Voicing down hammers

[Alan Barnard]

Ahj, good question.

In order to "undo" a chemical hardening, you need to actual flush some of that stuff out by tilting your action so the hammers hang down than soaking them with the solvent until they drip, drip, drip.

Try not to die in the process ... as in: See you later, ventilator!

Alan Barnard
Salem, MO

----- Original message ----------------------------------------
From: "Phil Bondi" <phil at philbondi.com>
To: "Pianotech List" <pianotech at ptg.org>
Received: 11/2/2007 5:49:19 PM
Subject: Re: Voicing down hammers




>David Love wrote:
>> Straight acetone will actually make them harder.  In fact, you can use it to
>> bring up the tone just slightly on a set that's slightly soft.  I suppose it
>> causes the felt to shrink a bit.

>David,  I'm under the understanding that if a 
>hammer is treated with acetone and keytops, like 
>I'm sure this set was, then straight acetone 
>will help break down the plastic..is that not true?

>-Phil Bondi(Fl)