removing undercoating

I used a propane torch and it came right off. Everything else like rust and paint I wire wheeled down to the metal.

This was my work attire. Cover every part of your body that you can. I looked like a goober but I was protected with safety goggles plus a face shield. It was the nastiest job I had to do on the car so far. Watch those wires on the high speed wire wheels too. They will eventually all come out and THEY WILL penetrate your skin. One flung off and was deep in my arm. Plus the wire was made with a twist in it. That made some fun times pulling that back out.