i have an air brush with a compressor.. its a Paasche. i have a bottle of touch up paint from my dealer and also a spray can full of color matched paint from paintscratch.com. what would i need to do to take car of some chips and scratches on my car? the paint from the touch up bottle seems very thick. how would i need to prep the surface? and how would i get a nice clear coat over the area once its taken care of?