Serious Education ... plus the most fun you can have in metal finishing.
We have bought some old aluminum alloy wheels and would like to clean them up and polish them. I know semi companies use an acid to clean wheels.
Any idea on which acid and which strength it should be?Peg G [last name deleted for privacy by Editor]
- Fairbury, Nebraska, USA
Ed. note: yes, some companies clean aluminum with hydrofluoric acid, which is a very dangerous process since hydrofluoric acid frightens experienced professionals. But for real shine, alloy wheels must be mechanically polished and buffed, not dipped in a magic potion, Peg.