Its a 100% temperature issue.
Now being epoxy and not getting a chance to cure it will need more heat and for a lot longer period of time to finish curing out then a say a 2K primer painted the same time.
Past experience with these kind of problems I will suggest you need the panel exposed to around 140 degrees for four-five hours or a couple of weeks (minimum) at 75 degrees and up.
Here is something that could have contributed to your problem also.
Were having a cold spell here and I keep the one garage heated at all times due to the amount of paint I have in the garage.
The temp is set at 63 degrees because I'm not working on anything right now.
I just now took the laser reader and a gallon of paint on the work bench gave a reading of 63 degrees, a gallon in a box on the cement floor red 55 degrees and a new fender setting on the floor read 53 degrees.
If you have had the epoxy setting there for a while and its 55 degrees or less it is just plain not going to kick.
Last edited by BarryK; 11-21-2006 at 04:54 AM.