.<SNIP>
> Silicone on _silicone_ is, AIUI, a bad idea because the grease
> _impregnates_ the solid material. It's why, for example, Nikon produces
> a special Nikonos grease for the O rings of their U/W cameras, some of
> which have silicone based O rings (those stupid, highly statically
> electrically chargeable, red bloody things mostly) and they _insist_
> that only their grease is to be used.
I can also personally attest that Salt Away will dissolve Nikonos O-ring
grease.  Flooded an RS that way.

CH