[ARC5] Turbine Oil

[Fuqua, Bill L]

  Most of the bad rap that silicone oil gets comes from body shops since it is not compatible with
organic solvents one spot on a car body causes fish eye.
  Silicone based grease are used often in bearings that are exposed to 
wide temerature extremes, I bought a tube of it at a local bearing supplier for my rotator.Even IBM used  silicone oil, well kept secret for many years,
to prevent fretting oxidation in IC sockets. It was quite some time later that the first articles about fretting oxidation
were released. They would put a tiny amount on each IC pin before inserting it into the socket. 
  My associate engineer years ago used to refer to it a crunch. The chip would work its way out of the socket
a bit and when you pressed down on it made a crunching noise. After the crunch the board would function correctly
again. 

73
Bill wa4lav
  
________________________________________
From: J. Forster [jfor at quikus.com]
Sent: Thursday, January 26, 2012 10:29 PM
To: Fuqua, Bill L
Cc: arc5 at mailman.qth.net
Subject: Re: [ARC5] Turbine Oil

Diff pump oil's claim to fame is a very, very low vapor pressure. Nothing
more.

And silicone oils are damn near impossible to clean off.

-John

=============

>   Not all synthetic oils are non-petroleum based.
> The very best oils are silicone syntetic oils which do not react to
> anything,
> and are not affected by temperature. The purest forms, which cost often
> over $100 per quart is
> diffusion pump oil. But there are some used in the automotive industry
> that are much cheaper. Same
> for silicone grease. One problem with all oils is that if there is any
> dust or smoke particles they can
> combine with it and gummy and messy. You have to keep the dust and smoke
> away from the gears
> and bearings.
>   73
> Bill wa4lav
>
>  ________________________________________
> From: arc5-bounces at mailman.qth.net [arc5-bounces at mailman.qth.net] On
> Behalf Of gordon white [gewhite at crosslink.net]
> Sent: Thursday, January 26, 2012 7:59 PM
> To: Richard Knoppow
> Cc: arc5 at mailman.qth.net; Robert Eleazer
> Subject: Re: [ARC5] Turbine Oil
>
>          Hoppes gun oil has a different odor than most oils. A little
> like banana oil. I don't have my bottle of Hoppes where I can find it,
> but isn't it supposed to be a solvent for powder residue?
>
>   - Gordon White
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