I was wondering if anyone could offer some suggestions/advice on airbrushing Tamiya acrylics. Long story short...when I try to lay down a wet gloss coat using my airbrush, there seems to be small spots on the kit where the freshly spray paint would not cover. So I'll get tiny pits in the freshly sprayed layer.
I'm not sure what I'm doing wrong. First, I thought the surface of the model might be contaminated. So I usually wash the kit (primed at this point) in soapy water and scrub it with a toothbrush and rinse it for a minute or two. Then I spray distilled water so it doesn't dry with spots. At this point, I handle the kit with latex gloves on and leave it to dry for a day or two. When it comes to painting the kit, I would thin the tamiya acrylic paint with the tamiya thinner about
50/50. Set my compressor to 10-12 psi and sprayed the first mist coat through the Iwata airbrush. Clear out the paint from the airbrush by spraying rubbing alcohol through the airbrush. Wait 15 minutes and do the same thing with the second mist coat. Everything seems fine at this point. After 15-20 minutes, I begin to spray the wet coat and this is where my problem with small pits in the paint begin to show up. I can't figure out what I'm doing wrong. Any help would be greatly appreciated. Sorry about the long post guys.