Here is what i'm doing for undercoat. The goal was uniform appearance and protection. I used a propane torch and putty knife to remove the old road tar down to the orig blue paint. Then 80 grit on a dual action sander. Then primer and a thin coat of 3m bodyschutz from a gun. To finish it off I rattle canned a topcoat of gloss black (if you can call the underside of a fender topcoated). The result was clean and hid all the minor hammer marks from metal work.[IMG]http://i867.photobucket.com/albums/ab231/marko27271/SAM_4798_zpseufvua5x.jpg[/IMG][IMG]http://i867.photobucket.com/albums/ab231/marko27271/SAM_4812%20-%20Copy_zpsoww0ocol.jpg[/IMG][IMG]http://i867.photobucket.com/albums/ab231/marko27271/SAM_4814_zpsxfld3tmi.jpg[/IMG]


Have you ever noticed that anyone driving slower than you is an idiot and anyone driving faster than you is a maniac? - George Carlin