follows thermal building movement and lets wall moisture escape.
summarize
At a glance
Liquid rubber for facades is an elastic, water-based coating that bridges hairline cracks while remaining breathable (V2 to EN 1062-1). Apply by brush, roller or airless spray in 2 coats (100–200 g/m² each). Suitable for render, concrete, brick and plinths. Resistant to UV, frost and driving rain.
Why classic facade paint fails
A facade works constantly — it heats up, cools down, gets wet, dries out. Rigid paints crack, peel, fade. The result: saturated walls, mould from the inside, and an appearance that gets worse year by year.
Algae, mould, soiling
Damp weather-exposed sides become a breeding ground for algae and fungi. Black spots, green film — bad for looks and building fabric, a health concern if growth reaches indoor spaces.
Fading & chalking
UV radiation breaks down pigments. After 3–5 years, traditional paints look dull, fade to grey or form a chalky surface that rubs off on contact.
Why liquid rubber for facades
Bridges cracks up to 1.5 mm
Highly elastic and crack-bridging — moves with every thermal expansion of the facade. Fine hairline cracks disappear beneath the elastic membrane.
Vapour-permeable (V2 EN 1062-1)
Lets moisture in the wall escape outwards, but blocks rain from getting in. No moisture trapped inside the wall.
UV-stable, no greying
Stabilised pigments keep their colour even after 10 years of full sun. No chalking, no fading.
Works on virtually any substrate
Render, concrete, masonry, brick, older paint — paint straight over them. In most cases you can skip the primer entirely.
Step-by-step guide
Step 01
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Prepare the substrate
A clean base for years of adhesion.
Clean the facade thoroughly — a pressure washer (min. 100 bar) removes algae, dirt, loose paint and chalking. Mechanically remove loose, flaking old paint (scraper, wire brush). Pre-fill cracks > 1 mm with repair mortar and let cure for 7 days.
For algae or fungal infestation, pre-treat with an algae/fungus remover, let act for 24 h, rinse thoroughly and let dry for 48 h.
Pro tip: The Sellotape test checks old-paint adhesion — stick a strip on and pull off sharply. If paint stays attached, the substrate is sound; if only flakes come off, full removal is needed.
Step 02
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05
Prime (if needed)
Lock down strongly absorbent substrates.
On strongly absorbent substrate (fresh render, lime sandstone, old lime render) or heavily chalking old paints: apply a hydrophobising deep primer. Reduces first-coat consumption by up to 30 % and significantly improves adhesion. Let dry for 12 h before further work.
On sound, closed paint, primer can be skipped — proceed directly to Step 3.
Pro tip: Apply deep primer thinly — a thick coat forms a glossy film that worsens main-coat adhesion.
Step 03
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05
First coat — penetration
Dilute with up to 5 % water (up to 10 % with airless sprayer).
Apply with lambswool roller (short nap, 10 mm), brush or airless sprayer (15–18 MPa, nozzle 0.021–0.026″). Dilute with up to 5 % water (sprayer up to 10 %). Diluted, the first coat penetrates the substrate and forms the bonding base. Consumption 100–200 g/m².
Particularly careful at connections to windows, doors and plinths — these detail points demand gapless coverage.
Pro tip: On tall facades use a cherry picker or scaffolding — never ladders above 4 m; the risk is too high and work quality suffers from a wobbly position.
Step 04
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05
Wait the drying time
At least 4 hours at 23 °C.
At 23 °C and 50 % RH dry for at least 4 hours. Wait longer in cooler weather or high humidity (up to 8 h). Test: the coat must no longer be tacky to finger pressure and leave no impressions.
Protect the facade from direct sun (streaking) and rain (softening) during drying — stretch a tarpaulin if uncertain.
Pro tip: Follow the sun — start on the west side in the morning, work to the east side in the afternoon. This avoids direct sun during drying.
Step 05
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Second coat — coverage
Apply undiluted, cross to the first coat.
Apply the second coat cross to the first for even coverage. Consumption again 100–200 g/m². Undiluted for full layer thickness. Rain-resistant after 6 h (manufacturer specification), fully load-bearing after 28 days.
On the weather side (south/west) a third coat is recommended — UV and rain load there is 2–3× higher than on protected sides and otherwise shortens service life.
Pro tip: Judge the final colour only after full curing (28 days) — fresh coating looks slightly milky, especially on the shaded side, but clears up completely.
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Pro tip
On the weather side (south/west) apply an additional third coat — UV and rain load is 2–3× higher there than on protected sides. On heavily weathered or chalky old coatings apply a deep primer first.
Technical data
Consumption per coat
100–200 g/m² (0.1–0.2 kg/m²)
Recommended coats
2 (3 for weather-exposed side)
Drying time
2 h dust-dry · 4 h recoatable
Rain resistance
after 6 h (manufacturer specification)
Full cure
28 days
Application temperature
+10 °C to +30 °C
Service temperature
−20 °C to +50 °C
Elasticity
highly elastic (Class A0/C0 to EN 1062-1)
Water-vapour permeability
V2 to EN 1062-1 (vapour-permeable)
Binder
Acrylic latex (solvent-free)
Tool cleaning
Water, immediately after application
How much material do I need?
Enter your area and desired number of coats — we recommend the optimum tub combination.
m²
Standard: 2 coats. 3 for heavily exposed surfaces.
info
Consumption: 150 g/m² per coat. +10 % buffer for offcuts and uneven surfaces. For larger projects (> 80 m²) contact us for individual advice.
Recommendation
6,6 kg
needed
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Free shipping from £170 — review your basket after adding.
06 / Bestsellers
Recommended colours for facades
White and light greys dominate modern facades — beige and brown tones suit traditional buildings. Graphite works well as an accent on plinths or window reveals.
Bestsellers
Sale
Sale
Sale
Sale
Liquid Rubber Paint White RAL 9003
from £22.00
£69.00
incl. VAT, excl. shipping
Liquid Rubber Paint Grey RAL 7046
from £22.00
£69.00
incl. VAT, excl. shipping
Liquid Rubber Paint Graphite RAL 7024
from £22.00
£69.00
incl. VAT, excl. shipping
Liquid Rubber Paint Beige RAL 1015
from £22.00
£69.00
incl. VAT, excl. shipping
Liquid Rubber Paint Brown RAL 8017
from £20.00
£69.00
incl. VAT, excl. shipping
Exterior Wall Paint — Breathable & Crack-Bridging
Cracks in the render, flaking old paint, algae growth. An elastic facade paint based on acrylic latex bridges fine cracks and stays breathable — ideal for renovations and repaints.
Why rigid paints fail
- Mineral and silicate paints are rigid — cracks appear as soon as the render moves
- Emulsion paint is not breathable enough — moisture builds up inside the wall
- Bitumen-based paints turn yellow and are not UV-stable
- Conventional masonry paint lasts 5–7 years in good conditions — our coating is rated for at least 7
Highly elastic facade paint
An acrylic-latex base makes the paint elastic (bridges cracks up to approx. 0.5 mm), breathable (water vapour permeability 60–70 g/m²·day, class V2 to EN 1062-1) and water-repellent at the same time. Bonus: 14 RAL colours available straight away, no tinting machine needed.
Step by step
- Check the substrate. Inspect the facade for loose areas, old coatings, algae and efflorescence. Test chalking paint with a wet cloth — does colour come off when you wipe?
- Clean. Pressure washer on a gentle jet (not too close), plus algae remover where needed. Allow 48 hours to dry completely.
- Repair cracks and loose areas. Fill cracks of 1 mm or more with an elastic repair compound. Chip out loose render and re-render it, then wait 28 days.
- Penetrating primer on absorbent substrates. Mineral render, concrete and fresh render are very absorbent. Prime before the first coat — otherwise consumption rises by 50 %.
- Two coats of liquid rubber / liquid rubber paint. Apply with a lambswool roller or airless sprayer. First coat thinned by 0–5 %, second undiluted. Consumption 150–200 g/m² per coat.
Pro tip.
Paint the sunny side early in the morning (before 10 am) or late in the afternoon (after 4 pm). Direct sun makes the paint dry too fast and causes cracks from uneven film formation. On overcast days you can paint all day.
How much do you need?
For 2 coats: 0.3–0.4 kg/m². For an 80 m² facade ≈ 24–32 kg (4 × 6 kg). On very absorbent substrates, add 20 %.
Which colour?
White (RAL 9003) for a classic light facade, Grey (RAL 7046) for a modern town house, Graphite (RAL 7024) for accents. All 14 RAL colours are UV-stable.
Common mistakes to avoid
- Painting in the rain or on a damp wall — no adhesion
- Absorbent substrate without primer — consumption explodes
- Painting over algae without algae remover — they keep growing under the paint
- Applying with frost expected within 24 h — the coating becomes brittle
FAQ
Which substrates are suitable?
Mineral render, lime-cement render, concrete, brick and sound old emulsion paints.
Does it cope with a hot summer?
Yes. Service temperature −20 °C to +50 °C, UV resistance tested to DSTU ISO 16474-2.
Do I need scaffolding?
Up to a facade height of 6 m a ladder is enough. Above that, use a fixed scaffold for safety.
What does a repaint cost?
For 80 m²: material around £215, scaffold hire (if needed) around £350 per week. A professional repaint costs roughly £22–35/m², i.e. £1,750–2,800.
Ready to start? Choose your colour and tub size.
Go to the shop → · Application overview · FAQ
Related terms: Our product is sold in DIY stores and the trade under several names — liquid rubber, liquid rubber paint, liquid membrane, rubber paint, rubberised paint, flexible coating, elastic exterior paint or polymer coating. They all mean the same product: a waterproof, highly elastic coating based on acrylic latex.
FAQ — facade painting
- Can I paint over an existing coating?
- Yes, provided the old paint is sound. Test with a Sellotape strip — if paint sticks when pulled off, the substrate is stable. Stabilise heavily chalking paints (hand turns white on contact) with a deep primer or remove mechanically.
- Which substrates need a primer?
- Fresh render (< 28 days), lime sandstone and strongly absorbent concrete need a deep primer. Existing sound paints and normal exterior render usually need no primer — RubberPaint bonds directly.
- What should I do about algae or mould?
- Mandatory: pre-treat with algae/fungus remover (e.g. Algex, NeoPur) before painting, let act for at least 24 h, rinse thoroughly and dry for 48 h. Otherwise the infestation continues under the coating — bubbles and delamination follow.
- At what temperature can I paint?
- Optimal +15 to +25 °C. At least +10 °C air and substrate temperature across the full 28 days of curing. Avoid direct midday sun — the paint dries too quickly and streaks form. Morning hours on the weather side, afternoon on the protected side.
- How does RubberPaint differ from a normal masonry paint?
- Classic dispersion paint is thin, rigid and chalky. RubberPaint is an elastic membrane — highly elastic coating (Class A0/C0) — bridging cracks, taking up movement, breathable. Service life and weather resistance significantly higher than standard products.
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Also suitable for other substrates
The same elastic liquid-rubber coating for many more applications — explore all use cases.
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Got a technical question?
Our technical team advises on complex applications, substrate analysis and film-thickness calculation.