I used to use lacquer thinner when I paint with enamels. Mainly, I use Testors enamels. Lacquer thinner works well, but I discovered Enamel Reducer works a heck of a lot better, along with Enamel Catalyst/Hardener. I thin my enamels with the Reducer just like I would with any other thinner. To the consistency of milk. I leave a little room though, in the airbrush bottle and add an eyedropper full of the Catalyst/Hardener. Instead of a month wait for the enamel to gas out and harden, it's ready to go in 7 days or less. The Catalyst/Hardener increases gloss, increases hardness and considerably reduces dry time. I find that I have less need for a clear coat using this process. I clean the airbrush using cheap lacquer thinner. The products mentioned are Tractor Supply house brand called "Majic". I also use lacquer paints and my thinner of choice is Dupont #3602S. I've never used acrylics to paint a body so I can't offer anything for that medium.