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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:
- 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
4.6 ★★★★★
Based on 1662 reviews
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Product Reviews
★★★★★ 5
Fun toy
Pattern Name: Checkered
This was a very fun toy but didn't last too long with our 1-year-old lab who is an aggressive chewer.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Love this set!!!
Size: Medium (2.5"), Style: Fetch Pack 1
I was trying to figure out which of the many different balls this company offers, and I was getting frustrated but then i was SOOOO happy to see they had multiple sets that had multiple of the different balls they offer!! I bought this set and the other set they offer, but this one was my favorite and I think my dogs too! The orange ball works great and bounces just high enough that it doesn’t clear our patio wall, but enough for him to go and jump up to retrieve. But the glow in the dark ball is his favorite! Both me and my pomsky were blown away how we brought the glow in the dark ball outside just as the sun was going down, and when we brought it back inside it was BRIGHT AND GLOWY!!! Even with the sun going down and not much light left!! He loves to play with it in the house after it’s all glowy from the sun. Sometimes we even glow it up under a light inside the house if it’s dark outside, and he will play with it outside in the dark haha he loves it!!! And I think it’s pretty cool too!! All of the balls this company overs are VERY durable! We realized early on that we cannot give our dog regular tennis balls cuz his favorite thing to do is tear the outside fabric off!! So we were trying to figure out what company has the best balls for dogs so they can’t sit there and try to pry them apart, and we found this company!! We have already bought from them about 3 times and all of their balls are durable and bounce how they say they will bounce!! They have the super bouncers and the glow in the dark one and the one with angles that will bounce in different directions and the ones you can throw REALLYY far! Overall, all the balls from this company are very durable, bounce really good, and keep my dog occupied without allowing him to sit there and tear it apart!!! Which i love cuz I do not like when he stops playing with us to sit there and try to take off the fabric, cuz then he could swallow it! So always buy the balls from this company!!! They are the best and most durable!!!! Also plenty soft for your dogs mouth so they can chew on it a bit and it won’t hurt their teeth/gums!
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Reviewed in the United States on July 28, 2024
★★★★★ 5
Good sturdy balls
Size: Medium (2.5"), Style: Fetch Pack 2
My dogs love balls! Unfortunately, they tend to chew them up very quickly. My Belgium Malinois chews on this all the time, and it has held up pretty well. Good option for chewers
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Fetch Perfection
Size: Medium (2.5"), Style: Fetch Pack 2
If you’re anything like me, fetch is the ultimate game with your furry companion. The Chuckit! Dog Fetch Ball Medley has taken our playtime to the next level with its variety and durability. This 3-pack of medium-sized, ultra-rugged balls is perfect for endless games of fetch without worrying about wear and tear.
I love how each ball has a unique texture and color, keeping my dog engaged and excited every time. The medium size is just right for energetic dogs, allowing for long throws and big leaps. Plus, the rugged design means these balls can withstand even the most enthusiastic chewers and rough play sessions, making them a great investment for active pets.
However, the vibrant colors can sometimes make them easy to lose in green grass or sandy beaches, but a good game of hide-and-seek with your dog is a small price to pay for such fantastic fetch balls. Additionally, while they’re durable, no ball is completely indestructible, so occasional replacements might be necessary for the most aggressive players.
Overall, the Chuckit! Dog Fetch Ball Medley is a must-have for any dog owner looking to enhance their playtime. They’re fun, durable, and keep both you and your dog entertained for hours. A solid 5-star rating for their quality and variety, with a tiny star lost to their occasionally elusive colors.
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Reviewed in the United States on October 23, 2024
★★★★★ 5
great ball!
Size: Medium (2.5"), Style: Fetch Pack 2
My pitbull LOVES these. She is a power chewer and tough on balls and toys and tends to go through them insanely quick. She is still on her first ball out of this pack and its been at least two months. It is a little small for her mouth but she doesn’t seem to mind, as it has quickly become one of her favorites. Not a loud ball and it doesn’t usually make that wet chewy noise when shes going to town on it which is huge for me😂😂 Safe for my pittie so i’d imagine a smaller dog would be just fine.
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Reviewed in the United States on April 21, 2026
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