The coating of color-coated aluminum coils is divided into polyester-coated aluminum coils (PE) and fluorocarbon-coated aluminum coils (PVDF). The polyester coating formed on the surface of the aluminum plate after multiple baking and painting can form a firmly attached continuous solid film, which has the characteristics of protection and decoration. It is a UV resistant paint. Polyester resin uses a high molecular polymer containing ester bonds in the main chain as a monomer, and adds alkyd resin.
UV absorbers can be divided into matte and high-gloss series according to glossiness. It gives colorful aluminum products rich colors, good gloss, good smoothness, superior texture and feel, and adds a sense of layering and three-dimensionality. Color-coated aluminum coils can be protected from UV rays, wind, rain, frost, and snow; due to temperature differences, freeze-thaw cycles, corrosive gases, and microorganisms, the coating can play a protective role. Especially suitable for interior decoration and billboards.