After I spray the paint thru the brush, I have a separate bottle with lacquer thinner in it that I spray thru the brush immediately after the paint. Then, I dissassemble the air brush and put the parts that came into contact with paint into a jar filled with lacquer thinner and let the parts sit for awhile. Then, I take the jar that had my paint in it when I was spraying and put some lacquer thinner in it and shake well. I then pour that lacquer thinner that I used to clean the jar into a larger (pickle) jar as waste. I then take a paper towel with a little bit of lacquer thinner on it and run it around in the jar that had the paint in it. All of these steps are based on that I have a suction air brush and not a gravity feed. The gun parts are are a lot easier to clean that way.