Siloxane Penetrating Water Repellent

WEATHER-GUARD is a siloxane penetrating sealer designed specifically for the treatment of masonry materials and concrete surfaces. WEATHER-GUARD protects concrete and masonry surfaces from the effects of exterior exposure and weathering.  WEATHER-GUARD penetrates deep into the surface pores and reacts chemically to provide a durable, long lasting barrier against water and salt intrusion. This level of protection can substantially reduce the damaging effects of freeze/thaw cycling, precipitation, acid rain, efflorescence, and dust/dirt degradation.


Features & Benefits

  • Deep penetrating pore action for long lasting protection
  • Preserves a natural appearance without membrane build-up
  • Provides a highly efficient barrier to water and salt ingress
  • Allows concrete and masonry surfaces to maintain breathability while providing high water repellency characteristics
  • Easy to use requiring only low pressure spraying equipment
  • Economical due its durability over many years


  • Concrete and masonry block
  • Natural stone
  • Brick facings
  • Precast concrete
  • Clay brick
  • Exposed aggregate
  • Stucco
  • Architectural concrete

Specifications / Compliances

  • Complies with Federal AIM Rule VOC regulations


WEATHER-GUARD is available in 55 gal (208 L) drums, 5 gal (18.9 L) pails, and cases of 4/1 gal (3.8 L) units.