Acrylate primer and undercoat for exterior wood surfaces.
Suitable for exterior painting of new, factory primed surfaces or surfaces previously painted with exterior paints for wooden facades before finishing with Ultra house paints or Pika-Teho.
Wooden exterior cladding, weatherboards, railings, fences, etc.
White AP base paint can be used as such or tinted close to the shade of the topcoat. Colour accuracy is not perfect.
Always tint C base paint before use.
4 - 6 m2/l for sawn wood surfaces, 7 - 9 m2/l for planed wood surfaces
0.9 L (only AP base paint), 2.7 L, 9 L
Apply with a wide paint brush or with high-pressure spraygun and brush.
- nozzle 0.018 - 0.023 i.e. 0.460 - 0.580 mm
- thinning 0 – 10 vol-%
Drying time at 23°C and 50% relative air humidity
Touch dry after 1 hour, recoatable after 2-4 hours under normal conditions. Low temperature and high relative humidity of air will extend drying time.
1.3 kg/l, ISO 2811
Protect from frost. Poorly closed or half empty can does not withstand long-term storage.
The surface to be painted must be dry i.e the moisture content of the wood shall not exceed 20 %. During painting and drying, the temperature of the air must be at least +5 ºC, and the relative humidity of the air below 80 %.
Remove all dirt, mould and loose material from untreated or industrially primed wood surface. Wash dirty and mouldy surfaces with Tikkurila Mould Removal solution according to instructions. Treat bare wood surfaces with Valtti Base or Valtti Akvabase priming oil at the earliest possible construction stage. Protect nail heads and other rusting metal parts with Rostex Super Metal Primer. Remove loose resin from knots.
Previously treated surfaces:
Scrape away loose paint, finish clean with a steel brush. Wash down dirty and mouldy surfaces with Tikkurila Mould Removal solution according to instructions. Treat bare wood surfaces with Valtti Base or Valtti Akvabase priming oil. Patch paint with Ultra Primer.
Stir the paint carefully before use and thin with water max. 10 %, if necessary. Apply with wide paint brush or high-pressure spray gun and brush. Treat end-grain carefully.
Top coat is recommended to be applied as soon as possible after priming, however latest within 10 months from priming.
Finish 1-2 times with Ultra or Pika-Teho house paint depening on the colour difference of the substrate and the condition of the surface to be treated.
Discoloration of paint may occur over knots and resinous areas present in the wood. Using a primer reduces discoloration.
Cleaning of tools
Clean tools with water. Tikkurila Pensselipesu (Tool Cleaner) is recommended to be used for cleaning hardened paint from tools.