I am spraying 2k primer with a finishline hvlp gun with a 1.8 tip. I set the regulator at the compressor at 45 psi and the regulator at the gun at 20 psi with the trigger pulled. Trying to hold the gun at 6". I seem to be getting a lot of orange peel. When I block the primer so that all traces of peel are gone, it seems like I am sanding most of the primer off. Can anyone offer me any tips to get rid of it? Will a sealer hide some of the orange peel?