RustSeal is a single part, 100% non-porous, ready-to-use, high-solid content, rust preventive coating, that is strengthened by exposure to moisture. RustSeal is impervious to road salts and most every chemical. RustSeal flows out to a beautiful, rock-hard, tough coating that is tough to chip or scratch. These exceptional properties make RustSeal specifically formulated to prevent corrosion and stop rust. RustSeal completely seals metal surfaces, blocking all the pores and preventing penetration of moisture, oxygen, and water vapor. Unlike other corrosion treatments, RustSeal is an enhancement that lasts. Water and air are locked out, therefore oxidation, the precursor to rust, cannot take hold.