Trying to put white Testers paint into my airbrush, but was too thick, wouldn't come out, and would just harden / clog my airbrush. So I tried mixing it with water, wasnt enough. So for some reason I put a few drops of water in the bottle, same result. It's just some thick, syrupy goopy mess that goes into my airbrush. I did some research and it turns out enamel paint with water is a no-no. I dont have paint thinner with me currently, what's your suggestion?