TIKKURILA ULTRA PRIMER AP 0.9L Exterior Wood Primer

Description

Acrylate primer and undercoat for exterior wood surfaces.

Product features

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.

Recommended uses

Wooden exterior cladding, weatherboards, railings, fences, etc.

TECHNICAL DATA

4 
m2/l

9 
m2/l

Base paints

AP and C

Colour Range

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. 

Gloss grade

Matt

Coverage

4 - 6 m2/l for sawn wood surfaces, 7 - 9 m2/l for planed wood surfaces
 

Can sizes

0.9 L (only AP base paint), 2.7 L, 9 L

Thinner

Water

Application method

Apply with a wide paint brush or with high-pressure spraygun and brush. 
High-pressure spray:
- 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.

Solids volume

40 %.

Density

1.3 kg/l, ISO 2811

Storage

Protect from frost. Poorly closed or half empty can does not withstand long-term storage.

Product code

698

APPLICATION DETAILS

Application conditions

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 %.

Preparation

Untreated surfaces: 
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. 
 

Painting

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.