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B&Q£85.79Visit shop B&Q - J-B Weld Extremeheat Temperature Paste (10 Pack)3OzHigh-Temp Resistant Repair Compound
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The JB Weld ExtremeHeat Temperature Paste is designed for DIY enthusiasts and professional mechanics dealing with high-temperature metal repairs. Its key benefit is its ability to withstand extreme heat up to 1316°C, providing durable seals for components like exhaust systems and furnaces. However, it is important to note that this compound is for non-structural repairs only and is not suitable for load-bearing applications. This guide covers its features, usage, and care.
| Colour | Grey |
|---|---|
| Brand | JB Weld |
The JB Weld ExtremeHeat Temperature Paste is engineered to withstand temperatures up to 1316°C (2400°F).
No, this product is specifically designed for non-structural repairs such as sealing cracks, seams, and small holes. It is not intended for load-bearing applications.
The paste cures when activated by heat. The specific curing time will depend on the temperature applied and the thickness of the application. Normal operation of the heated component usually suffices.
It is ideal for repairing and sealing iron, steel, and other metal components exposed to intense heat.
No, this product is formulated for metal components and high-temperature applications. It is not suitable for plastic or rubber.
Store unused tubes tightly capped in a cool, dry place away from direct heat.
The cured paste has a metallic grey finish.
Ensure the metal surface reaches the required activation temperature. Insufficient heat will prevent a full cure. Reapply and ensure adequate heat exposure.
Verify the temperature of the application does not exceed 1316°C. Ensure the surface was properly prepared and free of contaminants.
If the paste becomes too stiff, ensure it is not exposed to excessive heat before application. For very fine details, a small, stiff brush or precision applicator tool can be used.
This can occur if the material was applied too thinly or if the thermal cycling exceeds its limits. Ensure a sufficient layer was applied and that the temperature resistance is not exceeded.
Preparation: Ensure the metal surfaces to be repaired are clean, dry, and free of grease, oil, rust, and loose paint. Lightly roughening the surface with sandpaper can improve adhesion.
Application: Apply the paste directly from the tube to the damaged area. Use a spatula or putty knife for precise application, ensuring it fills the crack, seam, or hole completely. Smooth the surface for a clean finish.
Curing: Unlike many adhesives, JB Weld ExtremeHeat requires heat to cure. After application, the component should be subjected to heat. For automotive exhausts, normal engine operation will provide the necessary heat. For other applications, gradual heating with a torch or placing the item in an oven (following safety guidelines) may be required. Refer to specific project requirements for optimal curing temperatures and times.
Compatibility: This paste is designed for use on iron, steel, and other metal components that experience high temperatures. It is not recommended for use on plastic, rubber, or painted surfaces that will not be exposed to heat during the curing process.
Care: Once cured, the material forms a hard, durable finish. Avoid prolonged exposure to moisture or corrosive chemicals if possible, although the cured material is generally resistant. Store unused tubes in a cool, dry place, tightly capped.
