[CAUT] S&S Key Bushings

[Jim Busby]

Ed,

I heard.... that Prolube's formula has Teflon in it, suspended in a polymer. Maybe Teflon powder is like a mega mega dose.

Jim


-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Ed Sutton
Sent: Thursday, October 30, 2008 6:06 PM
To: College and University Technicians
Subject: Re: [CAUT] S&S Key Bushings

Fred-

I'm curiou why you prefer Teflon on the cloth over ProLube on the cloth.

Ed S.

----- Original Message -----
From: "Fred Sturm" <fssturm at unm.edu>
To: "College and University Technicians" <caut at ptg.org>
Sent: Thursday, October 30, 2008 8:01 PM
Subject: Re: [CAUT] S&S Key Bushings


> On Oct 30, 2008, at 1:23 PM, Jim Busby wrote:
>
>> Thanks Fred,
>>
>> I forgot about the Teflon in the bushings. Do you do that very last?
>>
>> Jim
>
>
> When I put in new bushings, I apply the teflon before I glue in the
> felt. WIth a brand new piano, I put teflon in with a pipecleaner, then
> follow with heat. Reason? The pipecleaner "fuzzes up" the felt so it
> needs to be ironed down again. With the new piano, the bushing has
> never been ironed and probably needs some sizing, as well as lubing
> and ironing, so this is just a standard, assembly line process. The
> way I use the heated cauls, I don't find any affect on the teflon
> powder.
> At this point, I haven't done any steam sizing of bushings that
> weren't already tefloned for quite a while. But I think I would steam,
> then do a first, quick ironing, then apply teflon, then a final ironing.
> Chris says with the VS you don't need the additional lube. I guess
> I'll see, but my take is that what is described as being in the VS (1%
> silicone) is probably a lot less lubrication than a fairly think
> application of teflon powder on the felt, and a coating of McLube on
> the pin. (Why McLube on the pin? In my experience it sticks on metal
> much better than ProLube, and it seems to be the slipperiest substance
> I have come across. Granted it's killing brain cells, or the solvent
> part of it is. But who needs those? <G>).
>
> Regards,
> Fred Sturm
> University of New Mexico
> fssturm at unm.edu
>
>