PVC-E & Sharps

[Dave Nereson]

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  ----- Original Message -----=20
  From: Alan=20
  To: dave@davispiano.com ; 'Pianotech'=20
  Sent: Sunday, June 08, 2003 8:47 PM
  Subject: RE: PVC-E & Sharps


  This was a post I put up about my experience with PVC-E and =
sharps--with
  a little bit of CA on the ends. They seem to have held real well, even
  the two I dropped!

  https://www.moypiano.com/ptg/pianotech.php/2003-May/134749.html

  Alan R. Barnard
  Salem, MO

  -----Original Message-----
  From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
  Behalf Of Dave Davis
  Sent: Sunday, June 08, 2003 9:06 PM
  To: pianotech@ptg.org
  Subject: PVC-E & Sharps

  Hi All,

  I've been researching the Archives on PVC-E glue and
  found lots of entries with mostly positive results as
  an adhesive for keytops (naturals).

  Does PVC-E work equally as well on plastic sharps?  I
  found only one reference in the archives.

  Thanks,
  Dave Davis
  Renton, WA

       Was the old "pyralin glue" that Schaff or American used to sell =
for keytops the same as PVC-E?  It worked pretty well, as I remember, =
but didn't have a long shelf life -- hardened into one rubbery blob.  =
Smelled like Duco Cement.  Anyway, it's not in the catalog now, and =
PVC-E seems to be what they recommend for plastic (or ivory?) keytops.
      And what is "pyralin" anyway -- just a type of plastic?  I know =
from (bad) experience, that when gluing keytops with the wafers and =
brass plates, then heating them [I was taught to put a little blob of =
Sterno on the plate, then light it.  It burns for a minute or so, then =
goes out, and the ivory and wafer bonds quite well to the key],  if you =
accidentally spill Sterno juice on the key front or heat the key front =
too hot with a heat gun, it will flame up and burn faster than a =
marshmallow over a campfire!   And I'm wondering if "pyralin" has =
anything to do with "pyro" or if heat or fire is used in its =
manufacture, or what? =20
      I always thought (old) plastic keytops, and especially key fronts, =
were celluloid, and that's why they burn so easily, like old movie film. =
 =20
      --David Nereson, RPT=20

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