On a sunny day (Sun, 24 Sep 2006 21:27:16 -0700) it happened Frank Gilliland
wrote in
:

These clamps will not only provide a much
stronger mechanical connection, but will also, in conjunction with the
gold-plated flags, eliminate ANY possibility of corrosion in damp
(spilled coffee) environments.

I have a satellite dish motor (outside), opened it up, they have immersed
the PCB in wax (parrafine?) to make it corrosion proof.
It is just a very thin layer that covers all components.
Seems to work.
Even though I pricked the scope through it at some points to measure things.
:-)