Bob, I read a bit about the pre-cat lacquer and apparently the catalyzer is added just before sale. So in essence, it is a two part paint, although the customer doesn't add anything. That is the reason for the short shelf life after it is purchased..

DuPont Lucite was a nitrocellulose lacquer and it had an infinite shelf life as far as I was concerned. I never experienced crazing, although the re-finish on my GTO (I didn't apply it) did experience some minor crazing before it was stolen.