

🔥 Seal the heat, fix it right—because your gear deserves the best!
J-B Weld 8297 HighHeat Epoxy Putty Stick is a 2oz machine gray epoxy designed to withstand continuous heat up to 450°F and intermittent heat spikes up to 500°F. It offers 3 times the strength of conventional epoxy putties at high temperatures, making it perfect for automotive and industrial repairs like exhaust manifolds, mufflers, and engine blocks. Easy to use with a knead-and-apply formula, it cures fully in 8 hours to a rock-hard, drillable finish. Proudly made in the USA, it’s the go-to solution for professionals demanding durable, heat-resistant bonding and sealing.





| ASIN | B007PP26RI |
| Best Sellers Rank | 2,324 in DIY & Tools ( See Top 100 in DIY & Tools ) 57 in Sealers |
| Brand | J-B Weld |
| Customer Reviews | 4.4 4.4 out of 5 stars (7,204) |
| Date First Available | 6 Aug. 2012 |
| Exterior | Painted |
| Item Weight | 70 g |
| Item model number | 8297 |
| Manufacturer | JB WELD LTD |
| Manufacturer part number | 8297 |
| Model | JB8297 |
| Product Dimensions | 3 x 3 x 10.5 cm; 70 g |
| Special Features | High Heat Resistance |
| Viscosity | Medio-Alto |
M**S
Does the job it says it will!! Excellent!
Seems to be a fantastic product! I bought this after my car developed quite a serious coolant leak from a metal pipe part of the engine. Wanted to use it as emergency fix really, however it turned out so good that it has become permanent fix until I have the will and time to take the car to the garage. I have filled the instructions to the letter and left it dry for 12 hours, just in case... I waited with this review for nearly two weeks to see the actual performance of the product... It hardened to a rock hard substrate and sealed the hole completely and reliably. Absolute bargain as well! I've put some before and after pictures. Can't recommend this enough!
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.
D**S
Didn’t set correctly due to cold weather
Didn’t set correctly due to cold temperatures and crumbled. I imagine if it was warmer it would have worked well.
G**A
Easy to use saved me a fortune
Very easy to use, fixed hole in washing machine drum. Would definitely recommend
G**N
Brilliant
This is great stuff, does exactly what it described it would, metal to metal at high heat. Great stuff
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.
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
H**N
Easy repair for exhaust and bracket
Had to purchase this as during an inspection under my car I found the exhaust mounting bracket had broken away from the exhaust. So after making up a ball of this I applied it to the arm and exhaust, the adhesion was very good with no messiness. The bracket held to the exhaust and I left the vehicle to sit for a day and then took it for a long drive and checked the exhaust which was still held in place so this has good strength and durability. Hopefully this will last!
G**A
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
Tres efficace, facilite d utilisation
M**S
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
Product delivery than schedule but it look old and dusty.
R**I
للاسف كان به تسريب مايشبة زيت المحرك اعتقد انه بسبب سوء تخزين
Trustpilot
3 days ago
2 weeks ago