Not much. I paint about as well as my buddy fixes teeth…. I do know you have to paint the plane black, then clear, then you spray the stuff super thin. After that, you put a binder over the top, then its durable. Do your decals and weathering, then clear. I think you may put the binder on again after the black/clear..can't remember. I took a video of him doing it, I'll try to post.
http://youtu.be/mXgcww5J4LU