Our Automotive Iron Powder Rust Removal Spray contains inorganic acids, corrosion inhibitors, and surfactants.It removes iron powder and rust from cars, prevents the paint from rusting twice, converts rust into a protective film, and protects the original surface while removing rust.It is easy to use: firstly, keep the surface dry after cleaning, spray it on the rust, after that, wipe it with a sponge, and finally wipe it off with a clean cloth.After use, it can protect the metal surface from oxidation, restore the luster and prevent rust again.