[pianotech] Epoxy

[Joseph Garrett]

Terry,
As I said, It was a while ago, and it could be as you say. I may have read
it or interpreted it wrong. I think I was wrong back in the 70's, but can't
remember the specifics on that either.<G>
As for System Three epoxies, I did not say it would cure slower at higher
temps. I think what I said was that heat didn't seem to make it cure
faster, as some epoxies do and some have assumed pertains to ALL epoxies.<G>
At one time or another, I think I've used most of the major epoxies and a
few some haven't even seen or heard of.<G> It's a huge part of my bag of
trix.<G> It is far more versital,(sp?) than CA is, imo.
Joe

> [Original Message]
> From: Terry Farrell <mfarrel2 at tampabay.rr.com>
> To: <joegarrett at earthlink.net>; <pianotech at ptg.org>
> Date: 11/5/2012 5:59:40 PM
> Subject: Re: [pianotech] Epoxy
>
> Hi Joe,
>
> I can't comment specifically on the epoxy you saw in the magazine because
you don't have the manufacturer, however all the epoxies I have read about
that are designed for use in cooler weather simply have the feature that
they will harden at cooler temperatures - they will still harden faster at
higher temperatures.
>
> I doubt that the article said that the epoxy would cure faster in cold
weather than warm - likely it simple pointed out that it WOULD cure in cool
weather.
>
> But if I am wrong (it happened once before in 1962), please provide
specifics so that I can expand my knowledge.
>
> Here's a link to System Three Cold Cure epoxy: 
http://www.systemthree.com/reslibrary/tds/Cold-Cure_TDS.pdf  It states that
it will cure down to 35 degrees F - doesn't say anything about curing
slower at higher temps.
>
> Thanks.
>
> Terry Farrell
>
> On Nov 5, 2012, at 12:48 PM, Joseph Garrett wrote:
>
> > Mike, 
> > I read an article in a Sailing magazine that said there were a few
epoxies
> > that were designed for colder temps, in making emergency repairs to a
boat.
> > Since it's been a while and I didn't consider it pertinent to what we
do, I
> > cannot recall the specific brand or group of epoxies it was. Suffice it
to
> > say, the article did state that some would set faster in cold. At the
time
> > I thought that was interesting, since I was always under the impression
> > that the heat generated by the chemical processes of epoxies, was the
> > determining factor. I wish I could be more specific in that regard.
> > Best,
> > Joe
> > 
> > 
> >> [Original Message]
> >> From: Mike Spalding <mike.spalding1 at frontier.com>
> >> To: <joegarrett at earthlink.net>; <pianotech at ptg.org>
> >> Date: 11/5/2012 9:11:26 AM
> >> Subject: Re: [pianotech] Epoxy
> >> 
> >> Joe,
> >> For our edification, can you name one epoxy that cures faster cold
than 
> >> hot?  This  cut-n-paste from the West Systems "how to use" page 
> >> summarizes the behavior of every epoxy I've ever used:
> >> 
> >> 
> >> 
> >> */Figure 1---/All resin/hardener combinations go through the
> >> same phases of cure. All combinations cure faster at warmer
> >> temperatures and cure slower at cooler temperatures.
> >> *
> >> cheers,
> >> 
> >> Mike