AMMO - Avoid Menacing Metal Oxidation - 1 oz. Impervious to Salt, Acids, Oxidation, Oils, Rust, and Corrosives. Low surface tension. Does not leave an oily residue. Can be used on Cast Iron, stamped and cast metals, aluminum and more! Will not harm or alter the finish of the part it is used on. Moisture stands on surface and cannot penetrate AMMO's protective barrier.