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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.
How To Order
More information is available in the MSDS and Product Data Sheets at the bottom of the page.
Typical Properties
Application Temperature Range -29 Deg C to 49 Deg C
Color Aluminum
Color Anodized Aluminum
Color Antique White
Color Black
Color Bronze
Color Buff
Color Charcoal
Color Custom
Color Geographic Beige
Color Grey
Color Ivory
Color Light Bronze
Color Limestone
Color Mountain Fog
Color Off-White
Color Precast White
Color Redwood Tan
Color Sandlewood
Color Sandstone
Color White
Color Window Bronze
Durometer - Shore A 20 Shore A to 30 Shore A
Elongation = 550 %
Movement Capability -40 % to 40 %
Peel Strength 20 ppi to 28 ppi
Room Temperature Cure - Hours 168 Hours to 336 Hours
Service Temperature High = 121 Deg C
Service Temperature Low = -40 Deg C
Shelf Life = 540 Days
Tack-Free Time-50% RH = 360 Minutes
Tensile Strength = 180 psi
Volatile Organic Content = 35 g/liter
*These values are typical properties and are not intended for use in preparing specifications.
Data Sheet Downloads
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