Epoxy

[Delwin D Fandrich]

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  ----- Original Message -----=20
  From: Farrell=20
  To: pianotech@ptg.org=20
  Sent: January 02, 2002 4:50 AM
  Subject: Re: Epoxy


  Roger Jolly (bless his heart) refers to West System resin as being =
"water-thin" (I sure hope I have not mis-quoted Roger!). I asked him if =
he were using something different than I. He said no. It is definitely =
not water-thin, but it is indeed quite low in viscosity compared to many =
of the thick epoxies. With no fillers added, it has the consistency of =
something like motor oil. I would say it is thick enough to not wick =
into things real well like thin CA can. But I use it for installing =
bridge pins - it works real well, easy to handle, and will creep into =
little cracks next to pins that are present in so many old bridge tops. =
And of course you can make it as thick as you want with the various =
fillers.

  http://www.westsystem.com/ =20

  What is your intended use?

  I have heard from others that a product called Epotec 301 (my spell =
checker suggested "erotic", but I think it is Epotec) may be thinner =
than West System resin. I have not tried it. I had the address, but I =
cannot find it now. Anyone have the address?

I'm sure Epotec makes a fine product. But it sure is hard getting =
product information out of them.

We have used WEST system epoxies since the early '70s with much success. =
They make excellent products. But when it comes to coating epoxies we =
use SystemThree (http://www.systemthree.com) Clear Coat Epoxy.=20

To quote, "Clear Coat epoxy is a very low viscosity (thin) almost =
colorless epoxy system that has a long pot life and cures without amine =
blush. Unlike some of the so called penetrating epoxies, Clear Coat =
contains no solvent. Furthermore, it is a very strong system when cured =
whereas the penetrating epoxies have little, in any, strength or =
resistance to moisture." This stuff really is nearly water thin. It also =
requires an extended cure time--depending on the temperature from 36 to =
72 hours.

Del



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