we use three different airbrush sizes, a small paasche external mixer, a bigger gun usually used for car paint jobs, and a wagner airless. since my first career was in graphic design, i used to do airbush illustrations and photo retouching long before photoshop became an option. the thing that john mentioned when he uses his small airbrush is called "overspray" and it occurs if your pressure level is way to high, all you have to do is turning the pressure down a bit. i like to work with the paasche because it gives me a great control over what iam doing. i can do color transitions, lines, polka dots, and even use some paper maskings for cool marble like effects. the big guns are way to big for that kind of control. if i find the time i do some demo shells, so you caan see what i mean :-)
btw. a few weeks ago we had the advanced chocolates course at callebaut with jp wybauw. it was just cool. i put the pics up as soon as i find some time...
Scneich, it would be amazing to see your spraying demo's. I have been a member of Egullet for not quite a year now and have learned so much from you. I don't know how many times I looked at your lab set-up and your Selmi demo photos. So informative!
So just letting you know there's another one keeping an eye on this thread for your demo! (No pressure at all!!!)
Thanks for being so willing to share.