J-B Weld 8272 Marineweld Marine Epoxy - 2 Oz.
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J-B Weld 8272 Marineweld Marine Epoxy - 2 Oz.

Key item features

  • Marine Grade: This two-part epoxy cold weld system is specifically formulated for strong, lasting repairs on marine and watercraft surfaces.
  • Robust Performance: Features a 1:1 mixing ratio, 3,960 PSI shear strength, and 5,020 PSI tensile strength, capable of withstanding temperatures up to 550°F.
  • Versatile Applications: Effectively bonds aluminum, fiberglass, metal, plastic/composite, and wood, retaining strength both above and below water.
  • Durable Curing: Sets in 4-6 hours and fully cures in 15-24 hours to a dark gray, waterproof, and chemical-resistant finish that can be tapped, sanded, molded, and drilled.
  • Temperature Resilience: Operates within a temperature range of 0°F to 600°F, with an epoxy max temperature of 300°F and above.
  • Easy Application: Requires cleaning and roughening the surface, mixing equal parts, and applying with an appropriate tool.
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Current price is $10.05
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Sold and shipped by JBTools
4.422425629290617 stars out of 5, based on 2185 seller reviews(4.4)
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4.7 out of 5 stars
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27 ratings19 reviews
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  1. 5 stars85% (23)
  2. 4 stars11% (3)
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Showing 1-3 of 19 reviews

Mar 13, 2026
Kardin
Item details
Size: Adhesives: Epoxy
Sold and shipped byChasinparts Customer Serivce
5 out of 5 stars review

Verified Purchase

Strong bond and excellent for aluminum seal

Excellent product! stick very well in aluminum. Strong bond. We had mussels eating up the pontoons over 20 years. we patched up with this product and covered with another coat of primer paint to have another lifetime protection. Great price comparing with the market!

Helpful?3ZU1296054T021783375
Jun 28, 2026
Jim
Item details
Size: Adhesives: Epoxy
Sold and shipped byJBTools
5 out of 5 stars review

Verified Purchase

Gas tank repair

Used it to repair a hole on a plastic riding mower gas tank. Regular JB not compatible with fuel. 2 day cure, filled tank, no leak.

Helpful?3ZU1296054T021783375
Oct 4, 2023
Bertminator
5 out of 5 stars review

Worked great on trailer water tank

I used this to seal my trailer's water tank that had split / cracked possibly because of a stone that hit it, and after sanding the surface very well and putting a screen mesh over the split area (crack was roughly 2 inches long in an "X" shape), applied the JB Weld and to it's credit the tank no longer leaks. Did this job last summer and camped twice this summer (2023), and so far NO LEAKS whatsoever. Highly recommend.

Review from JBWeld.com
Helpful?3ZU1296054T021783375