Epoxy

[Carl Meyer]

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Mark, thanks, but
I don't think that thinning with solvent is a good idea since that would =
cause the material to shrink.  If you added 10 % solvent it would =
evaporate and reduce the epoxy in size.  For some sealing applications =
it might be an advantage, but for instance to solidify a cracked =
pinblock the shrinkage would be detrimental.  One big plus for epoxy is =
that it has no volatile chemicals to cause it to shrink during cure.

Regards

Carl Meyer  Assoc. PTG
Santa Clara, California
cmpiano@attbi.com=20

  ----- Original Message -----=20
  From: bases-loaded@juno.com=20
  To: pianotech@ptg.org=20
  Sent: Saturday, January 05, 2002 8:01 PM
  Subject: Re: Epoxy


  Carl -

  Probably won't get it down to the viscosity of water, but liquid wood =
(Abatron) has a solvent that can be added to further reduce the =
viscosity of the epoxy. =20

  You can make it Very runny....

  Mark Potter
  bases-loaded@juno.com


  On Sat, 5 Jan 2002 16:44:39 -0800 "Carl Meyer" <cmpiano@attbi.com> =
writes:
    Everytime I hear someone say I have an epoxy that is really thin, I  =
want to shout out "HOW THIN IS IT?"

    I found a great site at   =
http://xtronics.com/reference/viscosity.htm

    Water at 20 degrees C has a viscosity of 1.002cP (centi-poise)
    Olive oil   is 82
    Light machine oil is 102
    Caster oil is 986
    Honey is 10000
    Ketchup is 50000
    Peanut butter is 250000      Etc

    Epotec 301 is 100
    West systems thinnest is 725
    Liquid wood is 500

    Epotec301 is expensive since it is optical grade.  I'm waiting for a =
spec sheet for clear coat, but I think it is similar to liquid wood.

    There may be other qualities of epoxy that will enhance penetration, =
but I would think viscosity would be the primary one.
    Warming the pinblock, bridge or other items helps a great deal.  A =
lot of spec sheets don't list viscosity, hardness and other parameters =
and there is no easy way to compare. =20

    Still learning all I can about epoxy!!

    Regards

    Carl Meyer  Assoc. PTG
    Santa Clara, California
    cmpiano@attbi.com=20


      ----- Original Message -----=20
      From: David Love=20
      To: Pianotech=20
      Sent: Tuesday, January 01, 2002 9:50 PM
      Subject: Epoxy


      I keep hearing mention of an epoxy that is the consistency of =
water.  Who makes this product and where can I get it. =20


      David Love


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