In article . com, Andy
Evans wrote:
Like may people I use aluminium in equipment cases - in my case for top
plates for valve preamps and amps. I use 4mm alu, which Fays Metals in
Acton London supply and cut to size. It's not great looking in its raw
state, but all my DIY attempts with solvent cleaners, wet and dry paper
etc are even worse. How do they get that 'brushed aluminium' effect?

It's a long time since I've done anything like this, but I recall
achieving a reasonable "brushed" effect using wire wool, or a piece of a
Brillo pad, in an electric drill. for a circular effect, stuff a wodge of
it directly into the chuck and apply it end-on, and for the straight
effect, wrap the wire wool round something cylindrical like a thick drill
and apply it side-on. As with any artistic effect, the quality will depend
very much on the skill with which you apply it, so it may improve with
practice, and if it makes sparks, you're running the drill too fast. You
may feel safer applying the Brillo pad by hand.

Rod.