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J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

4.6 out of 5 stars 4,115 ratings

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  • HI TEMP RED SILICONE GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist.
  • THE ORIGINAL COLD WELD: JB Weld was developed as an alternative to torch welding. Designed to be effective in extreme environments, once it sets, it creates a permanent bond stronger than steel.
  • EASY TO USE: Curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering and is sensor safe.
  • VERSATILE & DEPENDABLE: Ideal for automotive, metal, oil pans, exhaust manifolds, water pumps, timing covers, differential covers, drive housings and oven doors.
  • DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond.

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Product description

J-B Weld Hi-Temp Red Silicone Gasket Maker & Sealant is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist. Upon curing, which occurs when the product is exposed to the moisture in air, the silicone forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering, is sensor safe and is great for many automotive applications.



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Most helpful customer reviews on Amazon.com

Amazon.com: 4.3 out of 5 stars 621 reviews
Brenna M. Olson
5.0 out of 5 stars Satisfied! Good for rednecking vehicle repairs.
3 June 2018 - Published on Amazon.com
Verified Purchase
54 people found this helpful
Elbeau
4.0 out of 5 stars Stays flexible. Doesn't Let Go
22 May 2019 - Published on Amazon.com
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38 people found this helpful
E. Heinrich
1.0 out of 5 stars First squeeze of tube pushed silicone out the wrong end
29 July 2019 - Published on Amazon.com
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26 people found this helpful
Steve Day
5.0 out of 5 stars Perfect for leak-proof gaskets or electrical isolation on vehicles and general repairs.
16 April 2019 - Published on Amazon.com
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18 people found this helpful
Chicago John
5.0 out of 5 stars Good value and quality
21 January 2017 - Published on Amazon.com
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26 people found this helpful