Rust-Oleum Concrete Preparation Etch is the ideal solution for treating interior and exterior concrete prior to coating or sealing. When mixed with water, citric-acid based etching powder opens up small pores on concrete, allowing paint to better grip and adhere for a longer lasting finish.From the ManufacturerRust-Oleum EPOXYShield Concrete Etch prepares concrete surfaces for painting and staining. When mixed with water, Concrete Etch creates a surface profile that allows for maximum penetration and adhesion.
