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🔥 Fix it once, fix it extreme — the heat-proof hero your toolkit deserves!
J-B Weld 37901 ExtremeHeat is a high-temperature resistant metallic paste designed to withstand up to 538°C (1000°F). Ideal for repairing cracks, holes, and gaps in metal surfaces such as exhaust manifolds, grills, and fireplaces, it cures fully in 24 hours and can be drilled, machined, or sanded for a professional finish. Trusted by thousands and made in the USA, it’s the ultimate solution for durable, heat-proof repairs.
| ASIN | B01IBOBY74 |
| Best Sellers Rank | 3,089 in DIY & Tools ( See Top 100 in DIY & Tools ) 2 in Solder Pastes 1,959 in Home Care & Cleaning |
| Brand | J-B Weld |
| Colour | Gray |
| Compatible Material | Metal |
| Container Type | Tube |
| Country Of Origin | USA |
| Customer Reviews | 4.2 4.2 out of 5 stars (12,014) |
| 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 Volume | 3 Fluid Ounces |
| Item Weight | 86 g |
| Manufacturer | JBWeld |
| Manufacturer Part Number | 37901UK |
| Material | Metal, Aluminum |
| Model Number | 37901 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Resistance to extreme temperatures and ability to repair and fill metal surfaces |
| Specific Uses For Product | [Exhaust Manifolds, Heat Exchangers, Mufflers, Outdoor Grills, Fireplaces, Automotive Pipe Sealers] |
| UPC | 043425379016 |
| Unit Count | 85.2 gram |
| Viscosity Level | High |
| Water Resistance Level | Not Water Resistant |
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