When Doc posted about the aluminum cleaner he found with dilute hydroflouric acid, I hunted around and found "Mag Wheel Cleaner" at NAPA autoparts which has the same mixture.
You spray it on, immediately start rubbing, and then wipe it back off. You end up with shiny aluminum without a ton of rubbing/buffing - stuff's magic!
I've found it's also great for prepping aluminum before welding -- it eats away the oxide layer, so you don't have to buff or wire-brush it off...
Edit: H380 and I cross-posted. Aluma-Brite is the same stuff (hydrofluoric acid). I think it's what Doc used.
Last edited by lazlo; 09-06-2011 at 03:22 PM.
"The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence."