Dulux Precision High Opacity Stain Blocker is an interior and exterior oil based, fast drying, superior stain blocker for a wide range of water and oil based stains.

One coat effectively blocks stains so they will not migrate through subsequent coats of paint. It delivers excellent hiding power over stubborn stains and dark colours and is ideal for blocking tannin. With excellent adhesion properties, it is suitable as a primer, sealer and undercoat.