Waterproofing sealer/repellent compositions for concrete, masonry and porous surfaces
OwnerPratim R. Patelinventor
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Abstract
The present invention relates to waterproofing sealer compositions that protect various types of porous substrates from deterioration due to water absorption and thus extend their useful lives. Example of porous substrate are concrete, brick, masonry, ceramics, stones, cloth, wood and the like. These waterbased compositions comprise alkali metalalkylsiliconates, alkali silicates, polymers, diluents and additives. These sealer compositions do not change appearance and character of the substrate surface.
Claims14
A waterproofing sealer/repellent composition (100 parts by weight) that protects and extends the life of porous substrate selected from the group consisting of concrete, masonry, wood, cloth, leather, stone and clay products, comprising:
- a. about 0.2 to 10 parts by wt. of polyurethane dispersions/emulsions;
- b. about 1 to 3 parts by wt. of aqueous alkalimetal alkylsiliconates;
- c. about 0 to 0.5 parts by wt. of alkali silicates;
- d. about 0.005 to 2 parts by wt. of additives;
- e. about 0 to 20 parts by wt. of diluents used as anti-freeze agents;
- f. the balance parts by wt. of demineralised water.
Dependencies are inferred from the claim text.