[GreenKeys] Yet another magic lubricant

[Steve Schlink]

Lar,

At 12:56 PM 6/24/2011 -0400 Larry Tighe  wrote:
>For some reason, I thought the gears were nylon !  Not so?????
>
>And, if plastic, what does the "wrong" grease do to them???

         Basically, breaks the polymer chains, which effectively destroys 
the plastic. Similar to what UV does to many plastics.

         Firstly, "plastic" is such a broad term that generalization is 
problematic. All plastics aren't rigid, think O-rings.
         The plasticizers used to make them flexible adds a whole 'nother 
problem with grease compatibility.
         Some plastics are actually rather porous, like a sponge and can 
absorb some lubricating fluids causing swelling.
         Contrary to popular belief, silicones (properly polysiloxanes) 
will react with and degrade some plastics.

Steve