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Re: [OM] Conductive grease (was Cleaning film speed dial?)

Subject: Re: [OM] Conductive grease (was Cleaning film speed dial?)
From: clintonr@xxxxxxxxxxxxxxxx
Date: Tue, 22 Apr 2003 19:18:27 -0500
"Dielectric grease" it is then!  Or "di-di" grease, for short (a Japanese pun --
"di-di", meaning "orange", which is the color of the stuff they gave us...).

Brian Swale wrote:

> >Titoy wrote
> >
> > Clint,
> >
> > What is "conductive grease" called in the shops? Just wondering if I might
> > find it here where I live? Can you tell me the brand name etc? Seems like my
> > beater OM  2s has the same problem.
> > Regards
> > Titoy
>
> Dielectric grease and conductive grease are both very difficult - nearly
> impossible - to find in New Zealand, but I have done quite a lot of homework
> on them preparatory to getting some.
>
> They are NOT the same. In fact, they work in OPPOSITE ways
>
> Dielectric grease as I have come to understand it is not a lubricating grease,
> but protects surfaces that would normally conduct, from oxidation and other
> forms of corrosion and fouling. It (they - there are a myriad of forms of it)
> seems to be an insulator. So sliding contact surfaces are protected from
> fouling that would prevent them from conducting.
>
> Conductive grease seems to me to be a dangerous compound to have on a
> rotating switch - slider.
>
> It is a kind of grease that is laced (filled) with metal (or other conductive)
> particles, so that the grease wherever it is, is a conducting surface. As I
> understand it, if you coat a surface with conductive grease, the whole of that
> surface will conduct electricity, even if before it would not.
>
> And that is NOT what you want with a rotating switch.
>
> Comment?
>
> Brian
>
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