Wow - nice paint DK. Man, I wish we could pick our cars up off the boat. I wonder if you can pick up a car directly at a US factory or, if they are taken to a depot, from the depot.
No, I had not just used Z1. I Z1ed, then have done about five coats of Z2 over two weeks. I think you may be right about the bonding. It may also be true that being inside, in spite of it being warm, the earlier coats may not have cured adaquately in the two days I am allowing between coats.
Again, I don't see any big problem with this or any defect with Z.
I just applied a new coat, that was very thin. I will leave it on over night, so it really dries, then wipe it off tomorrow. Then, let another day go by, then see where it is at.
Bye the way, I picked up a couple small, fine lines on the panel (not enough to worry over, let alone do anything about), from a light brush of some metal-wrapped, flexible tubing against the panel. Paint is way too delicate. With all the science we have, the problem should have been solved decades ago.