Rust-Oleum RockSolid Semi-Transparent Concrete Stain creates the marbleized look of acid-stained concrete. Water-based formula gives ordinary concrete a unique finish that is both rugged and trendy. No chipping or peeling. Topcoat with a film-forming RockSolid Concrete Sealer to protect from the damaging effects of water, chemicals and UV light. Coverage area: 250 to 400 Sq. Ft. for bare or smooth, 175 to 200 Sq. Ft. for rough or porous concrete. Customize the tint base to the color of your choice.