Zinsser Cover-Stain Oil-Base Interior/Exterior Sealer And Stain-Killer Primer, W

An all-purpose alkyd (oil-base) primer-sealer that seals porous surfaces, adheres to glossy surfaces and covers most stains. Dries to touch in 1 hour to a flat white that can be top coated in 2 hours. Helps prevent cedar and redwood bleed through. Can be tinted. Clean up with mineral spirits/paint thinner.
Designed for interior or exterior applications where an oil-base primer is desired
Provides excellent penetration and flexibility and has excellent adhesion and stain blocking properties
Excellent adhesion to dense, glossy surfaces such as enamel paints and varnishes
Sticks to all surfaces and sands easily
Recommended for application on surfaces that have been damaged by fire, smoke or water
Excellent tannin blocker - use to seal bare cedar and redwood