Our Iron Powder Remover contains Citric Acid, Sodium Carbonate, Disodium EDTA. It can quickly dissolve the stubborn rust, so that the surface is clean and smooth, can remove the rust at the same time to form a protective film, prevent the metal from rusting again, extend the service life of the object. Its use method is very simple: clean the metal surface, spray the product evenly on the desired part, clean with a brush or towel, and finally rinse with water. It can quickly and effectively eliminate rust on different metal surfaces, which is very suitable for industry, homes and automobiles.