J-B Weld HighHeat Syringe Epoxy- 25 ml
J-B Weld HighHeat Syringe Epoxy- 25 ml
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J-B Weld HighHeat Syringe Epoxy- 25 ml

Key item features

  • Extreme Heat Resistance: This two-part epoxy system withstands temperatures up to 550°F, providing durable, heat-resistant repairs.
  • Superior Bond Strength: Achieves a high tensile strength of 4730 PSI, forming a permanent and robust bond.
  • Rapid Setting Time: Sets in just 1 hour at room temperature, with an accelerated cure time of 1 hour when exposed to 250°F heat.
  • Versatile Material Adhesion: Effectively bonds to a wide range of materials including metal, stone, brick, ceramic, fiberglass, and more.
  • Chemical Fuel Resistant: Once cured, the dark gray epoxy offers resistance to various chemicals and fuels.
  • Convenient Syringe Application: Packaged in a 25 ml syringe for easy and precise 1:1 mixing and application.
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Current price is $7.49
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About this item

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Customer ratings & reviews

4.7 out of 5 stars
stars235 ratings98 reviews
How item rating is calculated
  1. 5 stars81% (191)
  2. 4 stars11% (27)
  3. 3 stars2% (5)
  4. 2 stars2% (4)
  5. 1 star3% (8)

Reviews summary

Pros

  • : Holds securely in various conditions.
  • : Cures quickly with heat application.
  • : Comes in a syringe for easy application.
  • : Mixing process is straightforward.

Neutral

  • : Can be quick, but may require patience and effort in some cases.
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Showing 1-3 of 98 reviews

Jun 2, 2026
Sherry
Top Reviewer
Item details
Size: 1
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Easy to use on small tailpipe leaks.

JB Weld is easy to use for small holes in a tailpipe. I could have used a little more than what was supplied I had to order an additional tube, but I didn't mind because it seems to be holding and has stopped the leak.

Helpful?2SC3RPCPN9UU1208610121
Nov 3, 2025
Janis
Top Reviewer
Item details
Size: 1
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Amazing Product

This Is Some Super Great Bonding Agent, Easy To Mix and Place where it Needs To Go. I used It to Repair My Cracked Grill in Two different places. After Sanding %26 Painting over the Areas I Repaired You Can't See it was Repaired there. Easy Instructions to Comprehend. Easy To Use and Doesn't Run if mixed Properly.

Helpful?2SC3RPCPN9UU1208610121
Jan 2, 2026
gjon
Item details
Size: 1
Count per pack: 1
5 out of 5 stars review

Verified Purchase

good stuff

does what it is intended for but a bit messy smelly and dries fast.where a mask i did not like a doe doe bird.

Helpful?2SC3RPCPN9UU1208610121