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Urethane Busters


Dow Corning® Contractors Weatherproofing Sealant


Medium-modulus 100% silicone joint sealant

FEATURES

  • Primerless on EIFS and most common nonporous building substrates, including glass and aluminum.

  • Balanced adhesive strength, medium modulus and high recovery.

  • Excellent all-weather gunnability and performance.

  • Extension/compression capability of ±25 to ±40 percent.

  • Available in 10.3-ounce cartridges, 20-ounce sausages and two-gallon pails.

  • 5-Year Weatherseal Limited Warranty

APPLICATIONS

  • Dynamically moving joints such as expansion and control joints

  • Concrete panel joints

  • Tilt-up panel joints

  • Curtainwall joints

  • Frame-to-structure and perimeter caulking (windows, doors, panels, EIFS, radon mitigation, bedding of mullions, panels and frames, etc.)

DESCRIPTION

This unique, weather-resistant formulation is ideal to withstand adverse conditions, including moisture, movement, sheer and deflection, in common installations. It is easily gunnable in all weather conditions from -20 to 120°F (-29 to 49°C). Because it requires no mixing and a smaller joint thickness requirement, it is an economical, high-performance alternative to other sealant options with a ±25 to ±40  percent movement capability. CWS is available in 20 standard stocked colors, 19 made-to-order special colors and a virtually unlimited palette of custom colors .

Dow Corning Contractors Weatherproofing Sealant is available in sausages, cartridges and pails.
Dow Corning Contractors Weatherproofing Sealant is available in sausages, cartridges and pails.

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Dow Corning CWS provides excellent unprimed adhesion to EIFS and many nonpourous substrates, including glass and aluminum.
Dow Corning CWS provides excellent unprimed adhesion to EIFS and many nonpourous substrates, including glass and aluminum.

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