I have painted lots of cars with Binks #7 paint guns in the old days. An internally clean and adjusted suction gun like that can still do a nice job. I tried to find a suction HVLP gun that worked as well as a #7 and never found one. That's when I changed years ago to gravity feed HVLP paint guns. An HVLP gravity gun will use less paint, put less out into air pollution and can atomize better for a smoother finish.
Much of the difficulty in painting is with technique, selecting the correct material and mix ratios, clean gun interior passages, clean compressed and ambient air. Paint guns are often blamed for technique or other problems.
If your results are inconsistant, figure out what is changing to turn from good to bad. Clean the gun the best you can. Check the spray pattern to be a nice symetrical tall thin oval. Make sure your activator and reducer are the correct choice for the current temperature. Practice holding the gun at the same distance from the surface and making the same overlaps consistantly. You can practice spraying plain water onto non-glossy cardboard to see if you are getting wet and dry spots with your technique.
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Jim "Oldgas" Potts
Your host and moderator
