• We are Michigan’s Conproco Kiosk Distributor – Now matching Matrix, RePoint Mortars, and ISR CM cement patch!!!

  • Serving the Metro Detroit area since 1983!

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  • Current Specials: Prosoco Siloxane WB Concentrate 1gal – $250.00

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  • New Ownership – Proudly Owned and Operated by long-time manager, Aaron Fortin

303S 15%

303S 15%


303-S Siloxseal Siloxane Water Repellent is formulated to protect against the intrusion of moisture that causes efflorescence, leaching, mildew, atmospheric staining and freeze/thaw cycles.

SKU: 303S 15% Categories: ,



  • Effectively resists the effects of acid rain and carbon buildups
  • Ideal for concrete flatwork, parking ramps, stadiums and vertical concrete surfaces
  • Reduces migration of sodium chloride ions through cement thereby reducing corrosion of rebars in reinforced concrete
  • Formulated for low-pressure spray application


  • May not be suitable for some types of natural stone, limestone & marble
  • Not suitable for surfaces to receive paints or coatings
  • Must be applied above 40ºF


Additional information


1gal-$41.00, 5gal-$166.00

Delivery and Returns Content description.