Integrated finish paint with auxiliary heat-proof and'three-proofing 'functions and preparation method thereof

The invention relates to the technical field of external heat-proof materials, and discloses an integrated finishing coat with auxiliary heat-proof and'three-proof 'functions and a preparation method thereof. Comprising the following components in parts by weight: 50 parts of methyl vinyl MQ type silicon resin A, 5-20 parts of methyl vinyl MQ type silicon resin B, 50-70 parts of a basic polymer, 1-2 parts of an auxiliary agent, 15-30 parts of a reinforcing filler, 0-50 parts of silicon resin color paste, 0.5-3 parts of a mildew preventive, 10-20 parts of a hot melting material/phase change material, 4-6 parts of a cross-linking agent, 0.1-0.3 part of an inhibitor, 0.8-2.0 parts of a platinum catalyst and 150-300 parts of a diluent. According to the present invention, the components are subjected to mixing reaction to obtain the integrated finishing coat with auxiliary thermal protection and three-protection functions, such that the ablation resistance of the thermal protection material can be effectively impr