6/25/2013 8:42 AM
Edited Date/Time: 6/25/2013 8:45 AM
The problem with chrome plating aluminum is that chrome is far more resistant to corrosion than aluminum. You can't plate over a corrosion resistant barrier like anodizing, and you have to put a thin layer of another metal over the aluminum to get it to stick, because chrome will not stick to aluminum. The other metal is usually copper, if memory serves. Once chrome plated wheels get wet, the corrosion starts under neath the chrome. The aluminum will corrode more rapidly because chrome is the less reactive metal by far, and aluminum creates a grayish white powder as it corrodes called aluminum oxide. As the powder builds, the chrome has nothing to stick to, and it flakes off. Also, chrome is very poisonous as Sir Topum hat stated above, which is another reason they end up going with a less toxic solution. If you want to make money, move to a county in a state that has relaxed EPA laws and set up a plating shop there. Then just make sure you dispose of your waste in a manner that is above the state and county regulations, and you look like a hero to your clients as well as the area you're in! Win!
Edit: I just realized you're both in Great Brittain, so the last part probably wouldn't work for you at all, haha. Ignore that part.
Refs: Tito24, RiverSideRider, Stussy, Nettyspaghetti, Daniel24, Freddydapice, BrokenBMX, SuperstarDK, HardBMX_Tim. There's more, but I'm too lazy to look them up, haha.