Did the air compressor used to spray the paint struggle to keep up causing
the pressure at the gun to vary? Air pressure variance is the major cause of
mottling in a metallic finish. For a big job like a complete repaint on a
large vehicle you need at least a 6 &1/2 hp motor with a 60 gal tank.
Something to keep in mind for us do-it-yourselfers.

Tom Smith
83.5 Westie