Our Rust Remover contains Citric Acid, Sodium Carbonate, Disodium Edta. It can quickly react with the rust of the metal surface, effectively remove the rust layer, restore the smoothness of the metal surface, form a strong protective film on the metal surface, effectively isolate the air and moisture, prevent the metal from rusting again, and extend the service life. The method of use is very simple: spray an appropriate amount of this product on the rusty surface of the car, wait for a few minutes, and wipe the surface with the included towel. It can efficiently remove rust, quickly restore metal luster, and reduce coating peeling or discoloration caused by environmental factors.