A penetrating, clear, and breathable water repellent for use on exterior above-grade concrete, brick and concrete masonry units, and some natural stones plus Parking Structures and Pre-Cast Concrete.

It penetrates the surface and bonds chemically to the substrate, resulting in permanent attachment of the water repellent molecule. Sealmaster 100% will not discolor or change the surface appearance in anyway.

Sealmaster Components

KELMAR® Sealmaster 100%

KELMAR® Sealmaster 100% is a solvent-free water repellent based on a monomeric silane. Sealmaster 100% is used as a priming and impregnating agent for normal and reinforced concrete in bridges, roads and buildings.


  • Greatly delays chloride and water absorption by concrete
  • Reduces erosion of concrete due to frost / road salt attack
  • Highly resistant to alkalis
  • Good depth of penetration
  • Low volatility
  • Solvent free

Click here to view KELMAR® Sealmaster 100% Technical Data Sheet PDF.

Repair Products

Please contact us for details

Tender / Submittal package

Call us at 1.800.387.5703 or submit the following request for us to send you out a Tender / Submittal package: