What tip size do you guy's use for ss urethane paint.Had a 1.4 in the gun,can't get the paint to flow good regardless of settings.I have a 1.8 tip for my gun,would that help?Getting alot of orange peel

 

Not enough info. WHAT GRADE of reducer/thinner/hardener are you using. Usually orange peel can be due to trying to pound it and it drying/flashing over to quick and NOT flowing out.

Depending on your air flow, and youo paint gun...going one step slower than current temperature conditions ususally aids in applying the product...without it drying so fast that you can not get around the car.

Hopefully you are using a test panel to figure this out. Rookie paint mistake is going straight to the car and painting when you don't know if it is going to even work or not. Distance from the panel, tavel speed, thinner/reducer/hardener selection, gun set-up ....all need to be observed and respected if you are trying to paint a car.

Gravity feed or suction feed gun?

And I would not use the 1.8 head. You could but you would have to cut back or test how much material to have come out when you spray.

"DUB"

 

A 1.4 should get you a nice finish, but a 1.8, thats just like mopping it on.

Find you a junk fender somewhere and practice your technique with the 1.4, you just may find your going to fast and to far away.

 

Thanx for the replies guy's.More info:The gun is a starting line gravity feed hvlp devilbis,tried multiple air pressure settings,fluid settings,distance from test panel,speed of passes.The paint is not (top of the line paint).It is trinity 1945 ss urethane mayan gold mettallic w/medium reducer and universal activator.If I try to spray at say 6 to 8 inches away from my test panel it lays out very dry.If I go down to 4 inches from the panel and slow down my pass speed I can get on wet but it's like Dub said I'm pounding it on to keep it wet.Mix ratio is suppose to be 8:2:1.I tried adding a liitle more reducer aprox. 8:2 1/2:1 that helped it flow a little better but still not good.I sprayed ss acrylic enamel with this gun already(dupont centari)had pretty good results.It just seems to me the ss urethane I'm working with now is too thick.I'm wondering if maybe I should try reducing it a little more.

 

For what it is worth. I have often times found that in the system I use...because I also use gravity feed HVLP paint guns. I often times will use a hardener( activator) and a reducer (thinner) that is ONE GRADE SLOWER that the current temperature conditions.

The reason for this is to allow the product to flow...and I do not have to worry about "pounding-it". I will shoot it with some slight texture...and when I am ready for the next coat....the hardener(slow) and reducer(very high temp) ( for example:current air temperature being 90+ degrees F) will have flowed out and leveled itself.

TRY this on a test panel...because when you shot your acrylic enamel....that stuff flows for some time ( if mixed correctly for current temperature conditions)

Play with it some more. ALSO try threading in your FLUID control all the way IN...and then backing it out 2 1/2 turns with your 1.4 head set-up on the gun. Adjust in or out from there. You should not need a FULL TRIGGER to spray this stuff. Just giving you thoughts on what I would do IF I had to spray this stuff. Air pressure should be at or near 45 psi at the gun...but check your product information sheet to make sure. Distance and travel speed will be up to you when you test. JUST BE CONSISTANT in what you do....because if you are changing "things" each and every time you make a pass on your test panel...and not following a procedure...you will have a hard time in getting this stuff "dialed-in".

"DUB"

 

I will try you're suggestions Dub,this is the first time i ever tried to shoot urethane,obviously there is a little more of a learning curve with urethane than other types of paint.THANX Will keep you posted on results.