Contains oil grabber a unique additive which penetrates the surface to dissolve tough stains from grease, oil, algae, mildew and dirt. Ideal for use on patios, concrete, brick, masonry, driveways, sidewalks, garage and basement floors and more. Promotes the adhesion of paint, stains, sealers, and other coatings. Coverage up to 2,000 sq. ft. Earth-friendly: Water-based, Biodegradable. Non-flammable. Non-Toxic. Non-Abrasive.