Pinblock Epoxy Help

[Elian Degen]

Avery,  I constantly find myself with this kind of jobs, and I am doing it
in the same way as Bonifield/Poulson, but I added one more ingredient, and
it proved excellent over the years, Before doing the job, I use a
dehumidifier to dry the piano (the pinblock) thoroughly, That will give you
an extra grip when it comes back to it´s normal humidity, and assures you
that no matter the weather conditions, it will keep tight.


Elian Degen

Piano Tuner and Tech Caracas, Venezuela
-----Original Message-----
De: Bonifield/Poulson <bonifarm@oro.net>
Para: pianotech@ptg.org <pianotech@ptg.org>
Fecha: Domingo 26 de Octubre de 1997 04:00 PM
Asunto: Re: Pinblock Epoxy Help


>Avery:  A couple of things come to mind.  I did a similiar repair a
>couple of years ago, and the pins are still holding fine.  As per advice
>from Bill Spurlock, here is what I did.
> 1.  I used regular epoxy, not the 5 minute stuff.
> 2.  I mixed in a lot of maple sawdust to give the epoxy some body.
> 3.  I filled the holes with the mix, working it down with a dowel to be
>sure that the hole was completely filled.  I taped the bottom so that no
>glue would leak out.
> 4.  I let the epoxy set up over night.  I then centerpunched to hole,
>drilled down with an undersized drill bit, and then followed that with
>the appropriate sized drill bit.
> 5.  I then replaced the strings and pins.  The torque and feel was like
>new, and has held well ever since.
> I think that adding the wood shavings or sawdust and the use of regular
>epoxy is crucial to this type of repair.  Patrick Poulson, RPT
>