MasonrySaver Waterproofing Products

MasonrySaver Extra Strength Water Sealant

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Product Datasheets

MasonrySaver Extra-Strength Water Sealant is a clear, solvent-based RTV silicone elastomer formulated for concrete block and other marginally porous masonry. This masonry sealant penetrates and fills pores to prevent water penetration through exterior walls exposed to normal weathering with minimal altering of the natural appearance.

This product's excellent UV stability provides long-lasting protection. MasonrySaver® Extra-Strength Water Sealant is an excellent choice for use over siliconized acrylic concrete stains to ensure a water-tight finish. It can also be used on smooth split-faced and ribbed concrete block, concrete brick, and fired brick clay.

MasonrySaver® Extra Strength Water Sealant is compatible with most oil-base paints and will cover between 40-80 square feet per gallon, depending on surface porosity and texture. Allow 24 hours to develop full, water-resistant properties.


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  • Technical Info
Size Approx. Weight Product Code UPC #
5 gal 37 lbs 300103 709057130059
30 gal 224 lbs 300096 709057130301
55 gal 402 lbs 300097 709057130554

  • Coverage Rate (all per gal) : 40-80 sq. ft. depending on surface porosity
  • Available Sizes: 5 gallon container, 30 or 55 gallon drum
  • Application Temperatures: Between 40-90° F
  • Application Method: Pump-up Sprayer or Airless Sprayer with tips between .011 and .015
  • Dry Time: 2-4 (Allow 4 hours before rainfall)
  • Cleanup: Mineral Spirits

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