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PVDF coating is the first choice of fluoropolymer coating in construction, which is called PVDF fluorocarbon coating. In its resin system, it usually contains 70% PVDF resin and 30% acrylic resin, and also selects excellent weather resistant pigment, which is the preferred surface coating product in the metal building materials industry. PVDF fluorocarbon coating is mainly used in various aluminum building materials, including curtain wall aluminum plate, aluminum profile, window bar, ceiling, column, etc. its service life can reach more than 20 years. The base material must be treated before coating by cremation, generally, the construction technology of two coating, one drying, three coating one drying and four coats two drying is generally adopted.