Waterproofing system for water-penetrable construction surfaces
AssigneeW.R. Grace & Co.-Conn.
InventorsJames M. Gaidis, Robert A. Wiercinski, Susan G. Ehrlich
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Abstract
Disclosed are compositions and methods of reducing water penetration through civil engineering structures which methods comprise applying to the structures a waterproofing agent pretreatment composition including SBR latex, SBS latex, natural rubber latex, polybutadiene latex, polychloroprene latex, polyvinyl acetate latex, nitrile latex, or combinations thereof, and optionally may include various freezing point depressing agents to enable use of the compositions and methods at or below 25.degree. F. Also disclosed are packages including the latex-containing waterproofing agent pretreatment compositions and waterproofing agents.
Claims8
A waterproofing package, comprising:
- an aqueous-based waterproofing pretreatment composition operative to strengthen adhesion between a water penetrable surface having dust particles thereon and the pressure sensitive adhesives of a sheet-like waterproofing laminates, said composition including SBR latex, SBS latex, natural rubber latex, polybutadiene latex, polyvinyl acetate latex, or a combination thereof, and further including from 1% to 70% by weight solids and a surfactant;
- and
- a sheet-like waterproofing laminate comprised of a support film and pressure sensitive adhesive, said laminate operative to adhere to a surface pretreated with said composition.
Dependencies are inferred from the claim text.