• Water Blocking Primer/Finish

    Water Blocking Primer/Finish

    Nothing can ruin masonry more than moisture penetration – and nothing smells worse than a damp, musty environment. Fortunately, Water Blocking Primer/Finish prevents this from happening by making interior masonry walls impenetrable to moisture while reducing odors. The end result is a uniform, quality finish that reduces odors and blocks moisture.

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      UL 2818
    Product Number Base Size*** MSDS PDS EDS Greenguard
    B72W08010 White 1 Gallon MSDS PDS EDS ✔ Certificate
    B72W08010 White 5 Gallons MSDS PDS EDS ✔ Certificate

    Although we've taken local and national VOC (volatile organic compound) regulations into consideration, such as the Ozone Transport Commission Specifications (OTC), because these regulations vary greatly around the U.S. and are subject to change, we suggest verifying that product selections meet the requirements of the area in which they are to be used.

    To learn more contact your local Sherwin-Williams Sales Rep or Call 800-524-5979.

    Surface Preparation

    Helpful information on how to properly prepare the surface you need to coat.

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    Primer Selection

    With many different primers specifically formulated for every interior or exterior substrate condition and desired result, our primer system makes it easy to choose the right primer for every job.

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    Cover Your Bases

    Improve the accuracy of your colors with the right gray shade of undercoat.

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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.