The short answer is yes you can clearcoat your Airstream once you strip and polish. It is something you probably want to have done professionally, that is unless you have the equipment and means to DIY.
Carl, Elaine & Finn The Beagle
2006 30' Classic W Slide & Limited Package Katarina
2006 GMC 2500 HD 6.6 Turbo Diesel Crew Cab 8' Bed
NQ3U (was KB3UOM)