I am guilty of using "silicon grease" as shorthand for
polydimethylsiloxane thickened with amorphous fumed silica.

I use it to lubricate both with silicon and buna rubber o-rings,
seals, and the like. Makes insertion so much easier and it lasts
through heat and prssure :)

Alistair

On 11-Aug-07, at 7:07 AM, Michael Elliott wrote:

Alistair Bell typed:
> wd 40 does not contain silicon. silicon grease is ok , in fact
> approved and recommended to use on rubber. Well that's what they tell
> me in my biz

That would be "silicone," which is viscous and slippery -- silicone
lubricants or rubberlike appliances or as used in fake boobies. What
your business has to do with grease and rubber I don't want to know.
Brittle, crystalline "silicon," which chips easily, is another thing
altogether and if used on rubber probably wouldn't do the rubber any
good.
--
Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR