Hi guys,
I am beginner in airbrush painting and I wonder what cleaning actions should be carried out on the airbrush between 2 primer coats (need to wait about 30 minutes) ?
With that time between coats I'm assuming it's a water based primer. If so I'd do a quick clean:
Empty out as much as you can, put some water in the cup and blast it through. Wipe out the cup with some tissue and repeat.
Make sure there's no dried primer on the tip, then I'd leave the cup full of water until you're ready for the next coat (it'll prevent any residue drying in the airbrush.)
Others may have different methods but that's what I'd do.
I would do the same as Andy except that after flushing through with water a couple of times I would put airbrush cleaner in the cup, spray a little through, wipe the needle/nozzle with a soft brush dipped in the cleaner and then leave the cup with a bit of cleaner in it.