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J-B Weld ExtremeHeat High Temp Exhaust Paste — 3 Oz. Tub, Up to 1000°F, Water-Based, Non-Flammable, Model# JBW37901

Item# 7154740
J-B Weld ExtremeHeat High Temp Exhaust Paste — 3 Oz. Tub, Up to 1000°F, Water-Based, Non-Flammable, Model# JBW37901

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J-B Weld ExtremeHeat High Temp Exhaust Paste — 3 Oz. Tub, Up to 1000°F, Water-Based, Non-Flammable, Model# JBW37901

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$15.99

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • Extreme Heat Resistance: Withstands temperatures up to 1000°F (537°C).
  • Versatile Repairs: Ideal for exhaust systems, grills, furnaces, water heaters, and more.
  • Metallic, Durable Paste: Fills cracks, gaps, seams, and holes in metal surfaces.
  • Water-Based & Non-Flammable: Safe and environmentally friendly formula.
  • Machinable After Cure: Can be drilled, machined, or sanded once cured.

  • Prop 65 Warning: See Details

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Product Summary

J-B Weld ExtremeHeat™ Paste is a specially formulated high-temperature repair compound designed for iron, steel, and metal surfaces exposed to extreme heat up to 1000°F (537°C). This durable metallic paste is perfect for fixing cracks, gaps, seams, and holes in exhaust manifolds, pipe connections, mufflers, catalytic converters, grills, fire boxes, furnaces, and water heaters. It is water-based, non-flammable, and free of solvents and VOCs, making it a safer choice for tough repairs. Once fully cured in 24 hours, the paste can be drilled, machined, or sanded for a professional finish. Its dark grey color blends seamlessly with metal surfaces, delivering a reliable, long-lasting seal for automotive and industrial applications.

What's Included

    (1) One (1) 3 oz plastic tub of J-B Weld ExtremeHeat™ High Temp Exhaust Paste

Features + Benefits

  • Extreme Heat Resistance: Withstands temperatures up to 1000°F (537°C).
  • Versatile Repairs: Ideal for exhaust systems, grills, furnaces, water heaters, and more.
  • Metallic, Durable Paste: Fills cracks, gaps, seams, and holes in metal surfaces.
  • Water-Based & Non-Flammable: Safe and environmentally friendly formula.
  • Machinable After Cure: Can be drilled, machined, or sanded once cured.
  • Long Cure Time: Sets in 1 hour and fully cures in 24 hours for maximum strength.
  • Dark Grey Finish: Blends with metal for a clean, professional look.

Key Specs

AttributeSpecification

item#

7154740

Brand

JB Weld

Ship Weight

0.25 LB
AttributeSpecification

Product Weight

0.2500 lb

Dimensions L x W x H (in.)

2.0 x 2.0 x 3.5 in

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