A premium quality, 100% acrylic interior and exterior primer formulated for high hiding, excellent adhesion (even over chalky surfaces), blister resistance, quick dry, spatterproof and minimal odor with excellent flow and leveling. Recommended For: Interior Surfaces: New or Previously Painted Wood, Plywood, Drywall, Ceiling Tile, Formica iuml; iquest; frac12;, Masonite iuml; iquest; frac12;, Ceramic Tile and Cured Plaster. All-Purpose 100% Acrylic Primer is an excellent sealer and primer for use under new wallcoverings and can also be used as a primer coat over existing wallcoverings. Exterior Surfaces: New or Previously Painted Wood, Aluminum and Hardboard Siding, Shingles, Shakes, Concrete, Masonry, Brick and Metal Surfaces.