CA glue

[Joe And Penny Goss]

Welcome to the list Annie.
In using CA on tuning or bridge pins no real strength is needed as the walls
of the bridge and pin block holes combined with support of tuning and bridge
pin themselves are enough to prevent failure of the glue to do what we need
it to do. We are really not using it as a glue to bond the two parts
together but rather as a bushing. In the case of the bridge pin we are not
wanting the bridge pin to even move just stay put.
And with the tuning pin, the glue when dry has the right friction feel to it
after the bond has been broken to give the right feel so that the piano may
be tuned without too much change in the way we wish to feel the pin turn.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message -----
From: "Annie Grieshop" <grieshop@n-connect.net>
To: <pianotech@ptg.org>
Sent: Tuesday, July 30, 2002 2:22 PM
Subject: RE: CA glue


> CA has little sheer strength -- that's a given -- which is why the clock
> fell off the wall and the handle came off the cup.  Where you smacking
folks
> with the ruler? <g>
>
> Another adhesives question:  what would the most likely adhesive have been
> on 1948 ivorine keytops (and, of course, what's the appropriate solvent)?
>
> Thanks!
>
> Annie
> in Iowa, new to the list
>
> >   I used a bottle of CA on several projects several years ago.  A
plastic
> > clock on the wall, a wooden ruler, a pencil holder cup, etc.
> > About a year
> > ago, the clock fell off the wall. A week later, the handle came
> > off the cup,
> > and about two or three weeks after that,  the ruler broke.
> >   I don't think CA is all that long term, but what I have seen in
> > blocks is
> > great.  I also think that the increased torque in a pinblock comes from
> > increasing the surface area between the pin and the wood more
> > than "swelling"
> > the wood.
> > Regards,
> > Ed Foote
>
>
>