I have used the 2K over Rustoleum Universal Pearl Enamel, easy to use and looked good when done. It is basically a one time use product though
Yeah, I would think you would have as many projects laid out and dusted off when you mix an epoxy can @ $25 a pop. But comparing to some of the nice duplicolors they're $15 any more, and it sounds like better paint and you're wasting your time to use anything other than the two part on a tank.