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<DIV><FONT size=2>Thanks Gray.</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=gfowler@Raytheon.com href="mailto:gfowler@Raytheon.com">Gray E
Fowler</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 Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 17, 2006 10:30
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Thinning
Hobbypoxy...?</DIV>
<DIV><BR></DIV><BR><FONT face=sans-serif size=2>Laquer thinner is fine...as
you state it is a blend, and works well...no water</FONT> <BR><FONT
face=sans-serif size=2><BR><BR><BR>Gray Fowler<BR>Principal Chemical
Engineer<BR>Composites Engineering</FONT> <BR><BR><BR>
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<TD width="40%"><FONT face=sans-serif size=1><B>"Karl G. Mueller" <<A
href="mailto:kgamueller@rogers.com">kgamueller@rogers.com</A>></B>
</FONT><BR><FONT face=sans-serif size=1>Sent by: <A
href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A></FONT>
<P><FONT face=sans-serif size=1>04/17/2006 09:20 AM</FONT>
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<DIV align=center><FONT face=sans-serif size=1>Please respond
to<BR>NSRCA Mailing List <<A
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>></FONT></DIV></TR></TBODY></TABLE><BR></P>
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<DIV align=right><FONT face=sans-serif size=1>To</FONT></DIV>
<TD><FONT face=sans-serif size=1>"NSRCA Mailing List"
<nsrca-discussion@lists.nsrca.org></FONT>
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<DIV align=right><FONT face=sans-serif size=1>Subject</FONT></DIV>
<TD><FONT face=sans-serif size=1>Re: [NSRCA-discussion] Thinning
Hobbypoxy...?</FONT></TR></TBODY></TABLE><BR>
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<TD></TR></TBODY></TABLE><BR></TR></TBODY></TABLE><BR><BR><BR><FONT
size=2>Gray,</FONT> <BR><FONT size=3> </FONT> <BR><FONT size=2>I have
been using Lacquer Thinner with good success. It contains all</FONT> <BR><FONT
size=2>of the ingredients mentioned like Toluene, methyl ethyl ketone,
methanol</FONT> <BR><FONT size=2>and acetone. Do you see anything why it
should not be used as a thinner</FONT> <BR><FONT size=2>for epoxy ?</FONT>
<BR><FONT size=3> </FONT> <BR><FONT size=2>Karl G. Mueller</FONT><FONT
color=blue size=2><U><BR></U></FONT><A
href="mailto:kgamueller@rogers.com"><FONT color=blue
size=2><U>kgamueller@rogers.com</U></FONT></A> <BR><FONT size=3>----- Original
Message ----- </FONT><BR><FONT size=3><B>From:</B> </FONT><A
href="mailto:gfowler@raytheon.com"><FONT color=blue size=3><U>Gray E
Fowler</U></FONT></A><FONT size=3> </FONT><BR><FONT size=3><B>To:</B>
</FONT><A href="mailto:nsrca-discussion@lists.nsrca.org"><FONT color=blue
size=3><U>NSRCA Mailing List</U></FONT></A><FONT size=3> </FONT><BR><FONT
size=3><B>Sent:</B> Monday, April 17, 2006 9:46 AM</FONT> <BR><FONT
size=3><B>Subject:</B> Re: [NSRCA-discussion] Thinning Hobbypoxy...?</FONT>
<BR><BR><FONT face=sans-serif size=2><BR>Del</FONT><FONT size=3>
<BR></FONT><FONT face=sans-serif size=2><BR>Sorry for a late reply...was on
Vacation.</FONT><FONT size=3> <BR></FONT><FONT face=sans-serif
size=2><B><BR>DO NOT use rubbing alcohol. </B><BR>I realize that many advocate
this and swear it works but it is not a good idea. That 90% means 90%
isopropyl and 10% water. Isopropyl is not an efficient <BR>epoxy solvent and
worse- water messes up the amine curing agents,,,badly. you will lose fuel
resistance and make the cure soft and gummy.</FONT><FONT size=3>
<BR></FONT><FONT face=sans-serif size=2><B><BR>IF there is no polystyrene</B>
foam (wing cores, some mfgs "core" fuse structure) then use acetone or methyl
ethyl ketone (MEK). These are much better and will ensure total evaporation
from a thin "fuelproofing" application. </FONT><FONT size=3><BR></FONT><FONT
face=sans-serif size=2><BR>If there is polystyrene foam then an alcohol must
be used. Methyl alcohol is the best, but semi hard to find. Ethyl alcohol is
second best and is usually called "denatured alcohol" which means it is100%
Ethanol with a nasty tasting additive (Everclear has water
too).</FONT><FONT size=3> <BR></FONT><FONT face=sans-serif size=2><BR>Home
Depot/Lowes has these solvents.</FONT><FONT size=3> </FONT>
<P><FONT face=sans-serif size=2>In any case no puddling and thickness build up
allowed.</FONT><FONT size=3> <BR></FONT><FONT face=sans-serif size=2><BR>Also
to improve the quality of Hobby poxy cure (the real slow cure stuff) Mix the
epoxy and allow to sit in a mass (ex-a cup)for 15-30 minutes before
thinning.</FONT><FONT size=3> </FONT><FONT face=sans-serif size=2><BR>This
epoxy has a polyamide curing agent that requires "induction" to ensure a
really good cure.<BR><BR><BR>Gray Fowler<BR>Principal Chemical
Engineer<BR>Composites Engineering</FONT><FONT size=3> <BR><BR></FONT>
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<TD width="46%"><FONT face=sans-serif size=1><B>"Del K. Rykert"
<drykert2@rochester.rr.com></B> <BR>Sent by:
nsrca-discussion-bounces@lists.nsrca.org</FONT><FONT size=3> </FONT>
<P><FONT face=sans-serif size=1>04/12/2006 06:08 PM</FONT><FONT size=3>
</FONT><BR>
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<DIV align=center><FONT face=sans-serif size=1>Please respond
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<DIV align=right><FONT face=sans-serif size=1>To</FONT></DIV>
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<DIV align=right><FONT face=sans-serif size=1>Subject</FONT></DIV>
<TD><FONT face=sans-serif size=1>[NSRCA-discussion] Thinning
Hobbypoxy...?</FONT></TR></TBODY></TABLE><BR><BR>
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<TD width="50%"></TR></TBODY></TABLE><BR></TR></TBODY></TABLE><BR><FONT
size=3><BR><BR></FONT><FONT face=Arial size=2><BR>I have a Question? Does
anyone know of of a thinner that would be acceptable to use to thin hobbypoxy
to make it flow more freely to moisture proof.. Strength is not
required. I do realize all the rules against thinning epoxy in normal use but
looking to make it less viscous, besides using heat? Thanks for your
thoughts.</FONT><FONT size=3> </FONT><FONT face=Arial size=2><BR></FONT><FONT
size=3> </FONT><FONT face=Arial size=2><BR>
Del <BR> nsrca -
473</FONT><FONT size=3> </FONT><FONT face=Arial size=2><BR></FONT><FONT
size=3> <BR></FONT><FONT
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