I wonder if you just put some build primer on before you bondo? Then just don't sand all the way down? Need to get that etch primer on the metal. Maybe cover the bondo, etch primer then build primer and bondo?...but that's only a guess. Hoping to learn something here too.
Old Scool that's a great looking parts pile! Love that sprocket.
Old Scool that's a great looking parts pile! Love that sprocket.