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</head><body bgcolor="#FFFFFF" text="#000000">I'm preparing to do
tip-to-tip glass on a 38mm minimum-diameter build. My plan is to attempt
vacuum bagging, not so much because it's needed, but because I want to
figure out how to do it. <br>
<br>
I was planning to order from Fiberglast until I saw these references to
US Composites and The Composites Store. Those are much appreciated. They
look to be a bit cheaper, especially with shipping, and The Composites
Store looks much more in-tune with model builders as opposed to
production-scale work. <br>
<br>
One question I could use some help with...for an application like this,
what weight of cloth should be used? I'm guessing 2oz, but having not
done it before I'm lacking a point of reference. <br>
<span>
</span><br>
Thanks,<br>
Kevin <br>
<br>
<blockquote style="border: 0px none;"
cite="mid:1537851596.533911364@apps.rackspace.com" type="cite">
<div style="margin:30px 25px 10px 25px;" class="__pbConvHr"><div
style="width:100%;border-top:1px solid #EDEEF0;padding-top:5px"> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:49%;">
<a moz-do-not-send="true" href="mailto:tom@theweeks.org"
style="color:#737F92
!important;padding-right:6px;font-weight:bold;text-decoration:none
!important;">Thomas Tweeks Weeks</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#9FA2A5"><span style="padding-left:6px">September
25, 2018 at 12:59 AM</span></font></div> </div></div>
<div style="color:#888888;margin-left:24px;margin-right:24px;"
__pbrmquotes="true" class="__pbConvBody"><font face="arial" size="3"><p
style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">Yeah.. I was looking at Fiberglast Bob..
but they are a bit more $$. And Jordan turned me on to US Composites
(who I hear actually produces all West Systems stuff):</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"><a moz-do-not-send="true"
href="http://www.uscomposites.com/vacuum.html">http://www.uscomposites.com/vacuum.html</a></p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">(suggestions welcome)</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">I haven't had a real need to bag anything yet.
Most of my projects are fairly small, and since I'm doing this
tip-to-tip job.. I'm thinking about just doing peel ply, some bleeder
(purely for absorption) and maybe sand bagging for constant
pressure (since I don't have a vacuum bag setup, and doing it on partial
a tip-to-tip seems like a pain). </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">Comments/suggestions welcome though.</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">Tweeks</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">On Sunday, September 23, 2018 7:22pm, "Bob
Schoner" <a class="moz-txt-link-rfc2396E" href="mailto:bob.schoner@gmail.com"><bob.schoner@gmail.com></a> said:<br><br></p>
<div id="SafeStyles1537851036">
<p style="margin:0;padding:0;font-family: arial; font-size: 12pt;
word-wrap: break-word;">I have done vacuum bagging of plywood fins but
before they were installed. I used Teflon peel ply which is expensive
but works really well. I did a sandwich of plywood fiberglass peel ply
and bleeder cloth. I’ve used Fiberglast but there are other options. <br><br>Bob</p>
</div></font>
<div>_______________________________________________<br>NRVR-Members
mailing list<br><a class="moz-txt-link-abbreviated" href="mailto:NRVR-Members@mail.nrvr.org">NRVR-Members@mail.nrvr.org</a><br><a class="moz-txt-link-freetext" href="http://server2.nrvr.org/mailman/listinfo/nrvr-members">http://server2.nrvr.org/mailman/listinfo/nrvr-members</a></div></div>
<div style="margin:30px 25px 10px 25px;" class="__pbConvHr"><div
style="width:100%;border-top:1px solid #EDEEF0;padding-top:5px"> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:49%;">
<a moz-do-not-send="true" href="mailto:bob.schoner@gmail.com"
style="color:#737F92
!important;padding-right:6px;font-weight:bold;text-decoration:none
!important;">Bob Schoner</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#9FA2A5"><span style="padding-left:6px">September
23, 2018 at 7:22 PM</span></font></div> </div></div>
<div style="color:#888888;margin-left:24px;margin-right:24px;"
__pbrmquotes="true" class="__pbConvBody">I have done vacuum bagging of
plywood fins but before they were installed. I used Teflon peel ply
which is expensive but works really well. I did a sandwich of plywood
fiberglass peel ply and bleeder cloth. I’ve used Fiberglast but there
are other options. <br><br>Bob<br>
<div>_______________________________________________<br>NRVR-Members
mailing list<br><a class="moz-txt-link-abbreviated" href="mailto:NRVR-Members@mail.nrvr.org">NRVR-Members@mail.nrvr.org</a><br><a class="moz-txt-link-freetext" href="http://server2.nrvr.org/mailman/listinfo/nrvr-members">http://server2.nrvr.org/mailman/listinfo/nrvr-members</a></div></div>
<div style="margin:30px 25px 10px 25px;" class="__pbConvHr"><div
style="width:100%;border-top:1px solid #EDEEF0;padding-top:5px"> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:49%;">
<a moz-do-not-send="true" href="mailto:dwskb@att.net"
style="color:#737F92
!important;padding-right:6px;font-weight:bold;text-decoration:none
!important;">David Bloom</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#9FA2A5"><span style="padding-left:6px">September
23, 2018 at 1:37 PM</span></font></div> </div></div>
<div style="color:#888888;margin-left:24px;margin-right:24px;"
__pbrmquotes="true" class="__pbConvBody"><div>Forgot to mention if you
are not familiar with them go to The Composites Store for much info and
materials on what you are doing.<br>--------------------------------------------<br>On
Sun, 9/23/18, David Bloom <a class="moz-txt-link-rfc2396E" href="mailto:dwskb@att.net"><dwskb@att.net></a> wrote:<br><br> Subject:
Re: [NRVR-Members] Glassing - Best suppliers for peel ply?<br> To: "NRV
Rocketry Members" <a class="moz-txt-link-rfc2396E" href="mailto:nrvr-members@server2.nrvr.org"><nrvr-members@server2.nrvr.org></a><br> Date:
Sunday, September 23, 2018, 1:13 PM<br> <br> I thought you were using
plywood? Recall my<br> fins vibrated into shreds due to large size.
Are you<br> reinforcing plywood with carbon fiber or are the fins<br>
fiberglass? How many layers and are you doing anything<br> special to
reduce vibration?<br> --------------------------------------------<br>
On Sat, 9/22/18, Thomas Tweeks Weeks<br> <a class="moz-txt-link-rfc2396E" href="mailto:tom@theweeks.org"><tom@theweeks.org></a><br>
wrote:<br> <br> Subject: [NRVR-Members] Glassing -<br> Best suppliers
for peel ply?<br> To: <a class="moz-txt-link-rfc2396E" href="mailto:nrvr-members@nrvr.org">"nrvr-members@nrvr.org"</a><br>
<a class="moz-txt-link-rfc2396E" href="mailto:nrvr-members@nrvr.org"><nrvr-members@nrvr.org></a><br> Date: Saturday, September 22, 2018,<br>
11:44 PM<br> <br> Doing<br> a non-bagged (probably just<br>
weighted) fin, CF, tip to<br> tip job on my 5.5" Black Brant.. and<br>
need some<br> supplies. I'm using West Systems and a<br> course weave
CF<br> (not for looks.. it's just what I<br> have). <br> <br> Also..
I would love to hear discussion<br> on preferences of the<br> various
types of peel ply. The nylon<br> kind,<br> plastic/rayon/paper kinds,
or the kind<br> the red lines in<br> it..<br> <br> Do<br> you use
bleeder cloth (for catching<br> excess epoxy)?<br> <br> Tweeks<br> <br>
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