I used a "paint removing" wheel that you put in a hand held drill. 3M makes them and they are in Walmart, should be in the auto section where the paint and bodywork is. It does a pretty good job and is a lot cleaner then chemical strippers. Just dont stay on one spot too long as it will heat up the metal and could cause it to warp. I did the outside of the barracuda down to metal. It will take out puddy too.