Zinsser Cover Stain High Hide Oil-Based Primer (5 gal.)

Give your next painting project a flawless foundation with Zinsser Cover Stain High Hide Oil-Based Primer. This professional-grade, stain-blocking primer seals tough stains and discolorations—such as water marks, tannin bleed, smoke damage and graffiti—while delivering exceptional hide and adhesion on a wide range of interior and exterior surfaces. Its oil-based formulation penetrates porous substrates and creates a uniform base for topcoats, reducing the number of finish coats needed and ensuring long-lasting results.

Whether you’re renovating a home, refreshing cabinetry or tackling exterior siding, this 5-gallon kit provides maximum coverage and value for large-scale projects. Fast drying and sandable, Zinsser Cover Stain Prime is trusted by contractors and DIYers alike for its reliability and superior stain-blocking performance.

Key Features

• Penetrates deep into bare wood, masonry, drywall and more
• Blocks water stains, knots, tannin bleed and smoke damage
• High-hide, white formula for excellent topcoat color accuracy
• Exceptional adhesion promotes long-lasting finish
• Fast drying and easy sanding, even in cooler temperatures
• Suitable for interior and exterior applications