J-B Weld Hi-Temp RTV Sealant & Adhesive
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J-B Weld Hi-Temp Red Silicone Gasket Maker & Sealant is a high-performance RTV silicone sealant designed for demanding mechanical applications. It creates a durable, waterproof seal that withstands continuous temperatures up to 285°C (545°F) and intermittent temperatures up to 340°C (644°F), making it ideal for automotive repairs, industrial equipment, and high-temperature gasketing needs.
add_circle The Upside
- check Excellent heat resistance for demanding mechanical applications
- check Versatile for automotive, industrial, and repair uses
- check Easy to apply with no special equipment required
remove_circle The Downside
- close Requires proper surface preparation for optimal adhesion
- close Limited color options (typically only red)
- close Curing time depends on humidity and temperature conditions
Specifications & features
Key features
- check_circle High-temperature resistance up to 285°C continuous / 340°C intermittent
- check_circle RTV silicone formula cures at room temperature with air moisture
- check_circle Forms waterproof, non-shrinking, crack-resistant seals
- check_circle Sensor-safe and weather-resistant for automotive applications
- check_circle Single-tube packaging for easy application
Specifications
Application
Gasket making, sealing, automotive repairs
Color
Red
Curing Method
Room Temperature Vulcanization (RTV)
Material Type
Silicone sealant
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