Originally Posted by merkaba
I have one other question (which may also help others). When you spray how do you determine your adjustment on the spray gun? On this gun I'm using (the $50 one) there is a adjustment in the back. When i sprayed it was almost all the way out...not much further before it would have twisted all the way off. Is that OK? Should i have been spraying with a different setting? There is a lot of room to turn it...so I'm wondering if that has an effect on how the paint gets sprayed.
Usually, such controls at the rear are of the Fluid Flow Rate variety. Then again it could be air flow.
Most air flow controls do it simply by restricting the amount of pull back you can do on the trigger.
In all such Electric HLVP spray applications where one is Dusting the screen with very diluted paint, a fully opened air & fluid control...if they exist...is essential. The size of the Needle dictates the density of the pattern...pressure determines the dispersion. Small orifice, high pressure, directional air diffusion all lead to a 12" high pattern that is at once a fine mist....but also a very wet mix.
The way the initial 1st-2nd-3rd Dusters go on, they always leave behind a freckled look on the substrate. But each Duster builds upon the former, filling in the spaces. The paint may look bumpy when first applied, and retain that look out to the 4th coat, but by the 6th and 7th coats, coverage becomes more apparent.
The worst thing to do is to rush between coats and spray before the prior coat is dry. A perfect spay effort can quickly go to Orange Peel....or worse, a slide.
Second worst would be to hasten the number of coats process and put up a slower pass to increase coverage. Runs or severe sags. Well...maybe that's "the worst". On the end, the absolute worst thing to do is to "Do First, Ask Questions Later"....joined at the hip with "Not Following Directions".