Nozzel questions

[hcomj]

I have a Mac hvlp sprayer at home and in the past I have tried to spray some polyester primer with the gun. The primer was way to thick. It barely came out of the gun. Well now I want to learn how to paint a car and I want to use urethane type paints. So Im still learning everything but I need to find out how to spray the primer so I can practice. The gun has a 1.5 tip. Is that what is common and it will work for urathane? Should I thin out the primer with something or do I need another tip? Or last am I just not doing anything right and I should be able to paint and primer with a 1.5 and not do any thining out of the paint or primer. I know this question is probably alot but Im wanting to get some primer in the gun to practice spraying it. Is the polyester primer thicker than urethane?? Thanks

 

[hcomj]

wrong catagory

sorry I see I put this in the wrong catagory. I guess Im really a newbie. :sillyme:

 

[crazycuda]

Yes poly primer is thicker then urethane. I have not had much luck spraying poly with anything other then a 2.0 tip. Reg urethane 2k primer will spray from a 1.5 tip but you might need to reduce it to get it to lay down nice. I prefer a 1.8 for any urethane 2k primers.
If you are spraying single stage enamel or urethane paint a 1.5 tip will work ok. If you are spraying base coat a 1.5 will be on the big side. 1.3 works good for base coats. I have never shot clear out of a 1.5 tip so I can't say what type of results you'll get. I prefer a 1.4 tip for clear but that is using my iwata or sata guns. My devilbiss hvlp gun sprays clears better with a 1.6 then a 1.4 but I prefer to use my Iwata for clear. And keep the devil for single stage paint.