Risse durch Temperaturwechsel
Fassaden dehnen sich im Sommer aus und ziehen sich im Winter zusammen. Klassische Putzfarben reißen — feine Risse werden zu Eintrittspforten für Wasser und Frost.
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Facade painting
Facade painting —
elastic, breathable & durable
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.
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.
Algen, Schimmel, Verschmutzung
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.
Verblassen & Kreidung
UV-Strahlung baut Pigmente ab. Nach 3–5 Jahren wirken klassische Farben matt, vergrauen oder bilden eine kreidige Schicht, die bei Berührung abfärbt.
Why liquid rubber for facades
Überbrückt Risse bis 1,5 mm
Hochelastisch (Klasse A0/C0 nach EN 1062-1) — folgt jeder thermischen Bewegung der Fassade. Feine Haarrisse verschwinden unter der elastischen Membran.
Diffusionsoffen (V2 EN 1062-1)
Lässt Mauerfeuchtigkeit von innen entweichen, sperrt aber Regen von außen aus. Kein Feuchtigkeitsstau in der Wand.
UV-stable, no greying
Stabilisierte Pigmente halten Farbe auch nach 10 Jahren prallem Sonnenschein. Keine Kreidung, kein Verblassen.
Universell auf jedem Untergrund
Putz, Beton, Mauerwerk, Klinker, alte Anstriche — direkt überstreichbar. Spart Grundierungsarbeit in den meisten Fällen.
Step-by-step guide
Step 01
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05
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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05
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 24 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 24 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 do I need?
Berechnen Sie die Wandfläche (Höhe × Breite minus Fenster/Türen). Auf Wetterseiten empfehlen wir 3 Schichten statt 2.
m²
Standard: 2 coats. 3 for heavily-stressed surfaces.
info
Verbrauch: 150 g/m² pro Schicht. +10 % Reserve für Schnittkanten und unebene Flächen. Bei Großprojekten (> 80 m²) kontaktieren Sie uns für eine individuelle Beratung.
Empfehlung
6,6 kg
benötigt
für 20 m² · 2 Schichten
Wird berechnet…
Gesamtmenge
—
Gesamtpreis
—
Versandkostenfrei ab 199 € — schauen Sie sich Ihren Warenkorb nach dem Hinzufügen an.
Recommended colours for facades
Weiß und helle Grautöne dominieren moderne Fassaden — Beige und Brauntöne harmonieren mit klassischen Gebäuden. Anthrazit für Akzente an Sockel oder Fensterleibungen.
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FAQ — facade painting
- Kann ich über alten Anstrich auftragen?
- 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.
- Welche Untergründe benötigen Grundierung?
- 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.
- Was tun bei Algen- oder Schimmelbefall?
- 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.
- Bei welcher Temperatur darf ich streichen?
- 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.
- Wie unterscheidet sich RubberPaint von normaler Fassadenfarbe?
- 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.
Haben Sie eine technische Frage zu Ihrer Fassade?
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