SKU: 80819396224

J-B Weld Professional Size Steel Reinforced Epoxy Twin Tube Cold Weld System High Heat 5020 PSI Metal Repair 10 oz 8281

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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

J-B Weld Professional Size Steel Reinforced Epoxy Twin Tube Cold Weld System High Heat 5020 PSI Metal Repair 10 oz 8281The World's Strongest Bond for Heavy Duty Professional Repairs The J B Weld 8281 Professional Size Steel Reinforced Epoxy is the supersized version of the legendary "Original Cold Weld" system, designed for substantial industrial, automotive, and marine projects. This two part epoxy system provides a viable alternative to torch welding, creating a permanent bond that is stronger than steel itself. With an incredible tensile strength of 5020 PSI, this

The World's Strongest Bond for Heavy-Duty Professional Repairs

The J-B Weld 8281 Professional Size Steel Reinforced Epoxy is the supersized version of the legendary "Original Cold Weld" system, designed for substantial industrial, automotive, and marine projects. This two-part epoxy system provides a viable alternative to torch welding, creating a permanent bond that is stronger than steel itself. With an incredible tensile strength of 5020 PSI, this formula is engineered to handle the toughest repairs on metal, iron, concrete, and more, ensuring that your fix isn't just temporary, but a long-lasting structural solution.

Versatility and durability are at the core of J-B Weld's performance. Once mixed at a simple 1:1 ratio, the epoxy sets in 4-6 hours and achieves a full, rock-hard cure in 15-24 hours. After curing, the material transforms into a dark grey, metal-like substance that can be drilled, tapped, machined, filed, sanded, and painted to match the original surface. It is fully waterproof and resistant to petroleum, chemicals, and acids, and—unlike fast-setting alternatives—it can withstand extreme temperatures up to 550°F (287°C), making it ideal for engine blocks, exhaust manifolds, and high-heat machinery.

Key Features

  • Professional Capacity: Large 10 oz kit provides ample material for big jobs or frequent shop use.
  • Superior Strength: Delivers a massive 5020 PSI tensile strength for structural integrity.
  • High Heat Resistance: Withstands temperatures up to 550°F, perfect for engine and industrial applications.
  • Machinable Finish: Cures to a hard state that can be drilled, tapped, sanded, filed, and painted.
  • Chemical Resistance: Impervious to water, petroleum, acid, and other harsh shop fluids.
  • Versatile Bonding: Adheres permanently to metal, plastic, wood, concrete, ceramic, fiberglass, and tile.

What's Included

  • (1) 5 oz. Tube of Steel Reinforced Epoxy Resin
  • (1) 5 oz. Tube of Hardener

Specifications

Brand J-B Weld
Model Number 8281
Total Volume 10 fl oz
Tensile Strength 5,020 PSI
Shear Strength 5,020 PSI
Set Time 4 to 6 Hours
Full Cure Time 15 to 24 Hours
Max Temp Range Up to 550°F
Cured Color Dark Grey
Mix Ratio 1:1
Application Temperature Up to 120°F
Container Type Tube
Pro-Tip: The strength of the bond is directly related to surface preparation. Smooth surfaces can prevent the epoxy from gripping effectively. Always clean the repair area with a detergent or degreaser to remove oil, and then roughen the surface with coarse sandpaper or a file. This creates a "mechanical lock" that ensures the J-B Weld holds its full 5020 PSI capacity.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 80819396224

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donna eb
Pawtucket, US
★★★★★ 5
That it does what it says.
Love these they work do well on. My ipad, bought it 3 times as gifts for my friends.
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Reviewed in the United States on May 6, 2026
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Amazon Customer
Port Orchard, US
★★★★★ 3
Hard to hold
Color: Shades of Blue
The straps is really tight, so it is hard to hold and maneuver. Colors are what I expected. The ability to clean screens is OK
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Reviewed in the United States on June 4, 2025
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coolblue
Draper, US
★★★★★ 5
Cleans without damaging
Color: Blossom
Great little item for laptops, tablets, phone ,etc. Cleans the screen without any damage. Love the strap which makes it easier to use. The cleaning side is soft and smooth while the strap side is harder and makes it sturdier when cleaning. Another great product from Fintie!
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Reviewed in the United States on January 9, 2026
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DS
Grantham, US
★★★★★ 5
Great cleaning job!
Color: blooming hibiscus
This cleans your IPhone so it looks like glass. The finger prints do come back as easy. I have given these away and everyone likes them. Better than the cloth.
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Reviewed in the United States on February 23, 2026
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EnglishRose
Charlottesville, US
★★★★★ 5
Extremely helpful keeping remotes in order
Color: Blue, Size: Small
Nice quality remote control holder, makes it easy to find what you need, organized life is an easier life to live ! Great price too and it looks good ! This was a great little buy, I brought one for my Mom and another for the guest bedroom.
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Reviewed in the United States on December 18, 2025

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