Dulux Trade Weathershield Quick Dry Exterior Flexible Undercoat

Dulux Trade Weathershield Quick Dry Exterior Flexible Undercoat is specifically formulated to be used with Weathershield topcoats to provide longer lasting protection for exterior woodwork. Its water-based formulation is quick drying and offers great flexibility to help absorb the natural movement of wood.

Looking for a primer to treat exterior wood, metal and masonry? Try Dulux Trade All Purpose Primer

To get the best results, ensure surfaces to be painted are sound, clean and dry (new surfaces particularly must be fully dry) and free from all defective or poorly adhering material such as dirt, grease or wax.

1. Thoroughly rub down previously painted surfaces, using "wet flatting" methods where possible, then wipe off with a dampened lint-free cloth to remove all traces of sanding dust
2. Special precautions should be taken during surface preparation of pre-1960s paint surfaces over wood and metal as they may contain harmful lead
3. Remove all loose and defective coatings, if necessary stripping back to bare wood
4. Remove and treat any mould, algae, lichen or moss with a suitable mould and mildew cleaner
5. Remove defective glazing material, clean the rebates and any loose or open joints
6. Replace any rotten wood and troublesome knots with new timber
7. Apply 1 or 2 coats of an appropriate knotting solution to treat any remaining knots in wood
8. Any surface defects should be filled with a suitable wood filler
9. Prime all bare wood with 2 coats of Dulux Trade Weathershield Preservative Primer or just 1 coat for previously painted wood

Always do a test area before starting any project to test for compatibility and adhesion. Follow the manufacturer's instructions on the tin at all times.

This product is for brush application only and should not be sprayed. It does not require thinning. Do not use or store in extremes of temperature (or below 10°C), or when there is likely to be rain or fog, and protect from frost.

1. Stir thoroughly before and periodically during use
2. Apply 2 full coats of Dulux Trade Weathershield Quick Dry Exterior Flexible Undercoat
3. For previously painted surfaces, apply only 1 coat
4. Allow to dry for a minimum of 2 hours between coats, then apply the appropriate Weathershield topcoat