---
product_id: 82260002
title: "8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey"
brand: "j-b weld"
price: "$18.67"
currency: USD
in_stock: true
reviews_count: 13
category: "J B Weld"
url: https://www.desertcart.us/products/82260002-8297-highheat-500-degree-epoxy-putty-stick-2-oz-grey
store_origin: US
region: United States of America
---

# Sets in 1 hour, fully cures in 8 hours 800 PSI tensile strength at room temp Withstands up to 500°F intermittent heat 8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey

**Brand:** j-b weld
**Price:** $18.67
**Availability:** ✅ In Stock

## Summary

> 🔥 Fix it once, fix it right — the high-heat epoxy pros swear by!

## Quick Answers

- **What is this?** 8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey by j-b weld
- **How much does it cost?** $18.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/82260002-8297-highheat-500-degree-epoxy-putty-stick-2-oz-grey)

## Best For

- j-b weld enthusiasts

## Why This Product

- Trusted j-b weld brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Set & Cure:** Ready to drill, tap, and machine in just 8 hours—fast fixes for busy pros
- • **Trusted & Proven:** Top-rated with 4.4 stars and thousands of users saving $$$ on automotive fixes
- • **Heat-Defying Strength:** 3x stronger than conventional epoxies at high temps—your ultimate high-heat repair ally
- • **Precision Application:** Hand-mixable putty stick molds easily for seamless, professional repairs
- • **Versatile Industrial Grade:** Perfect for exhausts, engine blocks, mufflers, and more—DIY with confidence

## Overview

J-B Weld 8297 HighHeat is a premium two-part epoxy putty stick engineered for high-temperature repairs up to 500°F intermittent heat. It delivers a robust 800 PSI tensile strength at room temperature and cures to a machinable, durable grey finish in 8 hours. Ideal for automotive and industrial maintenance, it bonds exhaust manifolds, mufflers, engine blocks, and more with 3x the heat resistance of standard epoxies, empowering DIYers and professionals to tackle tough repairs quickly and reliably.

## Description

J-B Weld High Heat Epoxy Putty High Heat 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. High Heat 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 400 degrees F and intermittent heat exposure to 500 degrees F. Use on: Automotive Metal And more Instructions 1. Cut: Remove required amount of putty. 2. Mix: Thoroughly knead putty with fingers to a uniform color. 3. Apply: Press putty firmly to the surface to be repaired. J-B Weld is proudly made in the USA

Review: Repaired my exhaust with this! Saved me $$$ - This stuff is great! I just used it to patch a cracked exhaust on our Toyota Corolla. I was about to invest 300 and parts plus an hour or two in labor. But when I inspected the exhaust closely from the Cadillac converter all the way back to the muffler. I noticed almost everything was in pretty good shape other than the one spot where there was a hairline fracture. Right after the joint, headed towards the muffler. On a whim, I decided to check on here to see what they had for muffler repair because I hadn’t been pleased with the local advanced auto had on the shelves. I found this and the JB weld muffler repair. I bought both, but I ended up going with this because I thought for my particular situation this would be the best. I’m glad I did. It was really easy to use. I prepped the area by wire brushing around the crack. And then using a rag with isopropyl alcohol to clean before applying. Wasn’t sure how much to use, but I put on a pair of latex gloves and cut approximately half the product to use. I mixed it with my hands while wearing the gloves until it was a uniform color and then I applied it to the crack all the way around the muffler. It was easy to apply and mold into the shape I wanted. It was only like 40° outside, so I propped up a heat gun from a distance and let that hit it for about an hour. After that, I didn’t start the car until the next morning but when I did, it sounded perfect again! So far I’m really happy. I haven’t driven the car much yet so I will keep the review updated. But so far I’m very pleased and hopeful based on other reviews. In my case, I would rate this an incredible value for the money!
Review: JB - Very good quality, works as described, it sticks very good

## Features

- J-B WELD HIGHHEAT: A hand mixable two part epoxy putty stick that is formulated to repair and rebuild materials that will be exposed to high temperatures in automotive and industrial maintenance applications. J-B Weld HighHeat is designed for DIY repairs on exhaust manifolds, tail pipes, mufflers, engine blocks, duct work and other various high temperature projects.
- CURE AND SET TIME: After kneading the two part formula together by hand, HighHeat takes 1 hour to set and cures in 8 hours. J-B Weld HighHeat set and cure color is machine grey.
- PRODUCT FEATURES AND STRENGTH: J-B Weld HighHeat has lap shear strength of 800 PSI at room temperature and 600 PSI at 400oF (204oC) or more. HighHeat is able to withstand continuous heat up to 450oF (232oC) and intermittent heat of 500oF (260oC). HighHeat is 3x stronger at higher temperatures than conventional epoxy puttys and can be tapped and drilled.
- MAJOR USES: Exhaust Manifolds, Tail Pipes, Mufflers, Engine Blocks, Duct Work, Machinery and other high temperature equipment.
- DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
- 3 times stronger at high temperatures
- Withstands continuous heat up to 450 degrees Fahrenheit, and intermittent heat up to 500 degrees Fahrenheit
- Strength of 800 PSI at room temperature and 600 PSI at 400 degrees Fahrenheit
- Perfect for tail pipes, mufflers, machinery, engine blocks, and exhaust manifolds
- Special Shipping Information: This item cannot be returned and has additional shipping restrictions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007PP26RI |
| Best Sellers Rank | #3,618 in Automotive ( See Top 100 in Automotive ) #7 in Body Repair Putty |
| Brand | J-B Weld |
| Bulb Type | Fluorescent |
| Color | Grey |
| Customer Reviews | 4.4 4.4 out of 5 stars (7,270) |
| Date First Available | March 29, 2012 |
| Exterior | Painted |
| Full Cure Time | 8 Hours |
| Global Trade Identification Number | 00043425082978, 06935743366714 |
| Is Discontinued By Manufacturer | No |
| Item Form | Putty |
| Item Package Quantity | 1 |
| Item Volume | 2 Fluid Ounces |
| Item Weight | 2.46 ounces |
| Item model number | 8297 |
| Manufacturer | JBWeld |
| Manufacturer Part Number | 8297 |
| Material | Epoxy Resin |
| Model | JBWeld 8297 |
| Number of Pieces | 1 |
| Package Information | Tube |
| Product Dimensions | 1.18 x 1.18 x 4.13 inches |
| Special Feature | High Heat Resistance |
| Special Features | High Heat Resistance |
| Specific Uses For Product | Automotive, Industrial Maintenance |
| Tensile Strength | 4000 Pounds Per Square Inch |
| UPC | 043425082978 043425700094 |
| Unit Count | 1.0 Count |
| Viscosity | Medium viscosity |
| Viscosity Level | Medium |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** J-B Weld
- **Item Form:** Putty
- **Material:** Epoxy Resin
- **Special Feature:** High Heat Resistance
- **Specific Uses For Product:** Automotive, Industrial Maintenance

## Images

![8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey - Image 1](https://m.media-amazon.com/images/I/719x-tORrWL.jpg)

## Questions & Answers

**Q: can you use this to seal a leaking transfer case seal? (would work ? instead of having to replace the seal?)**
A: I guess it depends on if you ever want to fix it right. Once you use this stuff thats how it will be forever, it's not pliable or removable

**Q: I striped out an oil drain plug on a generator motor. But there is a second drain on the other side of the engine. Will this seal in oily environment?**
A: if you are thinking about plugging the hole, yes, but if you have access to the inside of the pan i would use it to attach a plate to the inside. you could also grind down the outside free of rust / dirt and use it to bond a plate to the outside. i would be concerned about just using it as a plug, where using it to bond something to the pan would not span a 1/2 to 5/8 in. gap. you might even use a quarter or a nickle or something stainless that will not rust. after it sets, hit it with some high temp paint.

**Q: Can you use this on ceramic pottery or is it just for metal?**
A: You can,but for ceramic you dont need the high heat one, just the regular temperature version. This one is for exhausts etc..

**Q: Will work to repain a hole in car oil pan under the engine?**
A: Probably. Make sure it is really clean, sand the area where the epoxy goes. Maybe plug the hole with a broken off toothpick if it is still on the car to keep oil from seeping into the epoxy. Put a glob the size of a quarter and make sure the toothpick is covered. Put duct tape over the epoxy until hard. Should work.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Repaired my exhaust with this! Saved me $$$
*by M***S on November 25, 2025*

This stuff is great! I just used it to patch a cracked exhaust on our Toyota Corolla. I was about to invest 300 and parts plus an hour or two in labor. But when I inspected the exhaust closely from the Cadillac converter all the way back to the muffler. I noticed almost everything was in pretty good shape other than the one spot where there was a hairline fracture. Right after the joint, headed towards the muffler. On a whim, I decided to check on here to see what they had for muffler repair because I hadn’t been pleased with the local advanced auto had on the shelves. I found this and the JB weld muffler repair. I bought both, but I ended up going with this because I thought for my particular situation this would be the best. I’m glad I did. It was really easy to use. I prepped the area by wire brushing around the crack. And then using a rag with isopropyl alcohol to clean before applying. Wasn’t sure how much to use, but I put on a pair of latex gloves and cut approximately half the product to use. I mixed it with my hands while wearing the gloves until it was a uniform color and then I applied it to the crack all the way around the muffler. It was easy to apply and mold into the shape I wanted. It was only like 40° outside, so I propped up a heat gun from a distance and let that hit it for about an hour. After that, I didn’t start the car until the next morning but when I did, it sounded perfect again! So far I’m really happy. I haven’t driven the car much yet so I will keep the review updated. But so far I’m very pleased and hopeful based on other reviews. In my case, I would rate this an incredible value for the money!

### ⭐⭐⭐⭐⭐ JB
*by C***2 on January 24, 2026*

Very good quality, works as described, it sticks very good

### ⭐⭐⭐⭐⭐ Fix your muffler until you can afford a new one!
*by B***R on July 12, 2025*

I have this on-hand in case my old beater muffler gets a hole in it. It cures quick. I haven't used this batch yet but I know it works already. I've used JB Weld before. It's tough. This one is high temp and good for many uses. It's easy to use, just knead the two parts together and use it like putty. Clean the surface well and if suitable, sand the area lightly and you will get good adhesion. Make sure you clean the area with some brake cleaner or something like that to remove all oils. If you keep adhesives refrigerated you can extend the storage life dramatically

## Frequently Bought Together

- J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz. , Grey
- J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz
- J-B Weld 8267 SteelStik Steel Reinforced Epoxy Putty Stick - 2 oz.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-11*