[CAUT] Tuning Pin Questions, self adhesive nameboard felt

[Porritt, David]

I can't really say that it was "nameboard felt" but it was felt with
self stick something attached.  All of the bushings came off cleanly
with no felt or glue left on the button and the felt that came off had a
definite layer or .....I don't know how to describe it but it was
remarkably like any self stick product.  When I do the other M that we
got at the same time I'll pay more attention to it.  Of course I'm sure
it came out of the Kluge plant.

 

dave

 

David M. Porritt, RPT

dporritt at smu.edu

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Fred Sturm
Sent: Wednesday, July 09, 2008 11:54 AM
To: College and University Technicians
Subject: Re: [CAUT] Tuning Pin Questions, self adhesive nameboard felt

 

Hi Dave,

            This sounds very strange. I have a 3-4 year old M at UNM,
and it has normal key bushings. I think that in manufacture of key
buttons, they tend to use a cloth with heat sensitive glue pre-applied,
and then heated cauls activate the glue. If there was a malfunction
where the cauls weren't hot enough, or not given enough time, maybe
you'd get something similar to what you describe, a cloth with a fairly
thick glue "backing" sitting in the key button mortise. Except that the
material would be felted cloth, not the nameboard stuff, which isn't
woven and isn't very dense. 

            Could this be the case? I simply can't imagine any piano (or
key button) manufacturer using self adhesive nameboard felt in this
application. Well, I guess I can imagine it, but it seems pretty
unlikely.

Regards,

Fred Sturm

University of New Mexico

fssturm at unm.edu

 

 

 

On Jul 9, 2008, at 4:56 AM, Porritt, David wrote:





These were the original factory bushings.  Same self-stick felt on all
buttons though the guide rail bushings were "normal".  This piano is in
a practice room for piano majors.  Four years is not unusual to need
bushings in that case.  Those pianos are played long and hard -
especially hard!  We have another M purchased at the same time but I
haven't rebushed that one yet.  I'm sure I will soon.

 

dp

 

David M. Porritt, RPT

dporritt at smu.edu

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Kendall Ross Bean
Sent: Tuesday, July 08, 2008 7:13 PM
To: caut at ptg.org
Subject: [CAUT] Tuning Pin Questions, self adhesive nameboard felt

 

Dave~

 

A 4 year old Steinway M? Self stick nameboard felt? Were those the
original factory bushing in the keybuttons?

 

Or had it been previously rebushed.....? 

 

Or were there two kinds of felt on the keybutton?

 

(Its just hard to believe keys would have been rebushed within the first
four years...

 

(Either confused, or incredulous, or perhaps, both~)

 

~Kendall 

 

PianoFinders

www.pianofinders.com <http://www.pianofinders.com/> 

e-mail: kenbean at pianofinders.com

phone: (925) 676-3355

 

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Kendall:



You asked how many still use self stick nameboard felt.  This summer I
rebushed the front and balance rail bushings on a 4-year old Steinway M
and while the guide pin bushings were traditional, the felt on the key
buttons was clearly self-stick felt!  It was the exact same stuff as the
nameboard felt.  Fortunately it came off well - the sticky stuff stuck
to the felt not the button - but I had certainly never seen that before!



dave



David M. Porritt, RPT

dporritt at smu.edu <https://www.moypiano.com/resources/#archives> 

 

 

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