MasterProtect H 185 Concrete/Masonry Silane Sealer (5G) - MasterProtect H 185 High-Performance Sealer. Water-based Clear  Silane/Siloxane. For Challenging Masonry like Split-faced and Lightweight Block or CMU. VOC Compliant. 5-Gallon Pail. Price/Pail. (leadtime 2-4 weeks for <5 pail orders)
MasterProtect H 185 Concrete/Masonry Silane Sealer (5G)
$210.00 SALE $159.95
(Savings: $50.05)
 Buy 7 or more and pay $143.25 each (save $66.75) 
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MasterProtect H 185 High-Performance Sealer (formerly Enviroseal PBT). Water-based Clear Silane/Siloxane. VOC Compliant. 5-Gallon Pail. Price/Pail. (leadtime 2-4 weeks for less than 5 pail orders; 36 pails/pallet)


MasterProtect H 185 is a high-performance, water-based, clear drying, silane/siloxane sealer designed to provide long-term protection for the most challenging split-faced and lightweight block as well as standard CMU. VOC Compliant in all areas.


  • Excellent penetration
  • Moisture repellant
  • Breathable
  • Transparent, non-staining
  • One component
  • Provides long-lasting protection against moisture and chloride intrusion


  • Concrete Block: split faced, architectural, exposed aggregate, glass integally colored, or lightweight
  • Porous Concrete Surfaces


  • Vertical
  • Exterior or interior
  • Above Grade

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