<br><font size=2 face="sans-serif">Del</font>
<br>
<br><font size=2 face="sans-serif">Sorry for a late reply...was on Vacation.</font>
<br>
<br><font size=2 face="sans-serif"><b>DO NOT use rubbing alcohol. </b></font>
<br><font size=2 face="sans-serif">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 size=2 face="sans-serif">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 size=2 face="sans-serif"><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 size=2 face="sans-serif">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 size=2 face="sans-serif">Home Depot/Lowes has these solvents.</font>
<br>
<p><font size=2 face="sans-serif">In any case no puddling and thickness
build up allowed.</font>
<br>
<br><font size=2 face="sans-serif">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 size=2 face="sans-serif">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>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>"Del K. Rykert"
<drykert2@rochester.rr.com></b> </font>
<br><font size=1 face="sans-serif">Sent by: nsrca-discussion-bounces@lists.nsrca.org</font>
<p><font size=1 face="sans-serif">04/12/2006 06:08 PM</font>
<table border>
<tr valign=top>
<td bgcolor=white>
<div align=center><font size=1 face="sans-serif">Please respond to<br>
NSRCA Mailing List <nsrca-discussion@lists.nsrca.org></font></div></table>
<br>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">"NSRCA Mailing List" <nsrca-discussion@lists.nsrca.org></font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">[NSRCA-discussion] Thinning Hobbypoxy...?</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2 face="Arial">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 size=2 face="Arial"> </font>
<br><font size=2 face="Arial">
Del <br>
nsrca - 473</font>
<br><font size=2 face="Arial"> </font>
<br><font size=3> </font><font size=2><tt>_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</tt></font>
<br>