False Beats in high treble after stringing

Greg Newell gnewell@ameritech.net
Tue, 10 Jun 2003 21:36:23 -0400


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O.K. this is something I've been confused about for some time now. I=20
thought that the chemical reaction between the two components of epoxy were=
=20
what caused heat and therefore the curing or hardening process. If you heat=
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with a hair drier or heat gun how does the epoxy thin and not harden? I=20
believe you, I just don't know how this is possible. Is there a different=20
way to mix the epoxy or a different product to buy?

Greg





At 04:34 PM 6/10/2003, you wrote:

>Did you epoxy all of them, or just those that seemed to be loose? When you=
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>epoxy or CA bridge pins like this, you need to do them all, and=20
>thoroughly. You need enough epoxy to soak into the bridge cap and fill the=
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>gap between pin and cap. The bottom of the pin isn't terribly important,=20
>just the part where the pin enters the cap - where the string is.=20
>Otherwise, the "still tight" pins will prove to be loose enough to produce=
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>false beats with the nice new strings. The "best results for the work" way=
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>to approach this is to pull all the pins, clean up the notches with a=20
>chisel, and epoxy in new pins. The "least work for the results" method for=
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>old uprights that need more work than they are going to ever get is to=20
>apply epoxy around each original bridge pin and heat it with a hair drier=
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>or heat gun so the epoxy thins and wicks down into the hole around the pin=
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>- or use CA, also with the original pins in place.
>Ron N
>
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives
>

Greg Newell
Greg's piano Fort=E9
mailto:gnewell@ameritech.net=20

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