The Rust-Oleum Zinsser cover stain undercoat primer sealer is an oil-based primer formulation, which is perfect for blocking stains and hiding dark colours. It penetrates deeply into exterior wood and seals effectively for longer endurance. This sealer blocks cedar, redwood and tannin bleed. Exterior wood sealer can stick on to a wide range of surfaces without sanding. It effectively seals water, smoke and nicotine stains. Available in 3.75L can. This waterproof sealer is splatter-resistant and tintable.
- Suitable to block stains and hide dark colours
- Formulated to block cedar, tannin and redwood bleed
- Seals water, smoke and nicotine stains
- Sticks to all surfaces without sanding
- Dries very quickly in 1 hour
- Use in both interior and exterior applications
- Penetrates deeply into exterior wood and seals