Paint, being one of the last things you do on a model (besides final assembly), isn't the place to experiment, at least on the model itself. Better to test first on something expendable. Like Ed Roth once said, "don't mutilate unless its cheap!"
Not that you can't use cheap paint...you just have to test first. There are videos all over YouTube dealing with airbrushing cheap craft paints, and every so often you can turn up automotive touch-up spray cans at the closeout stores. You only need to experiment beforehand to see what works with what. Every so often though, you'll still hear about someone who took two or three steps backward on a project after just grabbing the first spray can within reach and blasting away...