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US 4,273,813 AGranted
Method of providing waterproof coating for masonry walls
AssigneeDow Corning Corporation
InventorMichael D. Meddaugh
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AssigneeDow Corning Corporation
InventorMichael D. Meddaugh
Estimating the term…
A simplified method of waterproofing masonry walls such as basement walls subjected to water from the outer surface by coating the inner surface with an anionic silicone emulsion that dries to produce an elastomeric film is disclosed. The silicone emulsion consists essentially of an anionically stabilized hydroxyl endblocked polydiorganosiloxane, amorphous silica, and an organic tin salt, the emulsion having a pH of 9 or greater. The emulsion coating when dried provides an elastomeric film that bonds to the surface with sufficient force to resist the pressure of any water that may diffuse through the wall from the outer surface. The method of this invention provides a waterproof coating that also resists the effects of cracks in the substrate, temperature extremes, molds, fungus, or mildew, as well as possessing a long useful life.
A method of waterproofing a masonry wall to prevent liquid water from passing through the wall, said masonry wall having at least two surfaces, an inner surface and an outer surface, said outer surface being in a location which allows exposure to hydrostatic pressure from ground and surface liquid water, said method comprising
Dependencies are inferred from the claim text.