--- product_id: 31857662 title: "J-B Weld ExtremeHeat" brand: "j-b weld" price: "HK$131" currency: HKD in_stock: true category: "J B Weld" url: https://www.desertcart.hk/products/31857662-j-b-weld-extremeheat store_origin: HK region: Hong Kong --- # Full cure in 24 hours Withstands up to 1000°F / 537°C Permanent bond stronger than steel J-B Weld ExtremeHeat **Brand:** j-b weld **Price:** HK$131 **Availability:** ✅ In Stock ## Summary > 🔥 Fix it once, fix it extreme. The heat’s on, and so are you. ## Quick Answers - **What is this?** J-B Weld ExtremeHeat by j-b weld - **How much does it cost?** HK$131 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/31857662-j-b-weld-extremeheat) ## Best For - j-b weld enthusiasts ## Why This Product - Trusted j-b weld brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Steel-Strong Bond:** Creates a permanent, non-flammable bond that’s tougher than steel itself—ditch the torch welding anxiety. - • **Waterproof & VOC-Free:** Eco-conscious and durable—no solvents, no volatile organic compounds, and fully waterproof for lasting reliability. - • **Extreme Heat Endurance:** Engineered to perform flawlessly in scorching environments up to 1000°F, making it your go-to for high-temp repairs. - • **Precision Finish Ready:** Once cured, drill, machine, or sand it to perfection for seamless, professional-grade results. - • **Versatile Metal Compatibility:** Perfectly formulated for iron, steel, alloy steel, and aluminum repairs—one paste, endless fixes. ## Overview 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 solvents or VOCs, cures fully in 24 hours, and can be drilled or machined post-cure. Ideal for repairing iron, steel, and alloy metals in extreme heat environments such as exhaust manifolds, grills, and furnaces, this waterproof paste offers professional-grade durability and versatility. ## Description J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz ## Features - Jb Weld Extreme Heat: Is Formulated For Repairs To Iron, Steel And Metal In High Temperature Environments 1000°F / 537°C. Non-Flammable, It Contains No Solvents Or Volatile Organic Compounds (Vocs). - The Original Cold Weld: Jb Weld Was Developed As An Alternative To Torch Welding. Designed To Be Effective In Extreme Environments, Once It Sets, It Creates A Permanent Bond Stronger Than Steel. - Simple To Use: When Fully Cured, This Metallic Compound Can Be Drilled, Machined Or Sanded. It Is Great For Repairing Cracks, Small Gaps, Seam Connections Or Holes. - Versatile & Dependable: Ideal For Repair Work On : Exhaust Manifolds, Pipe Connections, Mufflers, Catalytic Converters, Outdoor Grills, Fire Boxes, Gas And Commercial Furnaces And Water Heaters. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01IBOBY74 | | Best Sellers Rank | #1,177 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 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 (12,228) | | 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 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 | 3.0 Ounce | | Viscosity Level | High | | Volume | 3 Fluid Ounces | | Warranty Description | No Warranty | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** J-B Weld - **Item Form:** Paste - **Material:** Metal, Aluminum - **Special Feature:** Heat Resistant - **Specific Uses For Product:** ['Repair', 'High Temperature Environments'] ## Images ![J-B Weld ExtremeHeat - Image 1](https://m.media-amazon.com/images/I/71LArrmzUqL.jpg) ![J-B Weld ExtremeHeat - Image 2](https://m.media-amazon.com/images/I/71fqbLe+VzL.jpg) ![J-B Weld ExtremeHeat - Image 3](https://m.media-amazon.com/images/I/71VhbkIyWoL.jpg) ![J-B Weld ExtremeHeat - Image 4](https://m.media-amazon.com/images/I/71ISUnv1wRL.jpg) ![J-B Weld ExtremeHeat - Image 5](https://m.media-amazon.com/images/I/71Lbh1r+OKL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can I use this to repair a stove burner grate? I dropped it and the pieces need to glued together. Thanks** A: 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: Is this waterproof?** A: This is not waterproof. Left open to water/rain, this product will completely dissolve. **Q: Can this be used to"glue 2 pieces of metal together?** A: 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?** A: 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. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/31857662-j-b-weld-extremeheat](https://www.desertcart.hk/products/31857662-j-b-weld-extremeheat) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-16*