Description: F9 BARC Rust and Oxidation Remover is a non-abrasive and non-flammable cleaner that's concentrated and formulated to go a long way on concrete, bricks pavers, tile, asphalt, and concrete coatings. It quickly and easily removes orange battery acid burn, rust, and fertilizer stains. It can restore concrete to its natural bright gray color and does not lose strength over time. It does not involve any mixing, brushing, or messy pastes and it's even safer to people and plants than even hydrochloric acid. It will leave your toughest jobs cleaner than ever with minimal mess!