Description: On concrete, brick pavers, tile, asphalt, and concrete coatings, F9 BARC Rust and Oxidation Remover is a non-flammable, non-abrasive cleaner that is concentrated and formulated to go a long way. Rust, orange battery acid burn, and fertilizer stains can all be removed with ease and speed. While maintaining its strength over time, it can return concrete to its original bright gray hue. It doesn't require mixing, brushing, or sloppy pastes, and it's even less harmful to people and plants than hydrochloric acid. Your hardest tasks will be easier to clean up and leave less mess than before!