• Water Blocking Primer

    H&C® Basement & Masonry Waterproofer is a thick, textured coating ideal for interior or exterior surfaces, above or below grade. It withstands hydrostatic water pressure up to 10 psi, more than double what the industry requires. Tintable up to 2 ounces of colorant to fit your decorative needs! It not only stops unsightly water stains, this product is also easy to clean up with just soap and water.

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    • Options

      Product Number

      • 1 Gallon(s)
      • White
    Sales Number Description Greenguard

    Product Features

    • Interior or exterior use
    • Twice the level of protection required by industry standards
    • Excellent sealing properties against hydrostatic water pressure
    • No thinning necessary
    • Can be topcoated with any latex paint
    • For vertical surfaces only
Not all colors are available in all product lines. See store for details.
Not all sizes available in all areas.
Due to individual computer monitor limitations, colors seen here may not accurately reflect the selected color. To confirm your color choices, visit your neighborhood Sherwin-Williams store and refer to our in-store color cards.