CA update procedure

[Richard Strang]

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Using accelerator on thin CA can be a little dangerous. The CA sets up
almost instantaneous, get's extremely hot, and emits a toxic smoke. Don't
let accelerator get to any glue that may be on your fingers, and don't get
near the fumes. Be careful.
  -----Original Message-----
  From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf Of TysonPiano@aol.com
  Sent: Saturday, January 31, 2004 5:12 AM
  To: pianotech@ptg.org
  Subject: Re: CA update procedure


  Hi Joe Goss, Joe Garrett, and List,
     I'm George Tyson, Associate Member in Southern Oregon's
  Rogue Valley Chapter.  I'm curious about the results of using accelerator
when CA gluing tuning pins.  I've CA'd two spinets (not together) using
accelerator on one and no accelerator on the other.  Both pin blocks
tightened up nicely.  I haven't followed up yet on second tunings for either
of these pianos.
     Joe Garrett: When you CA'd the German Upright did you use accelerator?
     Has this List come to any sort of agreement regarding whether to use or
not to use accelerator?  I looks like Joe Goss says no to activator.  When
I've phoned the Dryburgh company I've been told yes to accelerator.

  George Tyson, Klamath Falls, OR

  In a message dated 1/26/04 8:13:13 AM Pacific Standard Time,
imatunr@srvinet.com writes:



    Hi Calin, and list, This is a update on ideas in  my use of CA glue in
    treating loose tuning pins.
    Great,
    If you use the CA on a grand be sure to take the action out and cover
the
    bed with news print ( paper ).
    Also the glue will run a lot so the use of a very fine needle ( I use my
    insulin micro fine needles ) will put the glue exactly where you want it
to
    be. Use a paper towel near where you are working as each time you move
the
    needle there may be some drips that go where you do not want them.
    Also a two pass approach is best just like in tuning. And in sections of
    perhaps 24 pins.
    You may want to mark the top of the pins with chalk for each section
until
    you get the idea of where you are going to go next. Treat a section at a
    time with the first and go back over with a second pass.
    Look for the welling up of the glue to let you know to stop but also as
a
    warning that the glue is going down a crack. In this case stop and go on
to
    the next pin letting the glue set up a little before adding more.`
    You should be able to start tuning the instrument when the last pin is
    treated as the moisture in the wood and friction of pressure will cause
the
    glue to set up a little. Full cure in a day or so without any activator.
    If you do an upright you may want the instrument to be on its back, but
I
    have treated a few pins with the needle with the instrument standing. It
is
    a pain in my back to do it this way but a few pins are not too bad.
    Joe Goss





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