Re: Is there any chemical that eats Bondo?
Paint stripper will eat it. It does not work as well on bondo as it does on paint, but it will take it off. Outside of that, a grinder with a flex pad, around 36 grit will make short work of bondo, just be careful to not remove too much metal. You can take 18 guage to 20 guage in short order if you get too carried away. Check out the classic enterprises side panels, I think their body parts are pretty reasonably priced and are nice heavy guage items. I have their replacement front floor, and it looks to be 16 guage, quite a bit stronger than the stock floor. I am sure that the torch would also soften the bondo enough that you can get it out with a razot scraper.
Cage Up, Wheels Down
All my Jeeps are in pieces! Except for one!!