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<DIV><FONT face=Arial size=2>Thanks Matt good info.</FONT></DIV>
<DIV><FONT face=Arial size=2>Mike</FONT></DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=rcmaster199@aol.com
href="mailto:rcmaster199@aol.com">rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, January 16, 2008 7:54
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
paint</DIV>
<DIV><BR></DIV>
<DIV><SPAN contentEditable=false style="DISPLAY: inline-block"></SPAN>Ron and
all,</DIV>
<DIV> </DIV>
<DIV>PPG urethanes, part A at least, have a long shelf life, on the order of
several years. As long as the paint has enough carrier to keep it fluid, it's
probably usable. I have not seen the material autocatalyze or have the
pigments come out of suspension. Pigments do settle but they should be easily
be brought back into suspension by stirring.</DIV>
<DIV> </DIV>
<DIV>Part B catalyst is another matter. These substances in general love
moisture and warmth (FLA and TX) and their shelf life is much shorter. In some
cases I've lost catalyst in a year or less even in a tight container. Too much
moisture introduced when used.</DIV>
<DIV> </DIV>
<DIV>To catalyze CONCEPT and OMNI urethanes, I've been using OMNI
catalyst with excellent results, (the fast cure hardener..it also comes in
slow which is too slow for our application). The chemistry is very similar if
not identical between CONCEPT and OMNI. The great thing about OMNI catalyst is
that it comes in pretty small packages (4 ozs) and has a metal sealing disk
insert on top. I simply pierce this disk to control both the amount of
catalyst dispensing as well as the amount of moisture introduced into the
container. OMNI cost is 1/3 to 1/4 that of CONCEPT and is used
1 part to 4 parts paint</DIV>
<DIV> </DIV>
<DIV>After 4 years of hibernation, I found and used my old catalyst stock with
both some CONCEPT and OMNI (also about 4 years old) to refinish Temptress' (5
years old) landing gear this past fall. Both paints cured normally and
produced very similar finish results (fine) FWIW</DIV>
<DIV> </DIV>
<DIV>On sandable primers, I've written about this a couple times before but I
guess people forget...it's hard to beat Klass Kote epoxy paints. Work better
than the old KB we used to love. These materials also have quite a shelf life.
My cans are 5 years old now and the paints in them still work fine. Catalyst
has yellowed slightly but it's no problem for primer coats</DIV>
<DIV> </DIV>
<DIV>Hope this helps you</DIV>
<DIV> </DIV>
<DIV>regards</DIV>
<DIV> </DIV>
<DIV>Matt</DIV>
<DIV><BR></DIV>
<DIV><BR></DIV>-----Original Message-----<BR>From: Ron Van Putte
<vanputte@cox.net><BR>To: NSRCA Mailing List
<nsrca-discussion@lists.nsrca.org><BR>Sent: Wed, 16 Jan 2008 11:22
am<BR>Subject: Re: [NSRCA-discussion] paint<BR><BR>
<DIV id=AOLMsgPart_3_9f7d6303-c0a2-4d36-9b0e-0acb5c1d5760>I have some PPG
paint I bought from my local PPG paint store a couple of years ago.
Before using it, I wonder if there's a recommended "use by" on any of
the paint elements.
<DIV><BR class=webkit-block-placeholder></DIV>
<DIV>Ron Van Putte</DIV>
<DIV><BR>
<DIV> </DIV></DIV></DIV>
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