LEED document
Dow Corning® Contractors Weatherproofing Sealant
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Medium-modulus silicone joint sealant
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 nonporous substrates.
It is specifically developed for sealing dynamically moving joints.
The sealant is easily gunnable in all weather conditions from -29 to 49°C (-20 to 120°F).
Because it requires no mixing and a smaller joint ratio, it is an economical, high-performance alternative to other sealant options with a ±40 percent movement capability.
Dow Corning Contractors Weatherproofing Sealant meets or exceeds the requirements of:
- ASTM C 920, Type S, Grade NS, Class 35, Use NT, M, A, and O (granite).
It is specifically developed for sealing dynamically moving joints.
The sealant is easily gunnable in all weather conditions from -29 to 49°C (-20 to 120°F).
Because it requires no mixing and a smaller joint ratio, it is an economical, high-performance alternative to other sealant options with a ±40 percent movement capability.
Dow Corning Contractors Weatherproofing Sealant meets or exceeds the requirements of:
- ASTM C 920, Type S, Grade NS, Class 35, Use NT, M, A, and O (granite).
| Product # | Finish/Color | Volume | Packaging Specifications |
|---|---|---|---|
| SACWSBL | Black | 305 ml | Plastic Cartridge |
| SACWSBLSG | Black | 591 ml | Sausage |
| SACWSBR | Bronze | 305 ml | Plastic Cartridge |
| SACWSBRSG | Bronze | 591 ml | Sausage |
| SACWSGSG | Gray | 591 ml | Sausage |
| SACWSASG | Satin Aluminum | 591 ml | Sausage |
| SACWSW | White | 305 ml | Plastic Cartridge |
| SACWSWSG | White | 591 ml | Sausage |
ADVANTAGES AND BENEFITS
- Primerless on most common nonporous building substrates.
- Balanced adhesive strength, medium modulus and high recovery.
- Easily gunnable in all weather conditions.
- Balanced adhesive strength, medium modulus and high recovery.
- Easily gunnable in all weather conditions.
TECHNICAL SPECIFICATIONS
Brand
Dow Corning
Base
100% RTV Silicone
Optimal Adherence to
Masonry, Concrete
Features
Neutral Cure
Recommended Use
Expansion Joints, Aluminum Windows, Wood Windows, Curtain-Window Wall Systems, Vinyl/PVC Windows
Tack-Free / Skin Over Time
3 to 6 hours
Tooling Time
Immediately tool the sealant
VOC Concentration (EPA Method 24)
35 grams per liter
SUGGESTED PRODUCTS
- Applicator Guns for Sealant, Caulking, and Glue Cartridges
- Skeleton Applicator Guns for Sealant Cartridge, Caulking, and Glue
APPLICATION
Sealing dynamically moving joints such as expansion and control joints, concrete panel joints, tilt-up panel joints, curtainwall joints, perimeter caulking (windows, doors, panels, EIFS, bedding of mullions, panels, and frames, etc.).
IMPORTANT INFORMATION
This product is neither tested nor represented as suitable for medical or pharmaceutical uses.
Dow Corning Contractors Weatherproofing Sealant is not recommended for:
* Silicone structural glazing
* Application in confined areas without proper ventilation
* Joints under constant water submersion
Dow Corning Contractors Weatherproofing Sealant is not recommended for:
* Silicone structural glazing
* Application in confined areas without proper ventilation
* Joints under constant water submersion
