Hello eveyone, I am new here.......I do custom paint and airbrush for a living. I have to second the motion here that pizz made. I started out painting deer, fish etc. when doing taxidermy work, and used Polytranspar Laquer based.....loved it. Tried waterbase and didnt care for it except for doing Tees. I Have used createx, aqua-flow, and spectratex (Badger) waterbased textile paints for doing T-shirts and aqua-flow and spectratex is my choice. For eveything else I use solvent based PPG basecoat along with urethane clear coats. I have 5 airbrushes for my solvent base and about 24 for waterbased T-shirt paint.
My Tshirt easel has 20 airbrushes on it with 12 being iwatas that I haven't cleaned in probly 8 months and can go pick em up and pick the end of the needle, blast a few times and spray away. Iwatas will spray createx fine depending on the needle size you have. All my textile brushes have a .005 needle, if your trying to shoot it through like a .003, yes I can see the problems you have. Createx also makes a waterbased line that alot of guy's use for hard surface that can't spray solvent based, called "Auto Air". I have never used it but have read you need to use a hair dryer to heat and dry each coat.
I haven't built any baits "yet" but am wanting to and my automotive solvent based is what I am planning on using for that. I do have a 14x26 spray booth in my shop so it's not a big deal. I know of some guys that have done hard surface stuff with the wicked line createx and with E-Tac waterbased and cleared it with uro clear.......just not my cup of tea. As Pizz said, nothing sprays like uro's, but it is solvent based.