Reply To: Airbrushing Varnishes

[warcoloursParticipant 438xp 2]

Yes, of course you need to thin the varnish, I use both thinner and flow improver and have never had a problem with clogging. Mixing the varnish, or any other colour, outside the cup is a very good general rule: often the paint can have small bits of congealed paint that can go into the cup inadvertently and clog the airbrush. If you mix the paint or varnish outside the cup it is easy to spot and remove these.
There is no special preparation needed to avoid frosting when airbrushing matt varnish: the fact is that you apply the varnish at a much lower pressure and at the same temperature of the room you are painting in and this is all that is needed to take care of the issue.