What is color steel plate

Common coatings for color-coated steel sheets are polyester (PE), followed by silicon-modified resin (SMP), polyvinylidene fluoride (PVDF), etc. The coating structure is divided into two-coating and one-baking and two-coating and two-baking. The thickness is generally 20-25u on the surface and 8-10u on the back. The external use of buildings should not be lower than 20u on the surface and 10u on the back. The commonly cited standards for color-coated steel sheets are American ASTM A527 (galvanized), ASTM AT92 (galvanized), JIS G3302, EN/0142, Korean KS D3506, and Baosteel Q/BQB420.
Color-coated steel plate is a product made of cold-rolled steel plate, electro-galvanized steel plate, hot-dip galvanized steel plate or galvanized steel plate as the substrate, after surface degreasing, phosphating, and complex salt treatment, and then coated with organic paint and baked. . The hardness of the coating film, as well as good non-challenging properties, gloss retention and flexibility are limited. The service life is 10-15 years.