RE: Black Magic v2 builder's thread! *Updated*
It's definitely a chemical reaction of some sort. Since paint usually doesn't hate epoxy, it has to be a reaction with something else. Could be the mold release was heavier than normal. I'm not sure, I haven't had that problem, and have yet to hear of anyone else having that problem. It's possible the Lustrekote is contaminated. Unlikely, but possible.
Let me know how it comes out. if it comes down to it, I'll send you another belly pan (scrubbed clean before it leaves, then you do it again...)
Also I'd really like you to post a pic of that mount when you can. I still can't believe that...
-Mike