I just painted my wife's '55 using restoration shop single stage Acrylic Enamel Hot Rod Satin Black. I've never ran into this problem, but I'm getting tiny bubbles forming as soon as I spray it on. I'm using a Devilbiss Starting line with a 1.3 tip, also tried a 1.8 tip. I've tried to adjust air pressure, change tips, and I know my gun isn't the best in the world, but the epoxy primer went down really nice, and I've never had this problem. Anyone got any ideas what could be causing this???