Thanks for all of the great info in this post. I see that most people are using OA for chrome parts. Do you also use it for painted parts (frames, fenders, etc.)? Does anyone have any before and after photos of the results on a rusty frame or fender?

I have a 1959 Schwinn Panther II that I want to restore and am looking for pointers. I want to keep the original paint, but need to remove as much surface rust as I can.

Below are three photos so you can see the rust that I have. 1) Straight from the yard sale. 2) After a light water and brush wash. 3) Original paint under 1/2 tank.

Any advice is appreciated.