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SS Repel Block WB-75

Greener Product

SS Repel Block WB-75 is a 7.5% active water–based siloxane/silane water repellent and impregnating agent for porous masonry surfaces such as concrete, block, brick, and unglazed tile. SS Repel Block WB-75 will penetrate and chemically bond deep within the substrate to provide long lasting protection against deterioration or staining due to water conditions. SS Repel Block WB-75 will not impair the natural breathing characteristics of treated substrates, nor will it produce a film. SS Repel Block WB-75 will help concrete and masonry surfaces to resist common issues such as cracking, efflorescence, spalling, staining, and other damages caused by intrusion of water.



  • Deeply penetrating porous surfaces, it provides superior water repellency, while allowing surface to breathe
  • Provides excellent resistance to mold, mildew, and fungus
  • Containing zero VOC’s and being solvent free allow for safe application in occupied buildings
  • Contains 0g/l VOC content making this product legal for sale to all regions of the U.S. and Canada

  • Superior efflorescence and strong alkali resistance compared to common solvent based acrylic sealers.



SS Repel Guard SB-40 is packaged and stocked in 1 and 5 gallon pails. (Also available in 55 gallon drums)


Coverage Rate

Application rate for new (unsealed) or old concrete 100-300 sq. ft. for the first coat and 100-300 sq. ft. for the second coat.

Technical Information Link

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