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🔥 Seal the heat, own the fix — don’t let your repairs cool off!
J-B Weld 8297 HighHeat Epoxy Putty Stick is a 2oz machine gray epoxy designed for extreme temperature repairs. It withstands continuous heat up to 450°F and intermittent heat spikes up to 500°F, offering 3 times the strength of conventional putties. With an 8-hour full cure time and 800 PSI tensile strength, it’s ideal for automotive exhausts, engine blocks, and industrial machinery. Easy to mix and apply, this American-made epoxy ensures a durable, rock-hard seal for high-heat bonding and sealing needs.





| ASIN | B007PP26RI |
| Best Sellers Rank | 1,807 in DIY & Tools ( See Top 100 in DIY & Tools ) 40 in Sealers |
| Brand | J-B Weld |
| Colour | Grey |
| Compatible Material | Brick, Ceramic, Concrete, Metal |
| Container Type | Tube |
| Customer Reviews | 4.4 out of 5 stars 7,312 Reviews |
| Full Cure Time | 8 Hours |
| Global Trade Identification Number | 00043425082978, 06935743366714 |
| Included Components | GLUE |
| Item Form | Putty |
| Item Package Quantity | 1 |
| Item Type Name | HighHeat Temperature Resistant Epoxy Putty Stick |
| Item Volume | 2 Fluid Ounces |
| Item Weight | 0.07 Kilograms |
| Item form | Putty |
| Manufacturer | JB WELD LTD |
| Manufacturer Part Number | 8297 |
| Material | Epoxy Resin |
| Model Number | 8297 |
| Number of Pieces | 1 |
| Other Special Features of the Product | High Heat Resistance |
| Special feature | High Heat Resistance |
| Specific Uses For Product | Automotive, Industrial Maintenance |
| Specific uses for product | Automotive, Industrial Maintenance |
| Tensile Strength | 800 Pounds Per Square Inch |
| UPC | 043425082978 043425700094 |
| Unit Count | 57.0 gram |
| Viscosity Level | Medium to High |
| Water Resistance Level | Not Water Resistant |
S**8
The good quality epoxy pytty
I found this very easy to use due ro easy instructions, as you only the amount required for use to be applied. Like the instructions say you have to knead the putty like working dough between your hands so that the outer darker area of is mixed with the inner lighter part of the putty to activate it before applyito to the surface area, but you must prepare the surface to with some sandpaper and clean it to make sure the putty has good surface to work with in the end. Once done it states it takes 8hrs for it to completely cure meaning you can even drill or sand it afterwards, if need be. I did find the i was able to shape it to plug the hole in pipe while while smearing it around the pipe, as to make sure it worked like a bandage to prevent tye potential of exhaust’s gas pressure being able to blow it anytime in the future. I wore rubber gloves while applying the putty with my hands which made it a lot easier to work seeing it can dry within 2hrs which means you can tell its just starting to thicken a little while still being mailable to continue shaping to surface area meantime. Remember, its up to 2hrs to drying but 8hrs to completely cure before being able to drill or sand it.
J**N
Got a hole or tear in exhaust? This will seal it
Seals holes in exhaust parts perfectly. File grind or drill when set. Easy to handle two part putty the mixes together to start harding but in a controlled way
R**E
Excellent stuff. Long term review.
Had a small hole in our hall radiator. I was skeptical to tell the truth. Hallelujah, it actually worked. Sealed the hole, no problem. Over a year now since I did the repair. Still no leak. Once the putty sets, it goes rock hard. Handy stuff to have in the tool box. Highly recommended..
L**S
Hard as nails
Good stuff does exactly whats decribed on the packaging.
V**E
It works well
I bought this after discovering a crack on a pipe, it was too difficult to replace it so I decided to give this epoxy putty for metal a go. I prepared the surface by cleaning it thoroughly and I used a metal file to scuff the surface and get mechanical adhesion. I mixed the putty thoroughly for a couple of minutes, and use a tiny amount for the crack, pushing it right in, then I used a bigger amount to create a full ring around the pipe to make sure the crack won't get any bigger since the pipe has no room for expansion. I left it cure for about 20 hours. I'm happy to report there's no leaks!
G**.
Doesn’t hold on my car exhaust
Not good. I use it to fill up a hole on my car exhaust but doesn’t hold.
T**Y
Tomy
Brilliant!
A**R
Works as described
Good value for money, very good quality and versatility . Product works well as designed for.
G**A
ottimo
ho usato lo stucco per saldare la filettatura al tappo scarico olio dello scooter si era completamente crepata. Regge da due mesi senza alcuna perdita...va impastato bene e applicato in pressione lasciandolo polimerizzare per almeno 12 h meglio 24
P**H
Trzs efficace
Tres efficace, facilite d utilisation
M**S
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!
P**N
Fast delivery
Product delivery than schedule but it look old and dusty.
R**I
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