Pinholes and shrinkage cavities are common defects in the use of powder coatings. Their presence not only affects the appearance quality of the products, but also seriously affects the mechanical properties and protective properties of the products. Most of the corrosion of the materials to be prote

This standard is mainly applicable to the surface coating of steel products. Where there is no special requirement in the contract documents, the surface coating of the products shall comply with the provisions of this standard.First, the surface treatment before paintingAll steel raw materials used

Will your metal products rust because of ultraviolet radiation or temperature or wet air?