CCGF 411.3-2015 "Architectural exterior coatings" stipulates the technical requirements, performance standards and application specifications of architectural exterior coatings. The Coating is widely used in the protection and decoration of building facades, which can effectively prevent the erosion of the external environment on the wall and improve the aesthetics and durability of the building. The standard details the composition of Coating, weathering resistance, stain resistance, water resistance, adhesion and other key performance requirements, and puts forward clear guidance on the construction method of Coating, Coating thickness, quality control, etc. Through the implementation of this standard, it aims to ensure the mass and performance of exterior coatings, promote the application of green environmental protection materials, and improve the technical level and standardized development of architectural exterior painting.