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Build: 1.2.38 - Tue, 11 Aug 2026 03:28:45 GMT

Dulux Precision

Stain & Mould Blocker

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Dulux Precision

Stain & Mould Blocker

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About Dulux Precision Stain & Mould Blocker

Dulux PRECISION® Stain & Mould Blocker has been specifically formulated to inhibit mould and mildew growth. It is a water-based, fast-drying powerful stain blocker for a wide range of oil-based stains.

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Key Points
  • Stops stains migrating through the topcoat
  • Touch dry 20 minutes, recoat two hours
  • Inhibits mould and mildew growth
  • Suitable for use under Dulux topcoats
  • Water-based
  • Available in 1L, 4L, 10L
Quick guide
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Touch Dry

20 minutes

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Re-coat

2 hours

Cleaning materials

Warm, soapy water

Application Tools

Brush, Roller, Spray

Product specification
Where to use
Areas
Wall
Ceiling
Surfaces
  • Paper-faced plasterboard
  • Timber
  • Mdf
  • Chipboard
  • Plywood
  • Aged Enamel
  • Render
  • Brick
  • Masonry
  • Concrete And Cement Sheet.
Precautions and limitations

All preparation and painting must conform to AS2311: The Painting of Buildings.
Do not overspread or exceed 12.0 square metres per litre per coat. In hot weather, rinse brush every half hour or use two and keep one standing in water.

Only apply if surface, air and product temperatures are between 10°C and 32°C. Do not apply if temperature is under 10C, or when temperature of surface may fall below 10C during the drying period, otherwise film formation will not be complete and poor properties will result.

Performance guide
  • Weather: Excellent when used as part of approved system.
  • Heat Resistance: Up to 70C.
  • Water: Good when top coated with approved topcoat
  • Solvent: Sensitive to aromatic hydrocarbons, alcohols and ketones.
  • Abrasion: Good when top coated. Product designed to be sandable prior to application of Top Coat
Surface preparation
Previously painted surface

All surfaces must be thoroughly dry, clean and free of all loose dirt, grease, mould, surface chalk and loose or flaking paint. New timber surfaces should be sanded smooth and dusted down prior to priming. Fill nail holes, imperfections and cracks with a suitable filler, sand and dust off. Spot prime filled areas.

For hard set plaster surfaces use Dulux sealer binder or Precision High Opacity Stain Blocker as the prepcoat.

How to apply
Brush, Roller

Roller, Brush & Spray:
Spray application not recommended for timber surfaces.
Stir contents thoroughly before and during use. Apply direct from the can. May be applied to dampened surfaces. If applied over dry, porous surfaces, dampen surface before applying.

Brush: Wet brushes with water prior to use to avoid clogging. Apply a full even coat direct from the container. Under hot conditions it may be necessary to thin with up to 100ml per litre of clean water.

Roller: Using a medium nap roller apply a full even coat direct from the container and finish by light parallel strokes with a dry roller. Airless/Conventional Spray: Suitable for application by all standard spray equipment. If necessary thin with up to 100ml per litre of water to aid atomisation.

Note: Spray application is not recommended for priming timber surfaces.

Clean brushes and rollers with water after use.

How to dispose responsibly
Unused paint
Unused paint: 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. Empty paint containers: 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

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