TheJB Weld Silicone Hi Temp is a high-performance RTV (Room Temperature Vulcanizing) silicone specifically designed for use in high-temperature environments. Ideal for sealing and bonding applications where high heat resistance is required, this Red Silicone can withstand temperatures up to 650F (343C), making it perfect for automotive and industrial use.

Key Features

• High Temperature Resistance: Withstands up to 650F (343C), perfect for automotive and engine repairs.
• Sensor Safe: Safe to use with oxygen sensors and sensitive engine components.
• Durable Seal: Forms a tough, flexible, and waterproof bond that resists cracking, shrinking, and weathering.
• Set Time: Begins to set in 1 hour, cures fully in 24 hours for a strong, lasting seal.
• Application Versatility: Ideal for sealing uneven surfaces and is resistant to oil, water, and most automotive fluids.
• Country of Origin: USA
• Commodity Code: 3506100000

Application Instructions

1. Prepare Clean and dry the surface area to remove any dirt, oil, or debris.
2. Apply Apply an even, continuous 1/4 bead of silicone to one surface. Make sure to surround all bolt holes.
3. Assemble Reconnect parts while the silicone is still wet.
4. Secure Hand-tighten until silicone begins to squeeze out of the joint.
5. Dry Allow to dry for 1 hour, then tighten an additional 1/2 turn.
6. Finish Trim excess cured silicone. Full cure occurs in 24 hours.

Ideal Uses

• Automotive applications: Engine components, exhaust systems, valve covers, oil pans, and thermostat housings.
• High-heat sealing: For gaskets, exhaust systems, and high-temperature engine parts.
• General sealing: Suitable for a variety of household, industrial, and repair tasks requiring high heat resistance.

Pack Dimensions

FAQs

Q1: Can this silicone be used for high-heat automotive repairs?
A1: Yes, the JB Weld Silicone Hi Temp is specifically designed for high-temperature environments, such as automotive engine components. It can withstand temperatures up to 650F.

Q2: Is this silicone safe for use around oxygen sensors?
A2: Yes, this silicone is sensor safe, making it suitable for use on parts sensitive to heat, such as oxygen sensors in automotive applications.

Q3: How long does it take for the silicone to fully cure?
A3: The silicone sets in 1 hour and fully cures in 24 hours. Ensure full cure before applying additional pressure or use.

Q4: Can I paint over this silicone after it cures?
A4: No, once fully cured, JB Weld Silicone Hi Temp is not paintable. The silicone will retain its color and finish.

Summary

JB Weld Silicone Hi Temp (85g Red) is an exceptional product designed for high-heat and high-performance sealing applications. Whether you’re working with automotive engines, exhaust systems, or need a weatherproof, flexible seal for high-temperature environments, this silicone offers a strong, permanent bond that resists the toughest conditions. With its easy-to-use application and quick setting time, it’s the perfect solution for your most demanding repairs.