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02-06-2016, 10:31 AM
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Join Date: Oct 2012
Location: Novato, Ca
Posts: 49
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Canopy "peel ply" step
Do I understand correctly that in the final steps of the fiberglass layup, the peel ply layer is applied only to add more resin for a smother finish? Then is the peel ply gently pulled off and discarded?
Thanks in advance,
Rich
__________________
Building RV-14A. #140061 
RV 14A N2261 flying as of 7/22/16 
KDVO Novato, Ca.
Rich
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02-06-2016, 10:58 AM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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It is primarily added over the top of the glass layup.
With peal-ply in place, capillary action draws resin up and out of the lay-up which will result in all of the weave of the the top layer of glass cloth being fully saturated with resin. Without the peal-ply, the top layer would not be fully saturated and there would be a lot of the weave texture showing (that would have to be either sanded off or further filled with resin).
The peal-ply is pulled off once the resin has fully cured.
The secondary benefit to using the peal-ply is it results in a surface that is fully ready (no other sanding or prep. necessary) for adding more glass layers or coats of resin if needed.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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02-06-2016, 11:22 AM
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Join Date: Oct 2012
Location: Novato, Ca
Posts: 49
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thank you very much for your quick response. That makes it very clear!
Rich
__________________
Building RV-14A. #140061 
RV 14A N2261 flying as of 7/22/16 
KDVO Novato, Ca.
Rich
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02-07-2016, 03:08 AM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,052
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And don't forget, peel ply is just Dacron - old scraps of Ceconite are just perfect, if you have end rolls of rib tape - better still as already cut up.
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020
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02-07-2016, 05:41 AM
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Join Date: Nov 2007
Location: Yarmouth, Nova Scotia
Posts: 2,408
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Quote:
Originally Posted by mike newall
And don't forget, peel ply is just Dacron - old scraps of Ceconite are just perfect, if you have end rolls of rib tape - better still as already cut up.
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For those new to aircraft building, these products are used on fabric covered aircraft, so perhaps your buddy might have leftovers if he built a fabric covered plane.
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Thanks Ron
RV-10 SOLD
RV-14 Flying
AirCam flying
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02-07-2016, 10:35 AM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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Quote:
Originally Posted by mike newall
And don't forget, peel ply is just Dacron - old scraps of Ceconite are just perfect, if you have end rolls of rib tape - better still as already cut up.
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Quote:
Originally Posted by Ron B.
For those new to aircraft building, these products are used on fabric covered aircraft, so perhaps your buddy might have leftovers if he built a fabric covered plane.
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Good tip
It is also mentioned in the RV-14 supplemental videos.
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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08-10-2017, 07:33 PM
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Join Date: May 2005
Location: Lincoln, NE
Posts: 73
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Excellent Videos
Quote:
Originally Posted by rvbuilder2002
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Scott,
These videos are excellent. Thanks for putting these together. I'm preparing to do this on my 7. I'm going to lean on these quite heavily.
Also, nice presentation @ OSH17.
Doug
RV-7
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