I use PPG, never had a problem.

I always wipe my parts thoroughly with automotive wax and grease remover about 30 mins before spraying, so it can dry. Just before I spray I go over the whole thing with a tack cloth. Wet cleaner is just as bad as anything else.

That being said, I'm not an expert at finishing (YET!!!)

Welp gotta go get some practice, just changed all the servos in my plane. This could be interesting.

-Mike