Indeed - you have no chance spraying liquid mask with your paint airbrush !
I use a car spray gun to spray the mask. Works a treat - but needs quite high pressure and makes my Bambi compressor work quite hard!!
Also - it's a pig to clean out the gun if you don't flush it straight away with plenty of water.
Personally I will never brush liquid mask on again - with the gun it goes on so smooth you almost can't tell it's on. If it wasn't green it would be invisible it's that flat
