I have a friend that does some body work and painting that says he sprays clear at 20 psi. I told him that I spray Euro 2020 all the time at 30 psi, I went to his house today and he showed me his clear gun and it is an Iwata LPH 400 just like mine but he uses Upol clear "I can't remember the exact one" and he said he slicks it out with no problem. I am no pro but isn't 20 psi too low to spray clear?
Spraying clear at 20 psi
- Thread starter JC Daniel
- Start date
crashtech
Combo Man & Mod
It might be a lower solids clear, if so it might spray better at that pressure than a true high solids clear would. The instructions for the LPH400 call for 16 PSI, so there's that, not that anyone abides by that recommendation. I have been spraying at 28 PSI with a full trigger pull.
Oh, I should mention that gauges tend to be wildly inaccurate, he might be spraying way over 20 PSI if his gauge is busted!
Oh, I should mention that gauges tend to be wildly inaccurate, he might be spraying way over 20 PSI if his gauge is busted!
RenewAP
Promoted Users
It's all about atomization, generally speaking, the smaller the tip size, the lower you can go with the pressure and still avoid orange peel. I run my LPH400 with a 1.3 at 35 psi. Gun speed and panel distance also have a impact. Higher pressure will give a better finish but more overspray (wasted product) Lower pressure will use less product but takes more care to get a good finish. Of course the main thing is the gun and product recommendation as some guns are most efficient at lower pressures then others, and each product sprays different.
'68 Coronet R/T
Oldtimer
With the LPH 400 Silver Cap 1.4 tip, I spray base and epoxy at 22-24 PSI. Clear I bump up to 26-28 PSI.
Setting the spray pattern on paper, holding the gun at 4-5" distance, gives you the added assurance of proper atomization.
Setting the spray pattern on paper, holding the gun at 4-5" distance, gives you the added assurance of proper atomization.