I posted the following in another thread. I don't think that one got a lot of looks so I'm reposting here. Hijacking threads like I did never works well. \ Concerning 3M or other panel adhesives: I have a possible use for that stuff, see what you think: My56 Dodge PU has the normal rust in the front fender, vertical strip next to the edge of the rear. To do a 'proper' repair would mean a complete rear edge replacement. That means a bent strengthening lip on a curved edge that must match the door curvature. Not easy for me to do. So, I was thinking of trimming off all the really thin stuff, sandblasting the inner surface and applying a patch to the back. That way I could use the very rear of the original to maintain the curve, and meet the door. Then grind off any exposed adhesive and finish with Kitty Hair filler, Rage and primer. The finished filler would only be the depth of the original metal thickness. Whatcha think?