J-B Weld Type-1 Gasket Sealant 3 oz 1 pk

Shop allJ-B Weld

2.250KD

J-B Weld Type-1 Gasket Sealant 3 oz 1 pk

Shop all J-B Weld

Item # 10021240 | Ace item number # 8429730

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Usually ships 2026-03-02

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Product Overview

  • J-B Weld Ultimate Grey Gasket Maker and Sealant is a premium RTV (Room Temperature Vulcanized) silicone engineered to perform under high-torque mechanical conditions where standard silicones often fail. It is specifically formulated for assemblies with closely spaced bolts or increased load pressure, providing superior sealing strength and long-lasting reliability. When exposed to air moisture, the silicone cures into a durable, waterproof, and flexible gasket that adheres securely to most surfaces without shrinking or cracking.
  • This advanced sealant is highly resistant to oil, petroleum products, and environmental weathering, making it ideal for demanding automotive applications. It performs exceptionally well in engine components, valve covers, oil pans, transmission housings, and other areas exposed to heat, pressure, and fluid contact. With intermittent temperature resistance up to 700°F, it ensures dependable performance even under harsh thermal conditions.
  • The formula sets within one hour, helping reduce maintenance time and enabling quicker assembly. Its sensor-safe characteristics ensure compatibility with modern vehicle systems. Packaged in a practical 3-ounce tube and recommended for steel surfaces, J-B Weld Ultimate Grey provides consistent, long-term sealing strength suited for professional mechanics and DIY users who need reliable gasket formation and protection in high-stress environments.
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Specifications

  • Manna : J-B Weld
  • Maximum Operating Temperature : 500 deg. F
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