PRECISION® Stain & Mould Blocker

Use on interior & spot exterior surfaces including: 

• Paper-faced plasterboard

• Timber

• MDF

• Chipboard

• Plywood

• Aged enamel

• Brick

• Render

• Masonry

• Concrete

• Cement sheet

• Cladding

• Previously painted surfaces and suitably primed steel

Remove as much of the stain as possible by cleaning with Selleys® Sugar Soap, sanding or, scraping.

Previously painted surfaces: 

Scrape off loose and flaking paint. Wash with Selleys® Sugar Soap, to remove grease and grime. 

Fill nail holes and cracks with a suitable filler, then sand smooth. 

Bare timber including weatherboards and hardboards: 

Sand bare timber to a clean surface and dust down. Fill nail holes and cracks with suitable filler, then sand smooth and dust off. 

Chalky surfaces: 

Sand back to a strongly bound surface and dust off.

High gloss or hard, aged enamel surfaces: If required sand to a dull finish. 

Plasterboard, masonry, MDF, render, concrete, cement sheet, suitably primed steel, galvanised iron and ZINCALUME®: 

Fill holes and other imperfections with a suitable filler, sand and dust off. 

Allow cement render and concrete to properly cure before priming.

1. Stir well before use with a broad flat paddle using an up and down scooping action. 

2. Apply one coat of Dulux PRECISION® Stain & Mould Blocker. 

3. For heavily stained surfaces on paper-faced plasterboard where there is a different texture between paper and joining compound, or where extra filling and smoothness are required, a second coat may be required. 

Stain blocking: 

• After priming, test for stain bleed-through by applying the topcoat to a small section. 

• If the stain bleeds through the topcoat, apply a second coat of primer and test again before topcoating the entire area. 

• If bleeding continues, a longer dry time is needed before topcoating. 

Do not pour leftover paint down the drain. 

Unwanted paint should be brushed out on newspaper and allowed to dry, and then disposed of via domestic waste collections. 

For more information on responsible disposal of paint and packaging visit painttakeback.co.nz or paintback.com.au.

Leave empty paint containers open in a well-ventilated area to dry out. When dry, recycle the container via steel can recycling programs.

Disposal of empty paint containers via domestic recycling programs may differ between local authorities. Check with your local council first. 

Do not reuse container unless thoroughly decontaminated. 

For more information on responsible disposal of paint and packaging visit paintback.com.au or painttakeback.co.nz