"Guy King" wrote in message
...
The message . com
from "Aidan" contains these words:

I think caustic soda would just dissolve the aluminium.

It does if you leave it in too long, but I've done it - oddly, from a
suggestion in a very old electronics mag, and a pint of warm water with
a tablespoon full of caustic soda in it does produce a passable finish.

Anodising it is not - nor is it a patch on proper anodising, but it's OK
for some uses.

Such as?

Not challenging, just interested!

Mary

--
Skipweasel
Pay no attention to that man behind the curtain.