Formulated to clean and neutralize battery acid. Wipes remove corrosion from terminals, connectors and trays. If heavily corroded - after using wipes, a light scrubbing with a plastic bristle brush will remove corrosion with no messy foam.Contains acid neutralizing agents. KOLOR-SAFE® system lets you know when the acid is neutralized. This Product has a shelf-life and expiration date of 3 Years.