I’ve recently got an airbrush and am currently using propel cans. They are expensive in Australia [V] ( i don’t know about the states). So I have a compresser allreday, although it is just a regular household one, simply getting a regulater will make it suitable for airbrush use by making it a regular flow, wont it?. I know about moisture traps, so you don’t have to tell me that.
Yes, a general purpose compressor will work just fine as long as you can regulate the pressure down to something usable for an airbrush. I use a 15-gallon, 150 psi general purpose compressor and regulate it down to about 15 psi for airbrushing.
Something that will help, especially if you want to do fine detail work, is a stilling tank. This can be anything from a true storage tank to a small tank in the line. This removes the pulsations from the compressor. The tank goes before the regulator.
If the compressor does not have a tank, one can be fitted from an old scuba tank or other gas cylinder and fittings available in most hardware stores.
Run a line to your work area and put the regulator at the “business” end. That way you can control the pressure without interrupting the work flow. I have a moisture trap attached to the regulator, then the line to the AB. Works great.