Resene StainLock waterborne stain sealer is formulated to hold back a wide range of common surface stains to prevent them damaging subsequent topcoats. Designed for overcoating with your choice of Resene waterborne paint system. Ideal over stained areas where stain transmission is more likely.
Blocks a variety of stains preventing bleed into topcoats. Severe stains may require two coats of Resene StainLock
Suitable for blocking timber tannins for interior applications
Suitable for both interior and exterior application (with an appropriate topcoat)
Excellent adhesion to existing coatings including suitably prepared aged alkyd paint
Do not apply at temperatures below 10°C or when it is liable to drop below 10°C during the drying period.
Will not block active stains, the source of the stain must be removed.
Not weather resistant as a standalone coating. Must be overcoated with durable waterborne topcoats.
Not recommended for green concrete, seal with Resene Limelock (see Data Sheet D809) before applying Resene StainLock.
Exterior exposed tannin rich timbers including cedar, which will cycle through wet and dry conditions, produce fresh stains. As StainLock cannot overcome active stains, Resene Wood Primer (see Data Sheet D40) is recommended to hold back staining when light colours are used over exterior exposed tannin rich timbers.