Sketch map of sectional structure of prepainted steel sheet
1.CRC(Base metal)Mainly responsible for stiffness and strength functions2.Zinc CoatingIt has the functions of corrosion resistance, heat resistance, weather resistance and machinability.3.Chemical CoatingImprove the adhesion function and anti-corrosion function of the coating and the substrate4.Primer CoatingEnhance the adhesion between the surface of the steel plate and the paint, and have the function of suitable color tone5.Top […]