Removing corrosion from aluminum? - Classic Toy Trains Magazine

I use Mother's Mag Wheel polish as well, and did exactly as John does with a toothbrush. Don't let the polish dry. I found the best method was to disassemble the entire car so I was just working on the aluminum shell. After polishing, there were still some residue between the fins, no matter how much I tried to remove it, so I rinsed the shell under a faucet while using a toothbrush. Worked great! Toothpicks also work well for removing residue.

Those finger nail files are also great for removing scratches in the aluminum fins. I had a ton of them. Most sanded out smooth.

DO NOT use a brass wire wheel!!! It will turn the aluminum brass-colored! Don't use a steel wire wheel because it will leave pieces that can rust and stain the aluminum. A stainless steel wire wheel can be used safely on aluminum (with proper eye protection).

Best of luck, Jim.