Remove unsightly grease and oil marks and prepare your floors for paint or coatings with RUST-OLEUM EPOXYSHIELD® heavy-duty degreaser. This concentrated spot cleaner removes tough stains and helps ensure that paints and sealers fully adhere. RUST-OLEUM heavy-duty degreaser is formulated to clean grease and oil stains from concrete surfaces and is recommended for use prior to painting, staining and sealing. Use at full strength to clean tough grease and oil stains, transmission and brake fluids, gasoline, anti-freeze and other stains from concrete surfaces.