Ok I just got started trying to use craft paints with my airbrush, need some help, went thru all the videos on utube and none explained problems, just how glossy they turn out. Heres the problem, sprayed the first mist coat and it looked good, now the second mist coat went on and out of nowhere spots started forming like there was oil on it. so I wiped it off and started over, same results!!! Any one got anything? Thanks Robert