ok doing roof of a 72 coupe in 2 sections, front and back. Starting with the front since that is where the rust seemed the most threatining. Have it sanded and stripped from window to 8 in. back all the way across. There are several 'dimples' across the top in a couple of spots, with those I sanded down to the sheet metal 1 1/2 inches out around the dimples. Sanding was done with a 60 grit paper to allow plenty of grip for the bondo. I could not locate POR 15 and ended up going with Klean-Strip Rust Remover and is design to desolve and neutrlize rust. Letting it sit and desolve rust for another 45 minutes then on to bondo/filler. Any suggestions or concerns please leave a post.
