Dow Contractors Weatherproofing Sealant (CWS) - 10.3 Fluid Ounce Cartridge

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Dow Contractors Weatherproofing Silicone Sealant (CWS) Black - 10.3 Oz. Cartridge CWSBL

$5.53 each

12 or more|$5.41 each

10.3 fluid ounce cartridge
Primerless and applies to most non-porous building substrates
Strong adhesive strength and flexible while able to stand up to weather extremes
One part neutral-cure economical alternative to many other similar sealants
Self-priming to most common building substrates, including most fluoropolymer-based paints
Case quantity: 12 cartridges
Pallet quantity: 108 cases
1,296 cartridges per pallet

SKU:

CWSBL

In Stock

Color Chart

Return Policy | Shipping Policy

Product Overview

Dow Contractors Weatherproofing Sealant (CWS) (formerly Dow Corning Contractors Weatherproofing Sealant) is a one-part, moisture cure, medium modulus silicone sealant that provides durable, pliable, watertight joints and offers outstanding adhesion without priming to most non-porous substrates. With its unique weather-resistant formula, it possesses a balanced adhesive strength and very high recovery, making it ideal to withstand adverse weather conditions in common installations including moisture, movement, sheer, and de-flection. It is easily gunnable in all weather conditions from -20 to 120 degrees F. Because our Dow contractors weatherproofing silicone caulking requires no mixing and a smaller joint ratio, it is an economical, high-performance alternative to other comparable sealants with a ±40 percent movement capability.

Applications

Alodine Aluminum
Aluminum
Anodized Aluminum
Brickwork
Ceramic
Concrete
Enameled & Reflective Glass
Extruded Mill Finish
Fluorocarbon Coated Aluminum
Glass
Granite
Heat Strengthened Glass
Light-Weight Stone Panels
Limestone
Low E Coated Glass
Marble
Masonry
Metal
Metal Panels
Paint
Plastic
Polyester Powder Coated Aluminum/Steel
Stainless Steel
Steel
Stone
Vinyl/PVC-U
Viny to vinyl
Wood
Most non-porous building substrates
Expansion joints
Control joints,
Concrete panel joints
Tilt-up panel joints
Curtainwall joints
Perimeter caulking around windows, doors, panels, EIFS, bedding of mullions, panels, and frames, etc.

Limitations

Silicone structural glazing
Application in confined areas without proper ventilation
Joints under constant water submersion

This product is neither tested nor represented as suitable for medical or pharmaceutical uses.

Additional Resources

Color Chart

Data Sheet

CWS Aluminum SDS

CWS Anodized Aluminum SDS

CWS Antique White SDS

CWS Precast White SDS

CWS Sandalwood SDS

CWS Sandstone SDS

CWS White SDS

CWS Window Bronze SDS

Appying Dow Contractors Weatherproofing Sealant

Selection

SKU	Color	Case Qty
CWSBL	Black	12
CWSS	Sandstone	12
CWSBRZ	Bronze	12
CWSAL	Aluminum	12
CWSAAL	Anodized Aluminum	12
CWSL	Limestone	12
CWSWBRZ	Window Bronze	12
CWSW	White	12
CWSGRY	Gray	12
CWSCH	Charcoal	12
CWSOW	Off-White	12
CWSPW	Precast White	12
CWSAW	Antique White	12
CWSSW	Sandalwood	12

Product Specifications

Brand	Dow
Series	CWS
Container Size	10.3 fl. oz.
Container Type	Cartridge

Composition	High-performance, medium modulus, one-part, neutral-cure silicone sealant
Paintable	No
Primer needed	None to most substrates
Full adhesion	14-21 days
Tack-free time	3 - 6 hours at 50%RH
Curing time	7 - 14 days at 77 degrees F at 50% RH
Application temperature (substrate) range	-20 to 120 degrees F
Joint movement capabilities/expansion-compression	±40%
Peel strength	20 - 28 pounds per inch
Surface temperature, cured bead	-40 to 250 degrees
Shelf life	18 months from manufacturing date

Dow Contractors Weatherproofing sealant may be used on concrete, but the surface needs to be primed with Dow Primer P prior to application. It is recommended that an adhesion test be performed on a small section of concrete to ensure that the bond is within specifications of your project.