Rust-Oleum Painters Touch primer blocks stains, discolorations and irregularities for a smoother, more uniform paint finish. Apply to bare or painted wood, metal, plaster, masonry, or unglazed ceramic. Increases adhesion and durability of finish coat. Product features: Fast-drying, indoor/outdoor. Cleans with soap and water. Quart covers approximately 100 Sq. Ft.