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Potassium Methyl Siliconate ( Silicone Water Repellent )
DESCRIPTION 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.
TYPICAL PROPERTIES
Property Unit Value
Appearance Clear to slightly yellow Viscosity (by B5) cps Max 100
Solid content (Available) % 40 to 55
Specific Gravity 1.25 to 1.32
Flash Point, open cup °C >93
pH 13
Diluent Water
Specification Writers: These values are not intended for use in preparing specifications.
BENEFITS
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.
As with all siliconates, SS WR 100 can cause a white deposit on the surface of colored construction materials, or if used outside the application guidelines.
DILUTION
Add Mixture: 0.50% to 0.75% SSWR 100 by weight of Cement.
Strongly absorbent bricks: 1:20 to 1:30.
Concrete: 1:10
USABLE LIFE AND STORAGE
When stored bellow 45°C in the original unopened containers, SS WR 100 has a usable life of 12 months from the date of manufacturing
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