If corrosion is present, DINITROL ML or a DINITROL cavity wax shall be applied before. DINITROL 4941 / CAR can be applied directly to clean, dry and corrosion free surfaces.
The 12-Pack 1 Liter Cans DINITROL 4941 Black Rust-Proofing Undercoating Spray is an excellent fit for those looking to maintain their vehicle's underbody and protect it from rust.
