[pianotech] Second dose of CA?

[Joe Goss]

For me; On a second application, the freshness of the ultra thin CA is critical.
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: Euphonious Thumpe 
  To: pianotech at ptg.org 
  Sent: Friday, August 24, 2012 9:24 AM
  Subject: Re: [pianotech] Second dose of CA?


  But if you are going to flip the piano over and CA from within, please do any tapping in of tuning pins first, as the CA may form a cap over the pins' bottoms which will cause the block to shatter if tapped later.

  Euphonious Thumpe

  From: erwinspiano <erwinspiano at aol.com>
  To: pianotech at ptg.org 
  Sent: Friday, August 24, 2012 11:04 AM
  Subject: Re: [pianotech] Second dose of CA?



  See more ca glue protcol. I said this thread would come up again if I mentioned it.
  Maybe someday I,ll compile all the archival footage on Ca glue techniques, tools and storys. It may be a best seller. I could do a world book tour, groupies and glu a holics stalking my every move! Yeah.....
  Nahhh. Come on now......I AM smiling.
  Have great no ca glue day
  Dale




  Sent from my Samsung Galaxy Tab 10.1 

  Dean May <deanmay at pianorebuilders.com> wrote:
  Yes, you can often get very good results with a second application. Years
  ago when CA was starting to be used on pins there were two extremes of
  application: one used 4 to 8 oz of glue, so much that glue ran everywhere.
  The other put barely any glue on at all. I find 1 to 2 oz is plenty for most
  pianos. Do a good soaking on the bushings as I believe that is where most of
  the holding power comes from. 

  You likely have a piano that had barely any CA put on it, so a second
  application may be just the ticket. It is cheap and easy to try, so why not?
  You certainly won't make anything worse. 

  If, after treating a few pins, it doesn't look like the CA is penetrating
  much, you might try drilling a tiny hole at the 6 o'clock position of the
  pin. Someone posted a protocol on this a few months ago for a second
  application scenario and said it worked well. You might check the archives,
  but as I recall you angle the drill so that it penetrates to the pinblock as
  it comes up to the pin. You are just creating another channel for the CA to
  travel further into the hole. Sounds like it should work great. 

  The flipping the piano upside down and applying from the bottom will also
  work. Be sure to remove lid and hinges from rim before rolling it over. 

  If it is only a few pins giving you grief, then remove the pin, squirt 6-8
  drops of CA around the hole, re-insert pin. I have never had that not work.

  Dean
  Dean W May                (812) 235-5272 voice and text 
  PianoRebuilders.com    (888) DEAN-MAY        
  Terre Haute IN 47802

  -----Original Message-----
  From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
  Of Paul Mulik
  Sent: Friday, August 24, 2012 8:34 AM
  To: pianotech at ptg.org
  Subject: [pianotech] Second dose of CA?

  A school that I tune for has a mid-1970s Kawai grand that's on its last
  legs. The tuning pins are too loose to hold a tuning, but somebody at some
  point in the past has already used CA glue on them. Is there any point in
  another CA application, or is it a hopeless case at this point?  I've
  already told them there's not a lot I can do for it at this point, but like
  schools everywhere there's not enough money to spend on extensive repairs or
  a new piano. 

  Paul Mulik
  Joplin, MO
  Sent from my U.S. Cellular BlackBerryR smartphone

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