[pianotech] Profelt for loose centres?

[Paul T Williams]

I tried it too on centers.  I found the same result as Jim. ...some got 
worse!  Haven't tried it on hammer voicing.  I suppose it works about the 
same as the Downey Softener trick.  Too much...and the hammers turn into 
nerf-balls!! (as one student called it on a practice room grand that I was 
"practicing" on)

PW




Jim Busby <jim_busby at byu.edu> 
Sent by: pianotech-bounces at ptg.org
05/27/2009 10:44 AM
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Re: [pianotech] Profelt for loose centres?






We've now tried it dozens of times for centers and we DON'T recommend it 
for centers. Not only does it NOT tighten, in some cases it made them 
looser. Surprizingly, we use it to voice hammers. A small drop in the 
groove does it. Experiment with it and you'll see. Works great on key 
bushings too.

Here's a trick to get a "small" drop; using a small needled bottle, point 
the needle down and let 5 or so "sacrificial" drops leak out on a rag, 
etc. Now, keep the bottle pointing downward and you'll see that the fluid 
is held up by the vacuum created. A very tiny drop will now flow, until 
after a while the suction is too great and you need to tip and start 
again, or just squeeeze out the size drop you need. It's very easy, fast 
really.

Jim Busby RPT

________________________________________
From: pianotech-bounces at ptg.org [pianotech-bounces at ptg.org] On Behalf Of 
david at piano.plus.com [david at piano.plus.com]
Sent: Wednesday, May 27, 2009 6:26 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Profelt for loose centres?

Folks I just found out that my question about VS Profelt for loose centres
was already post on the list by Paul Williams in November 2008.  I don't
see any answer though.

I see also that my other notion some weeks ago, about key cauls possibly
not being necessary for using VS Profelt on key bushings, was also
previously addressed:

>Subject: Re: [CAUT] VS Profelt - How much?

>one or two drops on the nesting footprint of the pin on each felt.
>Chris S
>----- Original Message -----
>From: Jim Busby
>To: College and University Technicians
>Sent: Friday, October 31, 2008 12:20 PM
>Subject: [CAUT] VS Profelt - How much?

>List,

>I got my bottle of VS Profelt today. How much do you put on front rail
>bushings? I have cauls and juice ready!

>Jim Busby BYU
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