Rust-Oleum Concrete Etch is a high-performance product designed to prep concrete surfaces before painting, staining, or sealing. Its powerful formula deeply penetrates and opens up the pores of concrete to provide superior adhesion for coatings. The product is easy to use, and only requires dilution with water before application. Simply apply the solution to the surface with a brush or roller, scrub thoroughly, and rinse with water. Once dry, the surface is ready for coating. Rust-Oleum Concrete Etch is perfect for use on garage floors, basement floors, patios, and more.