Give your next paint job a reliable foundation with Zinsser Cover Stain Oil-Based Primer & Sealer in White. This 1-gallon primer is designed for interior and exterior projects, combining strong adhesion with stain blocking to help hide dark colors, seal smoke and water stains, and prevent tannin bleed from wood. Use it on properly prepared wood, drywall, plaster, masonry, metal and many glossy painted surfaces. Its white, tintable formula accepts both oil-based and water-based topcoats, making it useful for walls, trim, cabinets and exterior woodwork. Apply with a brush, roller, pad or suitable sprayer. Under normal conditions it dries to the touch in approximately 30 minutes and can be recoated after 1 hour. Coverage is approximately 400–450 square feet per gallon, depending on surface porosity and application. Clean tools with mineral spirits or paint thinner.