Weatherseal for Porous Substrates Industry standard for concrete and masonry joints
High Flexibility Allows movement from +100/-50% of the original joint width
Extra Assurance Available with a 20-year limited weatherproofing warranty
Simply the Best-Performing Weatherseal for Stone, Concrete and Masonry Construction
For over 50 years, DOWSIL™ 790 Silicone Building Sealant has been the standard for weathersealing performance in new construction and renovation applications around the world, especially on stone and masonry surfaces. A neutral-cure, one-part sealant that quickly cures to a durable, flexible seal, its excellent movement capabilities (+100/-50 percent of the original joint width) make it ideal for sealing expansion and control joints, precast concrete panels and seismic joints, and EIFS joints. The wide range of colors available makes it easy to match your project.