Dow Corning DOWSIL CWS Sausages

Our #1 Performing Sealant - Dow Corning CWS

Dow Corning ® Contractors Weatherproofing Sealant (CWS) is a one-part, moisture cure, medium modulus sealant that provides durable, flexible, watertight joints and offers outstanding unprimed adhesion to most non-porous substrates. It is specifically developed for sealing dynamically moving joints. Adhesion to aluminum, stone, vinyl, acrylic, and polycarbonate. Primer required for certain odd substrates. This unique, weather-resistant CWS formulation is ideal to withstand adverse conditions, including moisture, movement, sheer and deflection, in common installations. The CWS is easily gunnable in all weather conditions from -20 to 120°F (-29 to 49°C). Because the CWS 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 colors, 50 made-to-order special colors through Dow Corning's Color It Right program with a virtually unlimited palette of custom colors.

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
• 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.)

Dow Corning now delivers silicone performance at urethane-competitive prices. Dollar for dollar, you can’t get better performance for the price than with Dow Corning® Contractors Weatherproofing Sealant (CWS). Unlike organic urethane products, silicone sealants:

• Are virtually unaffected by UV light, ozone, rain, snow or temperature extremes
• Stay flexible and maintain adhesion, even while being stretched or compressed
• Will not crack, split or tear

Sold by the case. 16 per case.

*please add 10% to price if ordering less than full case

Dow Corning CWS Color Chart

• Also available but not pictured
  • Champagne
  • Natural Stone
  • Hartford Green

Dow Corning CWS MSDS Sheet

Dow Corning CWS Spec Sheet

Application for Dow Corning Performance Warranties

Dow Corning LEED Letter

You may also be interested in Dow Corning CWS Tubes and Dow Corning Tub, Tile, & Ceramic Silicone Sealant