[CAUT] Which S&S replacement action parts?

[Chris Solliday]

Fred, I have problems when reaming (hard to imagine that some need it with
free and firm and teflon) this cloth. Do you? I haven't found a really good
burnishing technique or sizing solution. Have you?
Chris Solliday rpt
----- Original Message ----- 
From: "Fred Sturm" <fssturm at unm.edu>
To: "College and University Technicians" <caut at ptg.org>
Sent: Thursday, June 26, 2008 10:05 AM
Subject: Re: [CAUT] Which S&S replacement action parts?


> On Jun 25, 2008, at 7:47 PM, Barbara Richmond wrote:
>
> > I haven't worked on many newer Steinways with the low friction but
> > firm
> > cloth.  Actually, I have strips of it and I haven't figured out yet
> > how
> > anyone has determined that it is so firm.
>
> Hi Barbara,
> The felt itself isn't particularly firm. In fact, it might be on the
> spongy side. After the parts are pinned, the centers are dipped in a
> solution of a teflon-like substance. It hardens in the felt. Around
> the edges of the dipping baths, there is white substance where the
> solvent has evaporated and left the solids. It feels much like what
> you get if you let McLube evaporate.
> The firmness of the bushings comes from impregnation of the felt with
> the lubricating substance.
> Regards,
> Fred Sturm
> University of New Mexico
> fssturm at unm.edu
>
>