ZINSSER COVER STAIN OIL-BASED PRIMER/SEALER - 1 GALLONZinsser Cover Stain Classic Oil 100 is a low-VOC oil-based primer, sealer, and stain blocker designed for the toughest priming challenges. Its alkyd formula penetrates and seals bare wood grain while blocking severe stains from smoke, fire damage, water marks, nicotine, and heavy tannin bleed that water-based primers can struggle with. Suitable for interior and exterior surfaces.
- Oil-based alkyd formula for superior stain blocking performance
- Covers approximately 400-450 sq ft per gallon
- Dries to touch in 1 hour, topcoat in 2 hours
- Blocks smoke, fire, water, nicotine, and tannin stains
- Excellent penetration into bare wood for smooth enamel holdout
- Sticks to all surfaces without sanding
- Low VOC formula (99 g/L) for regulatory compliance
- Apply by brush, roller, or airless sprayer
- Compatible under oil-based and latex topcoats
- Clean up with mineral spirits
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