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Apr 24, 2018
"Breathe" silicone waterproof coating
Wall material absorbs moisture will cause serious damage to the wall itself, needs the moisture in the wall of a flow channel in the form of water vapor evaporation from the wall material. Therefore, reducing the water absorption of building materials, exterior wall materials given "breathing" function, is to improve the building decoration, waterproof important way. Silicone Coating with organopolysiloxane with certain reactive groups as the main film-forming material, its backbone structure has a strong chemical affinity, and a small amount of active groups on the molecules in the film forming process and silicon reactive with the hydroxy acid substrate. Coating the capillary channel should not be closed, the water within the substrate to diffuse outward in time, to ensure a good base "breathing" function. Sun et al examined the new "breathing" properties and water-resistant silicone coatings, prove that the coating can be used for exterior protection of high-grade buildings. In a building with a silicone resin film formed on the surface layer of material, which can effectively improve the performance of buildings surface weathering (weathering resistance, and acid rain soaking rain erosion capacity), especially for high-end architectural protection of ancient buildings it has a certain practical Value.