CA ing bridge pins

[David Love]

Is CA glue actually corrosive?  I've not heard that, or experienced it. 
I've CA'd pins on many pianos and have never taken the strings off first. 
It seems like a lot of extra work if there isn't a down side to doing this
with the strings on.  I usually use a fine hypo oiler, apply thin CA to the
non string side of the bridge pin.  It seems to disappear very quickly into
the bridge and doesn't seem to collect around the pin at all.  After a
couple of applications and it appears no more is soaking in, I wick up the
excess with a bit of paper towel or blotter paper.  

David Love
davidlovepianos@earthlink.net


> [Original Message]
> From: Horace Greeley <hgreeley@stanford.edu>
> To: College and University Technicians <caut@ptg.org>
> Date: 10/30/2003 11:01:38 PM
> Subject: RE: CA ing bridge pins
>
>
>
> At 12:17 AM 10/31/2003 -0600, Ron wrote:
>
>
> >No heat. Thin CA goes plenty deep all by itself. Deeper than you need,
in 
> >fact. The critical area of pin support is right at the surface of the
cap, 
> >and the CA tends to disappear into the depths of the hole around the
pin. 
> >Repeat applications until the stuff stays around the pin at the surface, 
> >and you'll get the best results.
> >
> >Ron N
>
> What Ron said.
>
> I prefer to do this with the strings out of the way.
>
> FWIW, you _can_ destring the entire treble at one time, if need be.  I 
> usually just do a larger section (between the struts) at a time.
>
> Part of the reason to do this is musical, wire ages.  Part of it is that
CA 
> glues can be pretty corrosive.  If the string isn't there, it isn't going 
> to be affected.
>
> Horace. 
>
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