• Water Blocking Primer

    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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      UL 2818

    Sizes ***

    1 Gallon, and 5 Gallons


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    Paint Can Wet Paint

    Exterior Painting How-To’s

    Information on the steps of a successful painting project: Planning, Preparing, Painting, and Clean-up.

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    Paint Can Wet Paint

    Color Selection Tools

    We have many tools to help you find the perfect color for your project.

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    Paint Can Wet Paint

    Paint Calculator

    Find out how much paint you will need by using our online paint calculator.

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    Product Data Sheets

    A Product Data Sheet is available for technical information about this product line. This document includes details such as dry time, surface preparation, coverage area, and other information you would find on the product label.

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.