"T/CECS 10302-2023 Sag resistance polyurethane waterproof coatings" standard specifies the technical requirements, test methods, inspection rules and Encasement marks of Sag resistance polyurethane waterproof coatings. The standard is applicable to Sag resistance polyurethane waterproof coatings used in construction projects, aiming to improve the waterproof performance and construction convenience of Coatings. The standard details the performance requirements of Coatings, including key indicators such as water resistance, weathering resistance, sag resistance, adhesion, etc., and specifies test methods and technical evaluation standards. The implementation of this standard helps to ensure the mass and construction effect of waterproof coatings, prolong the service life of waterproof coatings, and is especially suitable for environments that require high temperature and UV resistance.