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<P>Lance</P>
<P>I use .5oz glass cloth that will cut the weight by 1/3 if you are useing .75oz cloth and maby more than that because it will take less epoxy to fill the weave.</P>
<P>Buddy<BR><BR></P></DIV>
<DIV></DIV>
<DIV></DIV>>From: "Gray E Fowler" <GFOWLER@RAYTHEON.COM>
<DIV></DIV>>Reply-To: discussion@nsrca.org
<DIV></DIV>>To: discussion@nsrca.org
<DIV></DIV>>Subject: Re: HELP: glassing experiment
<DIV></DIV>>Date: Tue, 12 Nov 2002 16:17:59 -0600
<DIV></DIV>>
<DIV></DIV>>That tissue is in reality call a surfacing veil. It has one purpose in
<DIV></DIV>>life and it is not to put on wings. It really very little on no strength.
<DIV></DIV>>The idea is to place that stuff on a mold surface and since it is random
<DIV></DIV>>it allows the resin to retain cohesive strength, creating the same effect
<DIV></DIV>>as a gel coat, giving a 3 mil resin rich surface. The pits of weave are
<DIV></DIV>>due to the lack of resin cohesive strength. Is the veil lighter? Tell us
<DIV></DIV>>when you make it.
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>Gray Fowler
<DIV></DIV>>Principal Chemical Engineer
<DIV></DIV>>Composites Engineering
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>s.vannostrand@kodak.com
<DIV></DIV>>Sent by: discussion-request@nsrca.org
<DIV></DIV>>11/12/2002 04:04 PM
<DIV></DIV>>Please respond to discussion
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>> To: discussion@nsrca.org
<DIV></DIV>> cc:
<DIV></DIV>> Subject: HELP: glassing experiment
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>From: Lance VanNostrand
<DIV></DIV>>
<DIV></DIV>>I'm glassing some wings. Normally I do this with the traditional 3/4 oz
<DIV></DIV>>glass cloth. I just purchased a roll of 0.5 oz carbon tissue to
<DIV></DIV>>experiment
<DIV></DIV>>with. My hope is that the use of tissue will eliminate the weave and
<DIV></DIV>>simplify the process. I expected 0.5 oz carbon tissue to also be lighter
<DIV></DIV>>than 0.75 oz glass cloth but after examining the tissue, I'm not so sure
<DIV></DIV>>anymore. It has the "feel" of cheap toilet paper. In other words, it has
<DIV></DIV>>some thickness and toughness. It is light, as expected, as dry cloth, but
<DIV></DIV>>I'm concerned that it will absorb more epoxy resin than the glass cloth
<DIV></DIV>>and
<DIV></DIV>>be heavier in the end.
<DIV></DIV>>
<DIV></DIV>>Does anyone have experience with using carbon fiber or glass tissue on
<DIV></DIV>>airplanes? I may have to make some test panels if no one can help.
<DIV></DIV>>
<DIV></DIV>>Thanks,
<DIV></DIV>>--Lance
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>>
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