The first image is a before and after the electrolysis bath. After the bath I scrubbed it with a wire brush. It removed about 85 percent of the rust during the bath. As impatient as i am i finished it off with a wire wheel and a drill. If my solution was new it would have removed all the rust
Second photo is after a wire wheel and a coat of cast iron high heat paint. Then i replaced the sticker with the one I made today. Oh this rotor is the original GM part cast Feb 24 1971. Haven't measured it but the minimum thickness is 1.215 (says so on rotor). For you guys still wet behind the ears the groove in the center is the cooling groove added at the factory. I've seen it on Chevelles, Trucks, Monte's, and others from the 70's.
