The vast majority of construction machinery is field operation, and good rust protection can effectively extend the service life of the whole machine. The molecular weight of the resin used for powder coatings is larger than that of solvent based coatings, so the physical and mechanical properties and chemical resistance of the film are better than that of solvent based coatings. Shengmeiao coating is plump and has strong corrosion resistance. It is widely used in bulldozers, excavators, presses, loaders and other construction machinery.