I actually use JB Weld a lot and I can tell you that if they didn't use JB Weld, they used something pretty much identical. It was a two part formula with resin and hardener and it's the exact same color and consistency. I will tell you this much and I'm completely serious. I take more care to prepare the surfaces and to avoid touching the surfaces after cleaning with acetone. They did not rough up the metal to insure a good bond and they were touching the metal after they cleaned it. That metal was extremely glossy and highly polished, which does not provide a good surface for the epoxy to bond to.
