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🔥 Fix it once, fix it forever — the ultimate heatproof metal miracle!
J-B Weld 37901 ExtremeHeat is a 3 oz metallic paste designed for high-temperature repairs up to 1000°F. It forms a permanent, steel-strong bond without solvents or VOCs, cures fully in 24 hours, and can be drilled or machined after curing. Ideal for fixing exhausts, grills, and metal components exposed to extreme heat, this waterproof, versatile paste is a must-have for professionals and DIYers seeking reliable, long-lasting metal repairs.









| ASIN | B01IBOBY74 |
| Best Sellers Rank | #1,134 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Industrial Lubricants |
| Brand Name | J-B Weld |
| Color | Grey |
| Compatible Material | Alloy Steel, Iron |
| Container Type | Tube |
| Customer Reviews | 4.2 4.2 out of 5 stars (12,319) |
| 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 | 3.04 ounces |
| Manufacturer | JBWeld |
| Material Type | Metal, Aluminum |
| Model | 37901 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Heat Resistant |
| Part Number | 37901UK |
| Specific Uses For Product | ['Repair', 'High Temperature Environments'] |
| UPC | 043425379016 |
| Unit Count | 3 Ounce |
| Viscosity Level | High |
| Volume | 3 fluid ounces |
| Warranty Description | No Warranty |
| Water Resistance Level | Waterproof |
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