Rust-Oleum Concrete Stain + Sealer seals, protects and beautifies concrete and masonry surfaces from the damaging effects of water, chemicals, and UV light. This water-based formula forms a protective barrier to keep water out, protect against stains and extend the life of the concrete surface. It is suitable for use on driveways, patios, walkways, pool decks, basements and more. This product is not intended for use on garage floors. This product can be tinted to give the look of a semitransparent stain. It can be used without tint as a clear sealer over bare or stained concrete surfaces. Concrete Stain + Sealer can be used on interior or exterior, stained or bare concrete and masonry surfaces. Do not use on asphalt.