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
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