J-B Weld 3 oz. ExtremeHeat Paste
J-B Weld 3 oz. ExtremeHeat Paste
Item # 1671263
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J-B Weld ExtremeHeat Paste is formulated to allow for repairs to iron, steel and metal in high temperature environments (1000 degrees F / 538 degrees C). When fully cured, this metallic compound can be drilled, machined or sanded. It is great for repairing cracks, small gaps, seam connections or holes in exhaust manifolds, pipe connections, mufflers, catalytic converters, outdoor grills, fire boxes, gas and commercial furnaces and water heaters. This product is water based, non-flammable and contains no solvents or Volatile Organic Compounds (VOCs).
- Organic repair paste able to withstand extreme heat up to 1000 degrees F
- Organic repair paste can be used for filling cracks and holes on metal surfaces
- Sets in 1 hour and dries machine grey to a functional cure in 24 hours
- Great for exhaust manifolds, tail pipes, mufflers, engine blocks, duct work, fireplaces, grills and more
| Brand | J-B Weld |
|---|---|
| Country of Origin | Made in USA |
| Container Size | 3 oz. |
| Coverage Area | 0 sq. ft. |
| Cure Time | 24 hours |
| Dry to Touch | 1 hour |
| Features | Sandable |
| Indoor/Outdoor | Indoor and Outdoor |
| Longevity | 99 year |
| Package Quantity | 1 |
| Primary Color | Gray |
| Product Height | 7.5 in. |
| Product Length | 1.6 in. |
| Product Weight | 0.25 lb. |
| Product Width | 3.88 in. |
| Sealant Form | Other |
| Sealant Type | Other |
| Manufacturer Part Number | 37901 |
Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 10 of 10 Questions
Newest questions
Q: Can I use on wood stove seams
7 months ago1 Answer
- A: Hello, thank you for your question. It can be used to fill small gaps or cracks on metal wood stove seams, but it’s not a permanent repair or a substitute for welding or proper stove repair.7 months agoHelpful?
Q: Will it work for a half dollar size hole in the exhaust system
8 months ago1 Answer
- A: Use the 38572 covering a piece of scrap steel for the best results8 months agoHelpful?
Q: Can I use it on electric parts
10 months ago1 Answer
- A: Have not tested for this. It is more of a filler for high temp use and is water based10 months agoHelpful?
Q: Can I use it to reconnect a. Exhaust pipe
a year ago1 Answer
- A: Look to the Exhaust weld 38572 for thisa year agoHelpful?
Q: Will this work on repairing a barrel bbq grill using 1/16 inch sheet metal?
a year ago1 Answer
- A: If this is to cover a hole or void best to use sheet metal screws. The Extreme is not a great adhesive but more of a filler. It is also not food grade rated.a year agoHelpful?
Q: Will this stick a piece of plastic to a metal engine valve cover?
2 years ago1 Answer
- A: Thats not an adhesive. look to Black RTV silicone like is used for engine repair2 years agoHelpful?
Q: Will it hold up on an aluminum hot water tank?
3 years ago1 Answer
- A: no it is water based and will dissolve.3 years agoHelpful?
Q: If I use this to repair a metal firepit bowl if it rains on it will it dissolve?
3 years ago1 Answer
- A: Hi there, Its is water based and will dissolve.3 years agoHelpful?
Q: Will this adhere to bakelite plastic? I'm trying to repair a handle on a cooking pot. Would another J-B Weld product be better for the task?
3 years ago1 Answer
- A: No. Its is water based and will dissolve. Look to Plastic Bonder 50139.3 years agoHelpful?
Q: If I were to out this in aluminum to fill a gap and powder coated will the paint stick to the jb weld area?
3 years ago1 Answer
- A: It won't take powdercoat since no metallic in the mix. It may initially adhere but will chip/fall off3 years agoHelpful?
Q&As
Have a question?
Start typing your question and we'll check if it was already asked and answered.
1 - 10 of 10 Questions
Newest questions
Q: Can I use on wood stove seams
7 months ago1 Answer
- A: Hello, thank you for your question. It can be used to fill small gaps or cracks on metal wood stove seams, but it’s not a permanent repair or a substitute for welding or proper stove repair.7 months agoHelpful?
Q: Will it work for a half dollar size hole in the exhaust system
8 months ago1 Answer
- A: Use the 38572 covering a piece of scrap steel for the best results8 months agoHelpful?
Q: Can I use it on electric parts
10 months ago1 Answer
- A: Have not tested for this. It is more of a filler for high temp use and is water based10 months agoHelpful?
Q: Can I use it to reconnect a. Exhaust pipe
a year ago1 Answer
- A: Look to the Exhaust weld 38572 for thisa year agoHelpful?
Q: Will this work on repairing a barrel bbq grill using 1/16 inch sheet metal?
a year ago1 Answer
- A: If this is to cover a hole or void best to use sheet metal screws. The Extreme is not a great adhesive but more of a filler. It is also not food grade rated.a year agoHelpful?
Q: Will this stick a piece of plastic to a metal engine valve cover?
2 years ago1 Answer
- A: Thats not an adhesive. look to Black RTV silicone like is used for engine repair2 years agoHelpful?
Q: Will it hold up on an aluminum hot water tank?
3 years ago1 Answer
- A: no it is water based and will dissolve.3 years agoHelpful?
Q: If I use this to repair a metal firepit bowl if it rains on it will it dissolve?
3 years ago1 Answer
- A: Hi there, Its is water based and will dissolve.3 years agoHelpful?
Q: Will this adhere to bakelite plastic? I'm trying to repair a handle on a cooking pot. Would another J-B Weld product be better for the task?
3 years ago1 Answer
- A: No. Its is water based and will dissolve. Look to Plastic Bonder 50139.3 years agoHelpful?
Q: If I were to out this in aluminum to fill a gap and powder coated will the paint stick to the jb weld area?
3 years ago1 Answer
- A: It won't take powdercoat since no metallic in the mix. It may initially adhere but will chip/fall off3 years agoHelpful?
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Reviews
- purchase
- repairs
- parking
- packaging
- engine performance
- functional
- thickness
- for leaks
1 to 4 of 21 Reviews .
1 – 4 of 21 Reviews
Most Recent
Caseyc
MN
Review 1
GenderMale
Age55 to 64
5 out of 5 stars.
Repair alloy Motorcycle engine side cover
8 months ago
I used this product on a small crack on my XT600 motorcycle, after 3 years, absolutely no oil leaks
Yes, I recommend this product.
Originally posted on JBWeld.com
Texas
Review 1
5 out of 5 stars.
Great product
a year ago
So far so good - handle was loose on frying pan
SweepstakesYes
Yes, I recommend this product.
Review 1
1 out of 5 stars.
Wish I had known
2 years ago
Was using on an Engine Block because of heat and because it states on the packaging that I could use it as such. Applied to the vertical side and it literally ran down the side and dripped off. I degreased the place where I was applying and scuffed it up with a dremel. Additionally, the thin layer that stayed was brittle after curing. States it is a paste rather than epoxy but was very runny. Most of the 3 oz ended up on my garage floor. Called the company and they said not to use it on the engine block and referred them to their packaging. Oh well.
No, I do not recommend this product.
tictac
New york
Review 1
GenderMale
Age55 to 64
5 out of 5 stars.
great job
2 years ago
used it , let it cure and wrapped it with " Exhaust weld wrap " and presto it is great
Yes, I recommend this product.
Originally posted on JBWeld.com