DOWSIL Contractors Weatherproofing Sealant Sausage

DOWSIL™ CWS is a high-performance silicone weatherproofing sealant designed for demanding exterior building envelope applications.

It provides durable, flexible sealing for curtainwall systems, window perimeters, expansion and control joints, and other weatherproofing applications where long-term movement capability and resistance to exterior conditions are required.

The silicone formulation provides excellent resistance to weathering, UV exposure and temperature extremes while maintaining flexibility throughout its service life. DOWSIL CWS adheres to a wide range of common construction substrates and is designed for professional glazing and building envelope applications.

The sausage format is well suited for larger projects and higher-volume applications, offering efficient dispensing and reduced packaging waste compared with conventional cartridges.

Available in multiple colours to suit different glazing and exterior façade requirements.

Features

• 100% silicone, neutral-cure formulation
• Excellent resistance to UV, rain, snow and weathering
• Strong adhesion to many common construction substrates
• Remains flexible to accommodate joint and building movement
• Suitable for interior and exterior applications
• Wide application temperature range
• Excellent performance through temperature extremes
• One-component formulation — no mixing required
• Sausage packaging is efficient for high-volume professional applications
• Reduced packaging waste compared with traditional cartridges
• Ideal for building-envelope and commercial construction applications

Common Applications

• Window and door perimeter sealing
• Curtain wall and façade joints
• Expansion and control joints
• Building-envelope penetrations
• Exterior weathersealing
• General construction joints