How would you like to polish a nine-year old oxidized magnesium Indy Car wheel? That's exactly what I did just to prove the effectiveness of our polish. They're big, awfully wide, yet look fantastic when fully polished. It's about the toughest test I can imagine. Even if you have aluminum wheels that haven't been clear coated, this is the polish you should reach for first. Perfect for all of your automotive, marine, and aircraft applications. Its water solubility makes it easy to rinse off after use. Great for hand or machine polishing applications. Safe on non-clear coated aluminum, steel, magnesium, copper, stainless steel and most metal surfaces. Try our 100% Cotton Wipes for hand application or our Polishing Cones for machine polishing.