my own Soundboard

[Farrell]

> I'm curious, however, why you would seem to think 'glass-like hardness'
> would be advantageous for either soundboard assembly or installation.

Make clear note here Del, I claim no authoritative knowledge here, but this
is my logic: The traditional adhesive for soundboard installation is hot
hide glue. Hot hide glue dries to a glass-like hardness (at least harder
than Titebond which retains some noticeable flexability). A hard-drying glue
might be preferable to a glue which dries somewhat flexible because the
flexable stuff might have some capacity to dampen soundboard vibrations.
That, in a nutshell, is the logic.

Now, it may well be the case that after adequate application of pressure to
the Titebond board/rim joint, there is not enough glue to dampen anything -
regardless of what kind of glue you use. That may well be true. And in all
honesty, if you say it is so, I believe you. If you use Titebond to install
a board, I have no doubt it is as good as anything else. I have yet to buy
any of the Bolduc glue. I you use Titebond for your boards, my best guess is
that I will also when I do my first board in a couple months.

What are your thoughts on the flexible glue line possibility of soundboard
dampening thing? Not realistic? Thanks for your input Del.

Terry Farrell

----- Original Message -----
From: "Delwin D Fandrich" <pianobuilders@olynet.com>
To: <pianotech@ptg.org>
Sent: Saturday, January 12, 2002 12:12 PM
Subject: Re: my own Soundboard
>
> ----- Original Message -----
> From: "Farrell" <mfarrel2@tampabay.rr.com>
> To: <pianotech@ptg.org>
> Sent: January 11, 2002 5:15 PM
> Subject: Re: my own Soundboard
>
>
> > Hi Greg. One particular thing I noted from the Bolduc soundboard
> > installation seminar was his plug for Bolduc glue. It is a white liquid
> glue
> > that appears much like Titebond. It has a long working life like
Titebond,
> > but dries to a glass-like hardness like hide glue (very much unlike
> Titebond
> > and other "white" glues). It seemed to me to be the best of both worlds:
> > hard glass-like bond, but long working time for the one-person shop to
> > install a board. I'm sure it is available from Pianotek.
> >
> > Terry Farrell
> >
>
> Terry, Greg, et al,
>
> Titebond II works quite well for soundboard assembly. It has a good
working
> life, it is nearly waterproof and dries/cures to a rigid enough bond that
it
> can be used for most bent-laminate purposes.
>
> I'm curious, however, why you would seem to think 'glass-like hardness'
> would be advantageous for either soundboard assembly or installation.
> Neither the spruce used to make the soundboard panel nor the maple (or
> Select Hardwood) rims the soundboard is glued to is glass-like hard. Nor
are
> they particularly rigid.
>
> If you'd like to get more sophisticated in your selection of
adhesives--and
> if you're willing to purchase them in 1-gallon and 5-gallon
quantities--you
> can get MPA II from CustomPak. (See www.custompak.com. Their site lists
> mostly 1-gallon quantities, call them, 800.454.4583, for 5-gallon prices
and
> more information.) This is simply a commercial version of Titebond II
(made
> by Borden [sp?]). It is white and cures to a milky, translucent color.
>
> You can also purchase (from CustomPak) MPAs in variety of other
> formulations; high viscosity, low viscosity, heat setting, etc.
>
> Del
>
>