Derusting and antirust liquid is a kind of high-performance products with the functions of derusting and antitrust, which can also form a macromolecular adhesion structure like paint. Without applying traditional complex working process for derusting and antirust, you only need to conduct simple coating, spraying or soaking at ambient temperature to complete derusting and anti-corrosion synchronously. Due to the unique design, this product has strong penetration capacity, which can rapidly and effectively dissolve the oil stain usually seen on the metal surface and meanwhile and convert the rust into an anti-corrosive layer of metal protective film to achieve excellent effects of derusting and antirust.