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<DIV><FONT size=2>My exact experience also. Just a few drops per ounce of
mix, (proportion, not necessarily the amount mixed) stirred very well to
good brushing consistency, then put on without delay.</FONT></DIV>
<DIV><FONT size=2>I've also used Fiberglas Resin thinned with a few drops of
Acetone or MEK, and see little difference in the finished product over the long
haul. Big thing, (at least for me) is don't over-thin.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Bill Glaze</FONT></DIV>
<BLOCKQUOTE
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=patternlady@tds.net href="mailto:patternlady@tds.net">Linda A
Carnes</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">'General pattern
discussion'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, March 16, 2009 2:51
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] thinning
epoxy, how?</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> I always use 5
minute epoxy, and add a few drops of denatured alcohol until I thinned it to
the point I wanted, then painted it on. I use a heat gun to really make it
soak and it is always dried in sort time.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> I have one
plane with several years on it and no fuel-oil
damage.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> Also make sure
it gets into the holes for the fuel lines.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Sincerely</SPAN></FONT><FONT
color=navy><SPAN style="COLOR: navy"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Linda A.
Carnes</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>J Shu<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, March 16, 2009 2:45
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> General pattern
discussion<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re:
[NSRCA-discussion] thinning epoxy, how?</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Arial color=navy size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: navy; FONT-FAMILY: Arial">This is for the
firewall and pipe tunnel.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><BR>Regards,<BR>Jason<BR><A
href="http://www.shulmanaviation.com">www.shulmanaviation.com</A><BR><A
href="http://www.composite-arf.com">www.composite-arf.com</A></SPAN></FONT><o:p></o:p></P></DIV>
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<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">----- Original Message -----
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV style="font-color: black">
<P class=MsoNormal style="BACKGROUND: #e4e4e4"><B><FONT face=Arial
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A
title=gfowler@raytheon.com href="mailto:gfowler@raytheon.com">Gray E
Fowler</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern
discussion</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Monday,
March 16, 2009 2:35 PM<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Re:
[NSRCA-discussion] thinning epoxy, how?<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"><BR></SPAN></FONT><FONT face=sans-serif
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Jason</SPAN></FONT>
<BR><BR><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Use the finishing
resin...if no styrofoam core issues, cut with acetone of MEK, both sold at
Home Depot or Lowes. If the core is yellow-brown then that is a urethane
ridgid foam and okay for acetone/MEK. <BR></SPAN></FONT><BR><FONT
face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR><BR>Gray
Fowler<BR>Senior Principal Chemical Engineer<BR>Radomes and Specialty
Apertures<BR>Technical Staff Composites
Engineering<BR>Raytheon</SPAN></FONT> <BR><BR><o:p></o:p></P>
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<P class=MsoNormal><B><FONT face=sans-serif size=1><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"J
Shu" <jshulman@cfl.rr.com></SPAN></FONT></B><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">
</SPAN></FONT><BR><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Sent by:
nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">03/16/2009 01:25
PM</SPAN></FONT> <o:p></o:p></P>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Please respond
to<BR>General pattern discussion
<nsrca-discussion@lists.nsrca.org></SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD>
<TD
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<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
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style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">To</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"General
pattern discussion"
<nsrca-discussion@lists.nsrca.org></SPAN></FONT>
<o:p></o:p></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">cc</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD></TR>
<TR>
<TD
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<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Subject</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Re:
[NSRCA-discussion] thinning epoxy,
how?</SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<TABLE class=MsoNormalTable cellPadding=0 border=0>
<TBODY>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"><BR><BR><BR></SPAN></FONT><FONT
face=Arial color=navy><SPAN style="COLOR: navy; FONT-FAMILY: Arial">I have
Z-Poxy 30 min and Finishing resin</SPAN></FONT> <BR><FONT face=Arial
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><BR>Regards,<BR>Jason<U><FONT
color=blue><SPAN style="COLOR: blue"><BR></SPAN></FONT></U></SPAN></FONT><A
href="http://www.shulmanaviation.com/"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">www.shulmanaviation.com</SPAN></FONT></A><U><FONT
face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><BR></SPAN></FONT></U><A
href="http://www.composite-arf.com/"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">www.composite-arf.com</SPAN></FONT></A>
<BR>----- Original Message ----- <BR><B><SPAN
style="FONT-WEIGHT: bold">From:</SPAN></B> <A
href="mailto:gfowler@raytheon.com">Gray E Fowler</A> <BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> <A
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern
discussion</A> <BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B>
Monday, March 16, 2009 2:17 PM <BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion]
thinning epoxy, how? <BR><BR><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>Jason</SPAN></FONT>
<BR><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>When you say finishing
resin do mean epoxy or polyester? I do not understand your configuration of
bonding the horns, but if the bond is the only thing holding the horns on,
best use and adhesive. Laminating epoxies and all polyesters have low
peel strength = bad bond characteristics. Horns will experience a cleave
stress which is shear+peel, if there is any flex then lots of peel
stress.</SPAN></FONT> <BR><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>A <B><SPAN
style="FONT-WEIGHT: bold">good</SPAN></B> adhesive has thousands PSI shear
strength, but only 25 lbs of peel. Laminating resins peel =
0.</SPAN></FONT><BR><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>Gray
Fowler<BR>Senior Principal Chemical Engineer<BR>Radomes and Specialty
Apertures<BR>Technical Staff Composites
Engineering<BR>Raytheon</SPAN></FONT> <o:p></o:p></P>
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<P class=MsoNormal><B><FONT face=sans-serif size=1><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"J
Shu" <jshulman@cfl.rr.com></SPAN></FONT></B><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif"> <BR>Sent by:
nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">03/16/2009 11:46
AM</SPAN></FONT> <o:p></o:p></P>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Please respond
to<BR>General pattern discussion
<nsrca-discussion@lists.nsrca.org></SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
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<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
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<TD
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vAlign=top width="88%">
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"General
pattern discussion"
<nsrca-discussion@lists.nsrca.org></SPAN></FONT>
<o:p></o:p></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
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<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">cc</SPAN></FONT><o:p></o:p></P></TD>
<TD
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Subject</SPAN></FONT><o:p></o:p></P></TD>
<TD
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<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Re:
[NSRCA-discussion] thinning epoxy,
how?</SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
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style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD>
<TD
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><BR><BR><BR></SPAN></FONT><FONT face=Arial
color=navy><SPAN style="COLOR: navy; FONT-FAMILY: Arial"><BR>So much good
info. I'm gonna use Finishing resin to seal the motor area.
</SPAN></FONT><BR> <FONT face=Arial color=navy><SPAN
style="COLOR: navy; FONT-FAMILY: Arial"><BR>How bad of an idea would it to
be the finishing resin to glue in the fiberglass horns into the wood
surfaces?</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><BR><BR>Regards,<BR>Jason</SPAN></FONT><U><FONT
color=blue><SPAN style="COLOR: blue"><BR></SPAN></FONT></U><A
href="http://www.shulmanaviation.com/"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">www.shulmanaviation.com</SPAN></FONT></A><U><FONT
color=blue><SPAN style="COLOR: blue"><BR></SPAN></FONT></U><A
href="http://www.composite-arf.com/"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">www.composite-arf.com</SPAN></FONT></A>
<BR>----- Original Message ----- <B><SPAN
style="FONT-WEIGHT: bold"><BR>From:</SPAN></B> <A
href="mailto:gfowler@raytheon.com">Gray E Fowler</A> <B><SPAN
style="FONT-WEIGHT: bold"><BR>To:</SPAN></B> <A
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern
discussion</A> <B><SPAN style="FONT-WEIGHT: bold"><BR>Sent:</SPAN></B>
Monday, March 16, 2009 11:44 AM <B><SPAN
style="FONT-WEIGHT: bold"><BR>Subject:</SPAN></B> Re: [NSRCA-discussion]
thinning epoxy, how? <BR><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>Jim</SPAN></FONT>
<FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>Polyesters will not
cure when in contact with oxygen, leaving a sticky surface. If your surface
is not sticky after applying-curing polyester then you are using a "true"
polyester finishing resin, which is fine, BUT look out because to stop the
oxygen inhibition polyester "finishing" resins add 5% wax, which floats to
the surface and blocks the oxygen. I say lookout, because any future bonding
to this area will be extremely poor. If you are not bonding to an area
saturated with this resin you are fine.</SPAN></FONT> <FONT face=sans-serif
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>K&B paint was
fine, just a regular epoxy cured with a polyamide, meaning the mixture needs
to be "inducted" prior to use, that is mixed up and then sits in a mass for
a t least 15 minutes (read the instructions) or the polyimide will slightly
separate giving you a sticky surface.</SPAN></FONT> <FONT face=sans-serif
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>Unfamiliar Formula
U, but Concept clear works very well.</SPAN></FONT> <FONT face=sans-serif
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>I
always clear coat with Concept 2021..easy, lightweight and more durable. My
entire engine area is sealed with Concept clear or laminating
epoxy.<BR><BR><BR><BR><BR>Gray Fowler<BR>Senior Principal Chemical
Engineer<BR>Radomes and Specialty Apertures<BR>Technical Staff Composites
Engineering<BR>Raytheon</SPAN></FONT> <o:p></o:p></P>
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<P class=MsoNormal><B><FONT face=sans-serif size=1><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"J
N Hiller" <jnhiller@earthlink.net></SPAN></FONT></B><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif"> <BR>Sent by:
nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">03/16/2009 10:16
AM</SPAN></FONT> <o:p></o:p></P>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Please respond
to<BR>General pattern discussion
<nsrca-discussion@lists.nsrca.org></SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD>
<TD
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
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<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
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style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">To</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; WIDTH: 88%; PADDING-TOP: 0.75pt"
vAlign=top width="88%">
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"General
pattern discussion"
<nsrca-discussion@lists.nsrca.org></SPAN></FONT>
<o:p></o:p></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">cc</SPAN></FONT><o:p></o:p></P></TD>
<TD
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vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD></TR>
<TR>
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Subject</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Re:
[NSRCA-discussion] thinning epoxy,
how?</SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><BR><BR><o:p></o:p></SPAN></FONT></P>
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><BR><BR><BR></SPAN></FONT><FONT face=Arial
color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><BR><BR>Thank you
for the very informative information. I have never used epoxy for fuel
proofing. I've used Polyester finishing resin and K&B epoxy paint until
I ran out and recently Formula-U Polyurethane paint. What are your thoughts
on these alternate materials?</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I find fuel proof
compromising gouges are more visible using colored paint rather than a clear
coating.</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Jim
Hiller</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=Tahoma size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<B><SPAN style="FONT-WEIGHT: bold"><BR>From:</SPAN></B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Gray E Fowler<B><SPAN
style="FONT-WEIGHT: bold"><BR>Sent:</SPAN></B> Monday, March 16, 2009 6:24
AM<B><SPAN style="FONT-WEIGHT: bold"><BR>To:</SPAN></B> General pattern
discussion<B><SPAN style="FONT-WEIGHT: bold"><BR>Subject:</SPAN></B> Re:
[NSRCA-discussion] thinning epoxy, how?</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>Fast curing epoxy
adhesives such as the 30 minute are a bad initial choice. I realize that
thousands have used it in these applications, but that still does not make
it a good choice. The non reactive components in the fast epoxy plasticize
with age and methanol and nitro will seriously degrade the stuff. Using one
of the thinner slower curing laminating resins will require less solvent, if
any and provide a much longer lasting barrier. Any solvent added to an epoxy
needs to evaporate completely or you will created a problem. Denatured
alcohol (ethanol) evaporates very slowly. Cutting a fast cure epoxy with a
slow evaporating solvent is a recipe for trapping alot of solvent, making
the chemical resistant even worse. Methanol evaporates much faster and epoxy
is much more soluable in methanol. Be very careful using ketone solvents
(acetone, MEK) or aromatics (Toluene, Xylene) because many kit manufacturers
use styrofoam as a core material that will be destroyed in seconds with
all solvents except the alcohols.</SPAN></FONT> <FONT face=sans-serif
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>SO!</SPAN></FONT>
<FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>1. Use a thin
slower cure laminating resin</SPAN></FONT> <FONT face=sans-serif
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>2. Use
Acetone, MEK or Laquer thinner</SPAN></FONT> <FONT face=sans-serif
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>3. NO
puddles, super thin coat</SPAN></FONT> <FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>4. Alcohols if you have
a styrofoam core</SPAN></FONT> <FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR>5. rule #3
again</SPAN></FONT> <FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>6. If you only need
the plane to last 1 year, then use 15 minute epoxy and do not worry..it will
last 1 year or so.</SPAN></FONT> <FONT face=sans-serif size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><BR><BR>Gray
Fowler<BR>Senior Principal Chemical Engineer<BR>Radomes and Specialty
Apertures<BR>Technical Staff Composites
Engineering<BR>Raytheon</SPAN></FONT> <o:p></o:p></P>
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<P class=MsoNormal><B><FONT face=sans-serif size=1><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"J
Shu" <jshulman@cfl.rr.com></SPAN></FONT></B><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif"> <BR>Sent by:
nsrca-discussion-bounces@lists.nsrca.org</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">03/15/2009 02:15
AM</SPAN></FONT> <o:p></o:p></P>
<P><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
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<TBODY>
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vAlign=top bgColor=white>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Please respond
to<BR>General pattern discussion
<nsrca-discussion@lists.nsrca.org></SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD>
<TD
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
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<TABLE class=MsoNormalTable style="WIDTH: 100%" cellPadding=0
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<TD
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<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">To</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; WIDTH: 85%; PADDING-TOP: 0.75pt"
vAlign=top width="85%">
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">"NSRCA"
<nsrca-discussion@lists.nsrca.org></SPAN></FONT>
<o:p></o:p></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">cc</SPAN></FONT><o:p></o:p></P></TD>
<TD
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vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
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<o:p></o:p></SPAN></FONT></P></TD></TR>
<TR>
<TD
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vAlign=top>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><FONT
face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">Subject</SPAN></FONT><o:p></o:p></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face=sans-serif size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: sans-serif">[NSRCA-discussion]
thinning epoxy,
how?</SPAN></FONT><o:p></o:p></P></TD></TR></TBODY></TABLE>
<P><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<TABLE class=MsoNormalTable cellPadding=0 border=0>
<TBODY>
<TR>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt"
vAlign=top>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><BR><BR><BR>I want to
add another layer of sealer to the firewall and tunnel on my plane... what's
the best way to do it with epoxy? I've got 30 <BR>minute but not sure how to
thin it to seal
it.<BR><BR>Regards,<BR>Jason<BR>www.shulmanaviation.com<BR>www.composite-arf.com<BR>[attachment
"IMG_4498 (500 x 299).jpg" deleted by Gray E Fowler/US/Raytheon]
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