I did some more painting today on my Nintendo cocktail (coverting to Mame as it was too far depleated to make it feasable to rebuild).
Word of advice: Make sure you let the temperature of the metal AND the paint to equalize in the enviornment you're going to be painting in.
I did this one other time screwing up painting a metal light fixture, but did it again today.
I primed over the weekend, then set the primed metal shell in the house (74 degree, ~40% RH a/c'd). I grabbed the can of flat paint from the basement (64 degree, ~20% RH a/c'd probably or less). Took it all out to the garage (77 degree ~50% RH) and opened the door into the sun. It was about 85 and ~60% RH outside)
I sanded for a little bit and let the paint warm up in the sun. When I shook it felt air temp, not cold like it had felt. Everything went fine until I oversprayed a few spots (too close, too long). Even though it is flat paint, there is enoug Toluene/Xylene/Acetone in it to become a bit glosy if oversprayed. Sure enough, about 5 spots inside the shell started blistering (cool effect if you WANT it not if you dont). About 1"x3" areas. Not crackle, but it lifted the primer into polygon like hills and valleys before drying. I'm sure it had to do with the temperature differential between air, metal, paint.
Anyway, just thought I'd warn everyone you want to equalize temperatures before painting.