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J-B Weld 8297 HighHeat 550 Degree Epoxy Putty Stick - 2 oz.

4.5 out of 5 stars 2,133 ratings

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  • HIGHHEAT: Is a hand mixable epoxy putty stick specifically formulated to bond and repair materials that will be exposed to high temperatures in automotive and industrial maintenance applications.
  • 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: This industrial-strength product outperforms conventional epoxy putties at high temps and sets in 1 hour. After 8 hours, it can be drilled, tapped, machined, ground, filed and painted.
  • VERSATILE & DEPENDABLE: Perfect for exhaust manifolds, mufflers, engine blocks, duct work & more. Tensile strength of 800 PSI. It is able to withstand heat exposure of 400ºF and intermittent to 550ºF.
  • 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

HighHeat is a hand mixable epoxy putty stick specifically formulated to bond and repair materials that will be exposed to high temperatures in automotive and industrial maintenance applications. It cures to a tough, hard bond with little to no shrinkage. This industrial-strength product outperforms conventional epoxy putties at high temperatures and sets in 1 hour at room temperature. After 8 hours, it can be drilled, tapped, machined, ground, filed and painted. HighHeat is rated at a tensile strength of 800 PSI and cures to a machine grey in color. It is able to withstand continuous heat exposure of 400ºF and intermittent heat exposure to 550ºF



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Most helpful customer reviews on Amazon.com

Amazon.com: 3.9 out of 5 stars 446 reviews
PIRATE19
5.0 out of 5 stars Works Great: Follow these instructions
20 April 2019 - Published on Amazon.com
Verified Purchase
30 people found this helpful
Christianjavyy
1.0 out of 5 stars Do NOT buy for Exhaust manifold
20 August 2019 - Published on Amazon.com
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17 people found this helpful
Tim & Maria
5.0 out of 5 stars Figured out where problems occur with this.... It's all user error.
10 May 2017 - Published on Amazon.com
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33 people found this helpful
Robert A. Gilliam
5.0 out of 5 stars Worked on a Car Radiator (for 3 1/2 months)
26 May 2017 - Published on Amazon.com
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26 people found this helpful
Forgivn
5.0 out of 5 stars Works GREAT!!! Surface prep is key
7 November 2020 - Published on Amazon.com
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6 people found this helpful