>DO NOT use silicone rubber anywhere around copper - it produces  acetic
>acid fumes which corrodes copper even if they are not touching.  Lots of
>people make this mistake.

Isn't this true only of the stuff you buy at the local hardware store? It is
possible to purchase non-corrosive varieties of RTV intended for electronic
purposes.

Dow-Corning 748, for example, is a non-corrosive RTV type sealant. GE makes
similar products.

Sometimes these are sold as "aviation" or "aerospace" sealants, in addition
to an "electronic sealant" name.

Jack

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