Robert, AFAIK the main thing you want to look for is the CFM rating as well as tank capacity.
Obviously you don't want a compressor that can't keep up with the demand from your spray gun or other air tools.
It means the compressor would be running constantly to keep up.

Hopefully someone with painting expertise will confirm this.


1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.