paint booth

Kander, got any more car painting tips to share? I have an old wagon I'd like to spruce up to possibly sell. Not looking for perfection but something decent.Right now it has the familiar peeling silver paint.

First of all I should give the disclaimer that I'm not a bodyman, just a guy who's done a lot of do it your self stuff with a decent amount of success. Does it need rust repair and body work or just paint?