[GreenKeys] Teletype Oil (Ad Nauseum)

[Sheldon Daitch]

We use considerable amounts of silicone grease on rubber O-rings for 
glass tube
fittings on the vapor phase cooling systems in our transmitters, as well 
as the
O-rings in transmission line connectors and wave guide connectors and never
any problems that we are aware of, where the silicone grease attacks the 
rubber.

I'd say that every Andrew coaxial connector with rubber O-rings and gaskets
contains a small tube or two of silicone grease.

73
Sheldon
WA4MZZ

> I have to disagree about silicone not attacking rubber. Take a look at the
> O-ring manufacturer's sites and you will see that several synthetic
> "rubber" compounds are attacked by "silicones". The other concern about
> using silicone around electronics is that one of its properties is a very
> high dielectric strength. Given its propensity to creep, that could be a
> problem on the various contacts.
>
>