Our car rust remosters contain cetyl polyether-9, methyl chloroisothiazolinone. It can remove iron powder, rust, clean quickly, prevent paint rust and anti-oxidation. Its use is simple: spray the product on the part that needs to be constructed. You can use a toothbrush to promote the dissolution of the oxide layer. Rinse with water. Dry with a towel. Protect the metal surface from oxidation, restore luster and prevent rust again.