Water repellent for masonry surfaces (SS WR 100) is an aqueous solution of Potassium methyl Siliconate, water dilutable having slightly yellowish appearance used for the impregnation of mineral construction materials to make them water-repellent without significantly reducing water vapor permeability. SS WR 100 provides its water repellent properties by reaction with atmospheric carbon dioxide.
Treatment with potassium methylsiliconate prevents efflorescence of salts absorbed and makes cleaning of the tiled floor easier. Low fired clay products such as roof tiles, bricks, unglazed floor tiles absorb water and the soluble salts are transported to the surface, disfiguring the product. Damage caused to the wet substrate/ clay product due to growth of moss, lichen and algae is also a common problem spoiling the beauty of the facade. All the above phenomena are observed only if the masonry surface remains wet. They will be eliminated if one can prevent or at least reduce water absorption. Water resistance is an important factor in concrete and masonry construction for safety, health and comfort of building occupants.
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