Re: Sealing Valves
By Howard Wyman
In regard to the following:
> Date: Fri, 20 Oct 1995 14:56:09 -0600 (MDT)
> From: Stan Rhine <srhine@unm.edu>
> To: automatic music <automatic-music@foxtail.com>
>
> Subject: Sealing valves
>
> Having recently subscribed, I have been following the rebuilding
> questions with some interest. I would be interested to hear what various
> folks have used to seal pouch leather. Art Reblitz seems to be stuck on
> dilute rubber cement. Craig Brougher seconds, though recommending a
> different brand than Art. Craig also suggests a silicone grease & the
> Player Piano Co's catalog goes for mink oil.
>
> What sort of experiential wisdom lurks out there in e-mail land? What
> really works? How does it age? Should one attempt to reseal old pouches?
> Has the promise of "better living through chemistry" offered no
> improvement over rubber cement in the last 50 years?
>
> Stan Rhine
> Albuquerque, New Mexico (a pneumatic wilderness)
I have restored two Gulbransen player pianos which originally had pouches made of rubberized pneumatic cloth and therefore in their original state were no doubt designed to operate best with very airtight pouches. I sealed the pouches with mink oil and in testing them before and after sealing, the mink oil seemed to make them quite airtight. As far as the durability, I did the first one seven years ago and it is still performing beautifully. I realize that is not a long term test. On the other hand I don't believe that sealing with rubber cement is permanent either. So, I guess it is a matter of the individual technicians preference, but in the meantime I will stick with the mink oil.
Howard Wyman
hwyman@digital.net |
(Message sent Sun 22 Oct 1995, 21:38:32 GMT, from time zone GMT-0400.) |
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