A challenge for CA glue.

Marcel Carey mcpiano@microtec.net
Fri, 20 Mar 1998 00:22:32 -0500


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Dear Bill S,

I think you should use the thin CA glue. Depending on the condition, I would
suggest you get 2 x 2ounces bottle. Usually one is enough, but I find that you
might want to repeat the procedure until you get the desired result. It has worked
for me. Just do one pass, test the pins after 5 or so minutes, if not tight
enough, do another pass. I've done over 4 passes on a certain piano but the result
was worth it. I prefer the feeling of CA doped blocks compared to the garfield
ones.

Hope this helps,

Marcel Carey, RPT

BSimon1234 wrote:

> THE PIANO:
> A donated no name baby grand, years ago extremely heavily doped with
> Garfield's ( pools of brown sticky stuff that has hardened), - no pin
> bushings, most pins would need vast improvement to come up to zero pin torque.
> ( You know, - they jump 5 notes flat when you release the tuning hammer)
>
> THE SITUATION:
> Little old ladies club, their big yearly scholarship fundraising event is in 5
> days with a "singing group" coming in do a program, "PLEASE - PLEASE, do what
> you can." My work basically pro-bono. (I occasionally do some.)
>
> THE PLAN:
> A great piano to experiment with! What's to lose?  I intend to try putting CA
> glue (thin- medium- thick ?) into the pin wells where the bushings should have
> been, letting it set up and then tuning.  The piano was previously  tapped
> about as far as it can go. I will remove the action and shield the key bed,
> etc.  It would be very difficult to turn this piano over to treat the bottom
> of the pinblock due to its location and my feeble back.
>
> REQUESTING YOUR HELP:
> I wish I knew this was coming up, for I would try water thin epoxy, but no
> time to get that now. I would like to know how thick the CA should be, how
> many grams or ounces might be needed, waiting times,  - ANYTHING that would
> help.  Also, IS THIS LIKELY TO WORK? - I will report to the list, because if
> CA works in this piano it should work anywhere. Is the CA likely to work as
> well as an epoxy treatment? For this much CA glue the fumes will be awesome.
> Anything to do there besides ventilation? Should I drop a drop of water into
> the holes after the CA glue? - What about accelerators?
>
> Please feel free to e-mail me directly, but I will be anxiously watching the
> list. If it doesn't work right away I would still have  time to burn down the
> building and save the ladies from grievous embarrassment.
>
> Thanks,
> Bill Simon
> Phoenix



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