Get ultimate hiding power indoors and out with few VOCs thanks to the Rust-Oleum Zinsser Cover Stain Oil-Based Primer. This whole-house primer-sealer is a favorite with professionals. Use it to block stains, hide dark colors, prevent tannin bleed and penetrate and seal exterior wood. The primer's oil-based formula provides unparalleled penetration for superior adhesion and stain blocking. It's perfect for nearly all interior and exterior surfaces including ones with water, smoke or fire staining.

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