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Agree: I had the pleasure of meeting/judging them at the Nats'.
Great flyers, very knowledgeable.
<br>We're very fortunate to have so many folks who are so skilled at many
disciplines which apply to our hobby/sport on this list. And, more
importantly, they are so willing to share their expertise with us.
<p>Bill Glaze
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<font size=-1>I have got to tell
you, from the e-mails I have read from Gray and Lance in the last few weeks
as I ready to build my Entropy. I have learned a TON about glass and gear.
this is VERY VERY cool.</font> <font size=-1>Thanks guys,</font> <font size=-1>Van</font><font face="Arial"><font size=-1>________________________________________________</font></font> <font face="Arial"><font size=-1>Van
Flowers</font></font>
<br><font face="Arial"><font size=-1>AMA: 6216 IMAC: 2229</font></font>
<br><font face="Arial"><font size=-1>IMAA: 26019 NSRCA: 2778</font></font>
<br><font face="Arial"><font size=-1><a href="http://www.rc-aerobatics.com">www.rc-aerobatics.com</a></font></font>
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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 href="mailto:gfowler@raytheon.com" title="gfowler@raytheon.com">Gray
E Fowler</a></div>
<div style="FONT: 10pt arial"><b>To:</b> <a href="mailto:discussion@nsrca.org" title="discussion@nsrca.org">discussion@nsrca.org</a></div>
<div style="FONT: 10pt arial"><b>Sent:</b> Friday, September 06, 2002 12:37
PM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> RE: What is CABOSIL ??</div>
<p><br><font face="sans-serif"><font size=-1>Mike</font></font>
<p><font face="sans-serif"><font size=-1>Neither cabosil nor microballoons
are structural and they way you are using them is correct. Cabosil does
not change the strength of the epoxy much at all and is used just to increase
the thixotropic index -to make it not flow. 6% cabosil by weight when mechanically
mixed will turn a low viscosity resin into jelly. Microballoons do reduce
the strength of the epoxy but most of the time this is okay becuase it
is still strong enough for our airplane applications. And as you know microballoons
greatly increase volume and reduce the density of the epoxy.</font></font>
<br>
<br>
<p><font face="sans-serif"><font size=-1>Gray Fowler</font></font>
<br><font face="sans-serif"><font size=-1>Principal Chemical Engineer</font></font>
<br><font face="sans-serif"><font size=-1>Composites Engineering</font></font>
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<td><b><font face="sans-serif"><font size=-2>"Baiano, Mike [HCS]" <MBaiano2@HCSUS.JNJ.com></font></font></b>
<br><font face="sans-serif"><font size=-2>Sent by: discussion-request@nsrca.org</font></font>
<p><font face="sans-serif"><font size=-2>09/06/2002 11:08 AM</font></font>
<br><font face="sans-serif"><font size=-2>Please respond to discussion</font></font></td>
<td>
<br><font face="sans-serif"><font size=-2>
To: "'discussion@nsrca.org'"
<discussion@nsrca.org></font></font>
<br><font face="sans-serif"><font size=-2>
cc: </font></font>
<br><font face="sans-serif"><font size=-2>
Subject: RE: What is CABOSIL
??</font></font></td>
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<p><font face="Arial"><font color="#0000FF"><font size=-1>HI Verne,</font></font></font>
<p><font face="Arial"><font color="#0000FF"><font size=-1>So does micro-balloon
expoxy mixtures have any structural strength? I have both micro-balloons
and cabosil - and I'm never quite sure when I should use one as opposed
to the other. I generally reserve the cabosil when I just want to thicken
epoxy into a paste, and weight isn't a huge issue. How do you decide which
one to use for a particular application?</font></font></font>
<p><font face="Arial"><font color="#0000FF"><font size=-1>Thanks,</font></font></font>
<br><font face="Arial"><font color="#0000FF"><font size=-1>Mike</font></font></font>
<br><font face="Tahoma"><font size=-1>-----Original Message-----</font></font>
<br><font face="Tahoma"><font size=-1><b>From:</b> Verne Koester [<A HREF="mailto:verne@twmi.rr.com">mailto:verne@twmi.rr.com</A>]</font></font>
<br><font face="Tahoma"><font size=-1><b>Sent:</b> Thursday, September
05, 2002 11:41 PM</font></font>
<br><font face="Tahoma"><font size=-1><b>To:</b> discussion@nsrca.org</font></font>
<br><font face="Tahoma"><font size=-1><b>Subject:</b> Re: What is CABOSIL
??</font></font>
<p><font face="Times New Roman"><font size=+1>Cabosil is fumed silica sand.
It's extremely light weight. When mixed with epoxy finishing resin, it
creates a paste that won't run on vertical surfaces. It's also frequently
mixed with epoxy in a thinner mix and brushed into a mold to create the
external gel coat on a glass part which prevents pinholes from making it
to the surface of a part. On a clear epoxy-cloth piece, the epoxy/cabosil
mix can be seen in all the 90-degree corners to bridge the radius the cloth
can't make. It'll show as an opaque white as opposed to the clear epoxy/cloth
you see everywhere else. Down side is that it's much tougher to sand than
micro-balloons and has virtually no structural strength. Good stuff to
have around, though. I use it a lot.</font></font>
<p><font face="Times New Roman"><font size=+1>Verne</font></font>
<br>
<p><font face="Times New Roman"><font size=+0>----- Original Message -----</font></font>
<br><font face="Times New Roman"><font size=+0><b>From:</b> <u><font color="#0000FF"><a href="mailto:extra330@tampabay.rr.com">Van
- E-Mail LIST</a></font></u></font></font>
<br><font face="Times New Roman"><font size=+0><b>To:</b> <u><font color="#0000FF"><a href="mailto:discussion@nsrca.org">Pattern
LIST</a></font></u></font></font>
<br><font face="Times New Roman"><font size=+0><b>Sent:</b> Thursday, September
05, 2002 8:32 PM</font></font>
<br><font face="Times New Roman"><font size=+0><b>Subject:</b> What is
CABOSIL ??</font></font>
<p><font face="Times New Roman"><font size=-1>Don't think I know what this
is ?</font></font>
<br><font face="Times New Roman"><font size=-1>________________________________________________</font></font>
<p><font face="Times New Roman"><font size=-1>Van Flowers</font></font>
<br><font face="Times New Roman"><font size=-1>AMA: 6216 IMAC: 2229</font></font>
<br><font face="Times New Roman"><font size=-1>IMAA: 26019 NSRCA: 2778</font></font>
<br><u><font face="Times New Roman"><font color="#0000FF"><font size=-1><a href="http://www.rc-aerobatics.com/">www.rc-aerobatics.com</a></font></font></font></u>
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