naphtha + mineral oil / silicon + naphtha

[Joe & Penny Goss]

AHA sillycone potatoe its da E.
Way past bed time for me nite
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message -----
From: <Kdivad@AOL.COM>
To: <pianotech@ptg.org>
Sent: Sunday, September 09, 2001 8:17 PM
Subject: Re: naphtha + mineral oil / silicon + naphtha


> In a message dated 9/9/01 8:49:46 PM Central Daylight Time,
> Ritchiepiano@AOL.COM writes:
>
> << <
>   7. The silicon as used by both Baldwin and Wurlitzer is one of the
safest
>  products in the technicians arsenal of chemicals. The MSDS sheet
indicates
> no
>  harmful effects from swallowing, skin absorption,  inhalation, and skin
>   contact. Even eye contact is listed as "may cause minor irritation and
>  swelling of the conjunctivae". It will not aggravate existing medical
>  conditions. The flash point is 390 degrees F so it is safe in the trunk
of a
>   car. The vapor density is listed as HEAVIER THAN AIR. (brings into
question
>  the "traveling uphill" suspicians).
>   ------------------------------ >>
>  List,
>  Now, as for the Silicon.  You are confusing the element Silicon with
>  silicone or silicone rubber. I think this topic has been breached before.
>
>  Webster's says:
>
>  silicon: a tetravalent nonmetallic element that occurs combined as the
most
>  abundant element next to oxygen in the earth's crust and is used
especially
>  in alloys.
>
>  silicone:  any of various polymeric organic silicon compounds obtained as
>  oils, greases, or plastics and used esp. for water-resistant and heat
>  resistant lubricants, varnishes, binders, and electric insulators
>
>  silicone rubber:  rubber made from silicone elastomers and noted for its
>  retention of flexibility, resilience, and tensile strength over a wide
>  termperature range.
>
>  What we are talking about is silicone.  Heavier than
>  air isn't really the question.  Frequently (almost always) oils, greases,
>  plastics and rubbers are not pure compounds, but mixtures. They can
>  contain other components such as antioxidants, plasticizers, etc.
>  which do, in fact, volatilize out of the silicone and can deposit on
>  something else. Volatile compounds can come out of, say,
>  a car dashboard and coalesce onto the car window,
>  ( it's that new car smell) or out of a CD jewel case onto a CD.
>  If you really think that something came out of the silicone and
>  deposited on something else, IT COULD HAVE.  The problem is
>  that you don't really know what is in the silicone (and by the way,
Baldwin
>  probably doesn't either).  If you have been sensitized to something, you
can
>  react to it and they wouldn't necessarily have to put it on the MSDS.
>
>  WD-40, according to the company and a 25 year rep. says it has never
>  contained "silicone" . They did produce a product under a different name
>  that did. The sales representative however did not recommend WD-40
>  for use on wooden parts and I wouldn't either. FWIW
>
>  Mark Ritchie RPT
>
>  >>
> AAAHHH, This makes sense to me!  The voice of reason?  I am not totaly
sure
> but it sure seems reasonable to me.  By the way, it seems odd to me that
WD40
> when used to lubricate metal parts only lasts a very short time i.e. a
> squeeky door hinge that in a very short time becomes squeeky again, but
seems
> to expand and spread when used in a piano action.  The only thing I have
ever
> found WD40 useful for is chasing moisture out of a distributor cap.
> David Koelzer
>                  dfw