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JB Weld Exhaust System Sealant — 3oz., High-Temp Metal Bond, 850°F Heat Resistance, Model# JBW37903

Item# 7154811
JB Weld Exhaust System Sealant — 3oz., High-Temp Metal Bond, 850°F Heat Resistance, Model# JBW37903

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JB Weld Exhaust System Sealant — 3oz., High-Temp Metal Bond, 850°F Heat Resistance, Model# JBW37903

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$7.49

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • Withstands High Heat: Resists temperatures up to 850°F (454°C).
  • Fast Set Time: Sets in just 30 minutes for efficient repairs.
  • Cures with Heat: Fully cures by running the engine for 10 minutes post-set.
  • Non-Shrinking Formula: Maintains bond integrity under thermal stress.
  • Seals Gaps & Seams: Ideal for pipe connections and leak points.

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Product Summary

J-B Weld Exhaust System Sealant is a high-temperature, non-shrinking paste designed for repairing and sealing exhaust system components. Formulated to withstand heat up to 850°F (454°C), this 3 oz tube provides a durable, reliable seal for metal surfaces such as exhaust pipes, mufflers, and connections. Ideal for reassembly or repair, it fills gaps and smooths seams with ease, setting in just 30 minutes. Once set, simply run the engine for 10 minutes to fully cure the product and lock the bond in place. This dark grey sealant resists cracking, shrinking, and heat stress, making it a must-have for DIYers and professional mechanics alike.

What's Included

    (1) One (1) 3 oz tube of J-B Weld Exhaust System Sealant, carded for easy storage and application.

Features + Benefits

  • Withstands High Heat: Resists temperatures up to 850°F (454°C).
  • Fast Set Time: Sets in just 30 minutes for efficient repairs.
  • Cures with Heat: Fully cures by running the engine for 10 minutes post-set.
  • Non-Shrinking Formula: Maintains bond integrity under thermal stress.
  • Seals Gaps & Seams: Ideal for pipe connections and leak points.
  • Durable on Metal: Designed specifically for automotive exhaust components.
  • Dark Grey Finish: Matches most exhaust systems for a clean appearance.

Key Specs

AttributeSpecification

item#

7154811

Brand

JB Weld

Ship Weight

0.02 LB
AttributeSpecification

Product Weight

0.0200 lb

Dimensions L x W x H (in.)

4.5 x 1.0 x 1.0 in

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