


🔥 Fix it once, fix it right — the heat-resistant hero you can’t afford to miss!
J-B Weld ExtremeHeat is a high-temperature resistant metallic paste designed to withstand up to 538°C. It sets in 1 hour and fully cures in 24 hours, making it ideal for repairing exhaust manifolds, heat exchangers, mufflers, grills, and fireplaces. This 85g filler delivers durable, precision repairs for professionals and DIYers alike.



| Manufacturer | JBWeld |
| Brand | J-B Weld |
| Model | ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz |
| Product Dimensions | 4 x 4 x 5.2 cm; 86.18 g |
| Item model number | 37901 |
| Manufacturer part number | 37901UK |
| Special Features | Heat Resistant |
| Item Weight | 86.2 g |
| Viscosity | High |
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