[pianotech] Removing Glue

[paul bruesch]

I've said it hundreds of times before, including at least one time here...
<Engineers don't work on cars>  Engineering and manufacturing are one-way
processes. There is no concern for anything that may or not happen down the
road.
Paul Bruesch
Stillwater, MN

On Sun, Dec 14, 2008 at 1:16 PM, Ron Nossaman <rnossaman at cox.net> wrote:

> Mike Morvan wrote:
>
>     We have had piano and organ keyboards in our shop this year less than a
>> decade old made in Germany, England, China and the United States all with
>> bushing failure and nightmare scenarios of removing PVA, EVA, hot melt and
>> yes, double sided tape which are used at the production level for bushing
>> installation.
>>    Off my soap box now. Please use hide glue, pretty please. Mike
>>  Blackstone Valley piano
>> Michael A. Morvan
>>
>
> I've said it before. There's no apparent evidence that the old
> manufacturers gave a flying hoot if their glue was reversible. The notion of
> someone rebuilding an old piano that would cost them sale of a new one would
> likely have made them less than happy. They used what they had, were
> familiar with, and knew to work. That was hot hide glue. Today's
> manufacturers are for the most part equally uninterested in what some
> rebuilder finds when he tries to strip bushings, felt, or anything else. The
> difference is that they have more choices for gluing the stuff on, and have
> the option of choosing glues and materials that will more or less guarantee
> that these pianos won't be rebuilt - ever.
>
> So while we have the luxury of it being possible to steam or soak off
> existing glues with minimal damage, I agree, please use hot hide glue for
> felt work on wood. The other day, I stripped a set of key bushings that
> appeared to have not been the originals. They steamed out easily and
> cleanly, without taking wood with them, as they will again when someone
> replaces the bushings I installed in their place.
>
> Go hide!
> Ron N
>
>
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