Chris Bacon wrote:

Huge wrote:

Chris Bacon writes:
(polishing aluminium)

You can't.


Want to bet? A quick Google will show many interesting things...


The moment the metal is exposed to the air, it forms a coat of oxide.


Hm. Yet there's plenty of polished aluminium about. How *do* they
do it ?

The short amnswer is the oxide is so thin that it doesn't impede
reflection.

However its not scratchproof at all.