Originally Posted by rts
It says "Use on cabinetry, chairs, trim, doors, decks, outdoor furniture, yard play sets, metal hobby toys, and difficult to paint surfaces to name a few." but drywall is not included. Will it be good enough to paint a screen on a nice condition drywall?
I own one and use it for such. I also own a Wagner "Max", 2 older Control Sprays, 2 "Double Dutys", and 1 Graco 2900. All have different rates of spray volume, and size Needle / Tips. But all are of the HVLP design.
HVLP Guns are primarily used to put a fine finish on surfaces. It is up to the DIY'er to make any surface prepared to receive such a finish. Drywall that itself is not pitted, cracked, or rough textured usually need only to be sanded lightly, primed, sanded slightly again, the is ready to be able to receive it's finish.
Of course, the DIY'ers spray technique is going to weigh in heavily, and that is why so much has been written, and videos shown of how to do so in the correct manner