Mighty Putty Epoxy

I've used Mighty Putty Epoxy a couple of times trying to fix things that broke, and so far, I haven't been too lucky. So, Not sure yet. After a few days it breaks and doesn't hold up. I wouldn't count on using it to substitute a chain link to pull a truck! However, I have used other epoxy products and I like handling this one. Maybe the things that I've tried to fix are of a weird shape or material and that's the reason it didn't work. I'll keep trying though, I still got a couple of sticks of the stuff left.