In message , JB
writes

"Gary Smith" wrote in message
...
Hi, whats the best way to remove white corrosion from aluminium? I have
some
aluminium and it has bolt holes in it with white corrosion in the holes,
is
there a spray or liquid to soak it in then maybe use steel wool in the
holes?

Thanks

Gary
VK3LCD

Drill the holes out larger. You can use a mild acid like in Aluminum jelly
but the corrosion gets into the metal and makes it extremely brittle. The
holes would crack out under stress.

In fresh aluminum, use NoAlox or some other type of antenna grease. I find
a little extra Vaseline in the mix helps. The idea is not to mess things
up, but just rub enough in to seal the pores of the metal.

I think I've read that you should avoid using steel wool. Tiny pieces of
the steel become embedded in the aluminium. The 'dissimilar metal'
effect soon causes worse corrosion. It is best to use a non-metallic
scoring pad.
--
Ian