PVC-E & Sharps

[Mike Kurta]

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    I suspect Sobo glue sold in craft and fabric stores is PVC-E =
adhesive.  It looks the same, smells the same, has the same =
characteristics.......anyone?
    Mike Kurta
  ----- Original Message -----=20
  From: Dave Nereson=20
  To: Pianotech=20
  Sent: Wednesday, June 11, 2003 5:22 AM
  Subject: Re: PVC-E & Sharps



    ----- 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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