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<DIV><FONT face=Arial size=2>Gray..</FONT></DIV>
<DIV><FONT face=Arial size=2> Thanks a bunch for your
reply. What you said makes perfect sense after reading it but I'm certain
I will get better results now. Have not tackled project yet so you were in
time.. vbg.. Thanks again.</FONT></DIV>
<DIV><FONT face=Arial size=2> </FONT></DIV>
<DIV><FONT face=Arial size=2> Del</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=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 9:46
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>Del</FONT> <BR><BR><FONT
face=sans-serif size=2>Sorry for a late reply...was on Vacation.</FONT>
<BR><BR><FONT face=sans-serif size=2><B>DO NOT use rubbing alcohol.
</B></FONT><BR><FONT face=sans-serif size=2>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 </FONT><BR><FONT face=sans-serif
size=2>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> <BR><BR><FONT face=sans-serif size=2><B>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><BR><BR><FONT
face=sans-serif size=2>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>
<BR><BR><FONT face=sans-serif size=2>Home Depot/Lowes has these
solvents.</FONT> <BR>
<P><FONT face=sans-serif size=2>In any case no puddling and thickness build up
allowed.</FONT> <BR><BR><FONT face=sans-serif size=2>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> <BR><FONT
face=sans-serif size=2>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> <BR><BR><BR>
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<TD width="40%"><FONT face=sans-serif size=1><B>"Del K. Rykert"
<drykert2@rochester.rr.com></B> </FONT><BR><FONT face=sans-serif
size=1>Sent by: nsrca-discussion-bounces@lists.nsrca.org</FONT>
<P><FONT face=sans-serif size=1>04/12/2006 06:08 PM</FONT>
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<DIV align=center><FONT face=sans-serif size=1>Please respond
to<BR>NSRCA Mailing List
<nsrca-discussion@lists.nsrca.org></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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<TD>
<DIV align=right><FONT face=sans-serif size=1>cc</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>
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<TD>
<TD></TR></TBODY></TABLE><BR></TR></TBODY></TABLE><BR><BR><BR><FONT face=Arial
size=2>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> <BR><FONT face=Arial
size=2> </FONT> <BR><FONT face=Arial size=2>
Del <BR>
nsrca - 473</FONT> <BR><FONT face=Arial size=2> </FONT> <BR><FONT
size=3> </FONT><FONT
size=2><TT>_______________________________________________<BR>NSRCA-discussion
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