J-B Weld 8272UK MarineWeld Tubes 57g (2oz),Grey

used to stick magnets back into a magneto on a motorcycle, charging system works now and combined with the putty the magnets will never move

This really does the job. Used when our old porcelain toilet cistern developed a crack and started weeping from it. As an emergency measure I drained it dry, plastered some of this MarineWeld inside along the crack and a good margin either side, left it dry for the recommended 15 hours and refilled. That was a full 5 years ago with not a trace of water escaping. Then a fine crack appeared in another part of the cistern, and I did the same thing again and used up the other half of the original tubes which had sat in the garage and were still perfectly usable. Again, perfect result, no more weeping cistern. If I replace the cistern I'll have to completely replace all the fittings in that room as they're all matching and well over 30 years old and still otherwise performing absolutely fine. Massive save, thanks JBWeld, brilliant product! I bought it again because I always want some handy in case of future need :o) Originally recommended by a friend who clearly knows his materials!

Seems doing the job at 1st glance. Easy to use, mix, comes out as grey colour, can be worked with moist hands to the shape you want, smooths easily again with moist assistance, handy tubes at package, I hope water resistance will last for long. Attention, when dries can break easily if knocked hard, it is the same with all hard materials-what cannot bend breaks. Bit expensive in price. Useful for the purpose. Would buy again.

Incredible stuff, had helped fix many a little hole on my 20 year old truck 👌🏽

Needed to repair a cracked granite sink which had completely split in 2 in the middle. After doing some research I settled on buying this JB Weld marine epoxy. Super easy to mix and apply, it is a dark grey/graphite colour when mixed at the recommended ratio. As this is not a fast setting epoxy, after application, I just joined the 2 pieces together and left it alone on the floor. I tested it about 12hrs later and it was set however I left it for a full day before handling it. Given the weight of the granite sink this has extremely strong adhesion - the drainer section which had cracked off was able to suspend mid air with no issues when I placed the sink up right on the floor. I installed the sink a couple of weeks later so it got some additional cure time though not required. Very happy as I was able to fix the sink for less than £6 rather than buying a new one! I would recommend taping and wiping off any smears/excess asap which I sadly didn't do. It's hard remove once it is set and I was unable to remove the smears I made as shown in the photos.

Wasn't what I was expecting, more of a paste than a epoxy , like chewing gum, hard to work with.

Excellent adhesive

I used this JB Weld to repair a damaged diff housing which had corroded and was leaking diff oil. The repair was fiddly and time consuming and the JB Weld was only one part of the overall repair process. However, it did it's part brilliantly and worked exactly as I'd hoped. The differential leak has completely stopped and the car went on to pass its MOT - hurrah!!. With careful planning I can recommend JB Weld for a variety of automotive and metalwork type jobs. I haven't used this for any kind of marine repair but would imagine that it will do a great job in this arena as well