Re: Paint questions
1. I think you nailed the cause for your pimples/blisters. If you plan on painting very much, an air dryer would be a worthwhile investment.
2. Sandpaper finish could be a number of things. First one comes to mind is gun was too far from the paint surface allowing paint to dry before it reached the panel. Next concern would be not enough thinner. Measure everything until you get the hang of it.
What model gun are your using and what pressure are your spraying?
That's good primer you're using - Don't scrimp on the paint respirator.
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