J-B Weld Hi-Temp Silicone Gasket Maker & Sealant, Red, 85g
High-temp silicone gasket maker resistant to 343°C. Ideal for automotive and mechanical seals. 85g tube.
The J-B Weld Hi-Temp Silicone Gasket Maker & Sealant is a high-performance RTV (Room Temperature Vulcanized) silicone ideal for creating robust seals in mechanical assemblies exposed to extreme heat. This 85g red sealant cures upon exposure to atmospheric moisture, forming a durable, waterproof bond on most surfaces without shrinking or cracking.
Engineered to withstand continuous temperatures up to 287°C (550°F) or intermittent heat up to 343°C (650°F), it excels in high-stress automotive and industrial applications. Its sensor-safe formulation ensures compatibility with oxygen sensors, while its resistance to weathering makes it suitable for both indoor and outdoor use.
Key Features
- High-temperature resistance (up to 343°C intermittently)
- Forms a waterproof, flexible seal
- No shrinkage or cracking after curing
- Resistant to weathering and vibration
- Sensor-safe for automotive applications
This versatile sealant adheres to metals, plastics, and rubbers, making it indispensable for gasket repairs, exhaust systems, and engine components. Reliable under pressure, it’s a must-have for DIY enthusiasts and professionals alike.
Free 24 Hour Delivery*
206 shoppers already locked free delivery today
Save on courier fees worth £6.99
- Automotive gasket repairs
- Exhaust system sealing
- Engine component assembly
- High-temperature mechanical joints
- Type: RTV Silicone
- Colour: Red
- Weight: 85g
- Temperature Resistance: 287°C (550°F) continuous, 343°C (650°F) intermittent
- Properties: Waterproof, flexible, non-shrinking
- Applications: Automotive, mechanical assemblies
- Sensor-Safe: Yes
- Shipping Weight: 109g
Documents
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website employs advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your basket and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll request you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
Recommended Products
Similar Products
You may like
