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B&Q£24.34Visit shop B&Q - J-B Weld Extremeheat Temperature Paste (2 Pack)3OzHigh-Temp Resistant Repair Compound
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The JB Weld ExtremeHeat Temperature Paste is designed for professionals and DIY enthusiasts tackling repairs in extreme heat environments. Its key benefit is a durable seal capable of withstanding temperatures up to 1316°C, ideal for metal components exposed to intense heat. A caveat is that it is intended for non-structural repairs only. This metallic grey paste effectively seals cracks, seams, and small holes in iron, steel, and other metal parts, curing to a hard, crack-resistant finish after heat activation.
| Colour | Grey |
|---|---|
| Brand | JB Weld |
JB Weld ExtremeHeat Temperature Paste is engineered to withstand temperatures up to 1316°C (2400°F).
No, this compound is designed for non-structural repairs such as sealing cracks and seams. It is not intended for load-bearing applications.
The paste cures through heat activation. It needs to be exposed to high temperatures after application to harden and form a durable bond.
It is ideal for repairing and sealing iron, steel, and other metal components that are exposed to intense heat.
The curing time depends on the application and the amount of heat applied. Sustained exposure to high temperatures is required for a complete cure.
Once properly heat-activated and cured, the seal will be resistant to high temperatures and typical environmental conditions found in its intended applications, which often involve exposure to exhaust fumes and moisture.
Store in a cool, dry place in a tightly sealed tube. For best results, use within the recommended timeframe indicated on the packaging. Typically, unopened tubes have a long shelf life.
Ensure the repaired area reaches and maintains sufficient high temperatures after application. Heat-activated curing requires sustained heat exposure.
Verify that the surface was properly prepared (clean, dry, free of contaminants). Ensure the paste was applied to the correct depth and that adequate heat was applied for curing. Check for structural issues not addressed by a non-structural repair compound.
Use a small spatula or applicator tool for better control. If the paste is too stiff, a brief exposure to mild warmth (not high heat) might improve workability, but avoid overheating before application.
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