RUBBER FARBA Rubber paint for roofs, slate and plinths, Gray RAL 7046, 6 kg

The tin states 35 m² for 3.5 kg. That is one coat. The figures below are for three coats at 150 g/m², as used on a roof.

• 1.2 kg covers about 2.7 m²: a gutter or a post;

• 3.5 kg covers about 8 m²: a canopy or small shelter;

• 6 kg covers about 13 m²: an extension roof;

• 12 kg covers about 27 m²: a roof slope or a plinth around the building.

Preparing the substrate

• rust is taken back to sound metal;

• galvanised steel and aluminium are degreased;

• the substrate is dry, sound and clean: free of dust, efflorescence, grease and flaking coatings;

• fresh render needs at least 28 days;

• cracks are opened up and filled with a repair compound;

• absorbent substrates are primed: PROFI GRUNT.

The weather window

• air, substrate and paint temperature: +5…+30 °C, ideally +10…+25 °C;

• air humidity 80 % or below;

• no rain or snow during the work and for 24 hours after;

• do not paint in direct sun, on a hot wall or in strong wind.

Thinning and tools

• thinning is usually unnecessary: the paint is ready after stirring;

• if needed, up to 5–10 % water for the first coat or for spraying;

• roller, brush for abutments, spray gun for large areas.

Coats and drying

• 2–3 coats: the third is for roofs and anywhere the coating must be watertight;

• between coats: 1–2 hours;

• fully dry: 24 hours;

• the coating reaches full strength over 7–28 days.

After the job

• rinse tools with water straight away;

• store tightly closed at +5…+30 °C, do not freeze.

• Can it go on slate, bitumen sheeting and metal roof tiles?
  Yes, slate, roof tiles, bitumen corrugated sheeting and profiled sheet are all on the data sheet's substrate list. The surface must be clean, dry and degreased, free of dust, fungus and mould.

• Can rubber paint go on galvanised steel and aluminium?
  Yes, but galvanised steel only over GF-021 primer. Galvanised steel, aluminium and profiled sheet are on the data sheet's substrate list. Clean, degrease and dry the surface; galvanised steel then gets 1 coat of DEKOMAL GF-021 or EXTRAMAL GF-021 and is painted once the primer is dry. Rubber paint is not applied directly to zinc, and ZAKHYST 3 in 1 is not suitable for galvanised steel.

• Can it go over enamel or old alkyd paint?
  Yes, it can be applied over surfaces previously painted with alkyd and oil paints. Gloss or semi-gloss enamel is sanded to a matt finish, and a sound old coating is rubbed down with fine sandpaper and degreased.

• Can rubber paint be used on wood?
  Yes, timber, plywood, chipboard, cement-bonded particle board and hardboard are on the substrate list. New wood and exterior surfaces first get one coat of DREVOZAKHYST impregnant, which protects against beetles, fungus and mould.

• Can it be used on floors, thresholds or plastic?
  No, the data sheet does not recommend RUBBER FARBA for floors, thresholds or plastics. For a concrete floor there is AKRYLBET, for a wooden one PF-266 enamel.

• Is it suitable for bathrooms and kitchens?
  Yes, bathroom, kitchen and hallway walls are listed among its uses. The film resists water, detergents and disinfectants, with class 1 wet-scrub resistance.

• How many coats?
  2–3 coats, the second once the first is dry. A coat dries in up to 2 hours at +23 °C, and the film reaches full strength after 28 days. Paint at air temperatures of +10 to +30 °C and humidity below 80%.

• Does it need tinting?
  No, eight RAL colours, white included, come ready in the tub. For any other shade there is a transparent base tinted with COLOR MIX concentrate pastes.

• How much paint for a 60 m² roof?
  Coverage is 100–200 g/m² per coat, so two coats take 12–24 kg and three take 18–36 kg. The exact figure depends on the substrate, application method and colour.