well gchalifoux, have you checked out the two sections on airbrushing cleaning available on this forum? If you go to this
how to clean your airbrush
You will find all the info you need, there is a part one and a part two on airbrush cleaning, with pics and vids, so it is really helpful, there are a heap more sections in the tech assistance forum, so it's worth while looking through to see what else you can find out,
JonO