Can I use this to repair a stove burner grate? I dropped it and the pieces need to glued together. Thanks

No, this will not provide any type of structural support. This is a filler, we also do not recommend any of our products to be in direct flame. Thank you, J-B Weld Support

This is not waterproof. Left open to water/rain, this product will completely dissolve.

Can this be used to"glue 2 pieces of metal together?

No. As per the manufacturer, it is "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." It is NOT designed to bond two separate pieces together.

Can i use this on an engine block steipped bolt hole?

I assume you meant "stripped". Is it one of the head bolt holes or another hole for mounting something else? If it is a head bolt hole, I'd use a heli-coil instead. JB Weld isn't very structural in strength. It's good in compression, but not sure about tension, torsion, or shear forces. In one of the questions, a JB Weld Support rep said "No, this will not provide any type of structural support", so I'd go with heli-coil instead. That will also keep the bolt hole centered closer to where it is now. With JB Weld the hole may end up in a slightly different location which would probably not be good.

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J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz

J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz

Product ID: 31857662

Details

Brand
J-B Weld
Item Form
Paste
Material
Metal Aluminum
Special Feature
Heat Resistant
Specific Uses For Product
['Repair'

⏳Full cure in 24 hours

🔥Withstands up to 1000°F / 537°C

🛠️Permanent bond stronger than steel

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€ 15.32

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
J-B Weld
Item Form
Paste
Material
Metal Aluminum

Description

🔥 Fix it once, fix it extreme. The heat-proof bond that means business.

ECO SMART SAFE - No solvents or VOCs, waterproof and non-flammable—repair with confidence and care for your workspace.
STEEL STRONG BOND - Creates a permanent, non-flammable metallic weld that’s tougher than steel—ditch the torch, keep the precision.
DIY READY MACHINABLE - Once cured, drill, sand, or machine it to perfection—customize your repair with professional-grade ease.
EXTREME HEAT ENDURANCE - Engineered to perform flawlessly in scorching environments up to 1000°F, making it your go-to for high-temp repairs.
VERSATILE METAL MASTERY - Perfect for iron, steel, alloy repairs on exhausts, grills, furnaces, and more—one paste, endless fixes.

J-B Weld 37901 ExtremeHeat is a 3 oz metallic paste designed for high-temperature repairs up to 1000°F (537°C). It forms a permanent, steel-strong bond without the need for torch welding, cures fully in 24 hours, and can be drilled or sanded after curing. Ideal for repairing iron, steel, and alloy components in extreme heat environments such as exhaust manifolds, grills, and furnaces, it is non-flammable, solvent-free, and waterproof, making it a reliable and eco-conscious choice for professional-grade fixes.

Specifications

ASIN	B01IBOBY74
Best Sellers Rank	#1,057 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Industrial Lubricants
Brand	J-B Weld
Brand Name	J-B Weld
Color	Grey
Compatible Material	Alloy Steel, Iron
Container Type	Tube
Customer Reviews	4.2 out of 5 stars 12,039 Reviews
Full Cure Time	24 Hours
Global Trade Identification Number	00043425379016
Included Components	Metallic Paste Repair Bottle 3 oz.
Item Form	Paste
Item Package Quantity	1
Item Type Name	ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz
Item Weight	0.19 Pounds
Manufacturer	JBWeld
Material	Metal, Aluminum
Material Type	Metal, Aluminum
Model	37901
Other Special Features of the Product	Heat Resistant
Part Number	37901UK
Special Feature	Heat Resistant
Specific Uses For Product	['Repair', 'High Temperature Environments']
UPC	043425379016 043425700285
Unit Count	3.0 Ounce
Viscosity Level	High
Volume	3 Fluid Ounces
Warranty Description	No Warranty
Water Resistance Level	Waterproof

Reviews

A**E

7.07.2022

K**D

22.04.2026

S**K

27.03.2026

J**O

25.01.2026

W**N

7.08.2017

T**N

18.11.2018

G**S

6.12.2025

T**N

26.03.2026

K**W

3.01.2026

R**I

4.11.2021

J**A

20.01.2024

T**S

27.04.2024

C**D

1.04.2026

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