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

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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

Q: 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

Q: 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.

Q: 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.

Product ID: 31857662

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Details

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

💧Waterproof & solvent-free formula

🔥Withstands up to 1000°F / 537°C

🛠️Permanent bond stronger than steel

Frequently Bought Together

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

J-B Weld ExhaustWeld 2" x 72" Repair Wrap, White

J-B Weld High Heat Epoxy Syringe, Dark Grey

Description

🔥 Fix it once, fix it forever with J-B Weld!

STEEL STRONG BOND - Creates a permanent, industrial-grade weld stronger than steel itself—no torch needed.
DIY READY MACHINABLE - Once cured, drill, sand, or machine it to perfection—customize your repair like a pro.
VERSATILE METAL REPAIR - Perfect for fixing exhausts, grills, furnaces, and more—your all-in-one metal savior.
EXTREME HEAT RESISTANCE - Engineered to endure scorching 1000°F environments without breaking a sweat.
ECO SAFE NON FLAMMABLE - Zero solvents or VOCs, making it safe for indoor and outdoor use with no fire risk.

J-B Weld Extreme Heat is a high-viscosity metallic paste designed for permanent repairs on iron, steel, and metal surfaces exposed to extreme temperatures up to 1000°F (537°C). Non-flammable and free of solvents and VOCs, it forms a waterproof, durable bond stronger than steel that can be drilled, machined, or sanded after curing in 24 hours. Ideal for professional-grade repairs on exhaust manifolds, grills, furnaces, and more.

Specifications

Brand	J-B Weld
Specific Uses For Product	['Repair', 'High Temperature Environments']
Material	Metal, Aluminum
Item Form	Paste
Special Feature	Heat Resistant
Color	Grey
Item Package Quantity	1
Package Information	Tube
Item Volume	3 Fluid Ounces
Viscosity	High
Full Cure Time	24 Hours
Water Resistance Level	Waterproof
Unit Count	3.0 Ounce
Viscosity Level	High
UPC	043425379016 043425700285
Global Trade Identification Number	00043425379016
Manufacturer	JBWeld
Model	ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz
Item Weight	3.04 ounces
Product Dimensions	1.57 x 1.57 x 2.05 inches
Item model number	37901
Is Discontinued By Manufacturer	No
Manufacturer Part Number	37901UK
Special Features	Heat Resistant

Have a Question? See What Others Asked

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

Is this waterproof?

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

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

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