Heat-Resistant DOWSIL™ Sealants: Made to Perform Under Extreme Temperatures
In high-temperature environments, standard sealants can’t always hold up. That’s where DOWSIL™ heat-resistant sealants come in. Engineered by Dow, these advanced silicone formulations are trusted in demanding industries for their durability, flexibility, and long-lasting performance under extreme heat.
Here’s a breakdown of three standout products in the DOWSIL™ high-temp line and what makes them essential for industrial and commercial use:
This one-part silicone sealant is formulated with iron oxide to endure intense heat exposure. It is ideal for situations where components must withstand continuous high temperatures without compromising the seal.
APPLICATIONS:
- Fired heaters
- Access doors and flanged pipe joints
- Flues on gas appliances
- Appliance heating elements
FEATURES:
- Withstands continuous temperatures up to 500°F (260°C), and intermittent peaks up to 550°F (288°C)
- Remains flexible and resists cracking, shrinking, and chalking
- Strong adhesion and weather resistance
- Fast curing with high-strength
DOWSIL™ 736 Heat Resistant Sealant
DOWSIL™ 736 is a non-slumping silicone sealant designed for bonding and sealing surfaces exposed to temperatures as high as 600°F (316°C). It’s especially suited for vertical or overhead applications for sag resistance.
APPLICATIONS:
- Electrical enclosures and connections
- Sealing and insulating heating elements
- Aerospace gasket
- Moving oven belts
- Bag filters on smokestacks
FEATURES:
- Resists sag and run
- One-component silicone
- MIL-A-46106B and FDA/NSF compliance
- Excellent high-temp durability and electrical insulation
DOWSIL™ Q3-1566 Heat Resistant Adhesive / Sealant
Formulated for high-temp resistance and superior adhesion, DOWSIL™ Q3-1566 cures at room temperature and forms a strong, flexible bond.
APPLICATIONS:
- Ovens, cookers, and other heating equipment
- Automotive and other coolant sealing applications
- Electrical and other high-heat sealing scenarios
FEATURES:
- Can withstand –58°F to 572°F (–50°C to 300°C), with peak tolerances up to 662°F (350°C)
- Non-sag, paste consistency
- Maintains flexibility across wide temperature ranges
- Unprimed adhesion on glass, metals, and most common plastics
Each DOWSIL™ sealant is designed to perform in specific high-temperature scenarios. Whether you need a general-purpose sealant for heating appliances or an advanced formula, DOWSIL™ has a solution.
To order any of these DOWSIL™ products or to find the right sealant for your application, email Orders@LentusLLC.com or call 270-765-2212.
