On Fri, 3 Oct 2003, Joe wrote:
You might try "coil cleaner". It's used
to clean air conditioning
evaporator coils and readily removes built up dust and dirt. You just
spray it on, let it sit for a bit then wash it off with water. It's used
on bare metal in AC units so that SHOULDN'T be a problem but you might
want to try it on some scrap first. The guys in the business call it
"acid" but I think it's actually alkaline.
The stuff I used to have around was an acid. It was bad enough that the
fumes from a leaking bottle etched/frosted the windows in the service
van...
-Toth