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KEMINJECT WB is an aqueous solution of Innovative siliconate resin and is used in diluted form for impregnation mineral construction materials to make them water-repellent. KEMINJECT WB develops its water-repellent properties by reaction with atmospheric carbon dioxide (CO2). The active substance formed from the silicone masonry water repellent is polymethylsilicic acid. As with all siliconates, however ,KEMINJECT WB can cause a white deposit on the surface of colored construction materials.