New paint problem

[Russell Reay]

After a long period of inactivity, I was finally able to put a top coat on my fenders. This is on top of two coats of Evercoat building primer, and two coats of Duplicolor gray primer. My topcoat is single stage urethane mixed 8:4:1 and applied with an ordinary auto spray gun (not hvlp) at 35 psi. I applied three coats. After seeing the disappointing result, I searched for the product data sheet, and see that my only deviation from instructions were that I should have sprayed at ~25 psi. The photos are accurate depictions of how the fenders appear in reality. My rear fenders came out much better, with very few patches of flat finish. I am not a skilled painter (duh!), but would like someone who is to tell me what I did wrong. I can always buy more paint, but prefer not to repeat the mistakes.