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  #11  
Old 01-02-2020, 08:18 PM
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PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
Posts: 333
Exclamation Avoid electrical tape

Quote:
Originally Posted by RV8JD View Post
Thanks for this, I just learned something; Vans says to not use electrical tape on the canopy. I wouldn't have thought of that, but good to know about it.
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Building RV-6A #22320 O-320 FP. Wings and tail complete, working on fuselage
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  #12  
Old 01-02-2020, 10:25 PM
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Thermos Thermos is offline
 
Join Date: Jan 2005
Location: KASH
Posts: 498
Default

It looks like Van's used vinyl (electrical?) tape when masking the RV-14 canopy in their "Canopy Fiberglass Fairing: How-To Video Series" -

https://www.vansaircraft.com/faq/can...-video-series/

Maybe Scott/rvbuilder2002 can chime in here and clarify what was being used.

Dave
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  #13  
Old 01-02-2020, 10:31 PM
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Wunderon Wunderon is offline
 
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Location: Seattle (Edmonds) and Iowa
Posts: 200
Default

the electrical tape warning refers to Lexan, not acrylic. It’s ok to use a good quality electrical tape to mask the canopy for fiberglass layup, but I wouldn’t leave it on any longer than necesssry.
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  #14  
Old 01-03-2020, 09:33 AM
PropMan PropMan is offline
 
Join Date: Dec 2008
Location: Donie,Texas
Posts: 199
Default

Plexus has Always worked for me.

https://www.aircraftspruce.com/catal...ges/plexus.php
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  #15  
Old 01-03-2020, 10:39 AM
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rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
Default

Quote:
Originally Posted by Thermos View Post
It looks like Van's used vinyl (electrical?) tape when masking the RV-14 canopy in their "Canopy Fiberglass Fairing: How-To Video Series" -

https://www.vansaircraft.com/faq/can...-video-series/

Maybe Scott/rvbuilder2002 can chime in here and clarify what was being used.

Dave
Quote:
Originally Posted by Wunderon View Post
the electrical tape warning refers to Lexan, not acrylic. It?s ok to use a good quality electrical tape to mask the canopy for fiberglass layup, but I wouldn?t leave it on any longer than necesssry.
Dave already provided the correct answer.
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Van's Aircraft Engineering Prototype Shop Manager
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  #16  
Old 01-03-2020, 03:57 PM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 5,516
Default Tip Lens Not the same material.

Getting OFF TOPIC - the tip lenses are vinyl (or something) and WILL melt with alcohol. I was polishing one and decided to test a piece of scrap first, yep isopropyl alcohol will soften and mar the tip lens
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RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
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  #17  
Old 01-04-2020, 09:09 AM
laz laz is offline
 
Join Date: Feb 2013
Location: OH
Posts: 140
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I used 3M Adhesive remover. It nose not attack the plexiglass. Use it very sparingly and test a small area, of course. This stuff is designed to remove adhesive from paint without attacking the paint. I removed spots from my RV 8 canopy over 2 years ago and have never seen any marks left by the remover.

The stuff is expensive but a can will last you years. It is excellent fro removing all kinds of stuff from paint without leaving a mark.
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  #18  
Old 01-04-2020, 09:24 PM
DickDe DickDe is offline
 
Join Date: Apr 2006
Posts: 201
Default Reply to Jeff W.

Bushing part Number...there is none. Bushings were cut out of neoprene gas line material used in chainsaw engines. I also did the same with left over nylon brake line material from Van's brake kit. A small tool I made out of 2 scrap pieces of plexiglas and a single edge razor blade. Two pieces of plexi were pop riveted together flat & shimmed apart at the edges to give the targeted bushing height. One piece of plexi had a hole the same diameter of the gas line material drilled in it. The shims provided the control of the length of multiple bushings. The razor blade slipped between the two pieces of plexi to cut the gas line to form a bushing which was held in the hole.
I made a few of these devices shimmed differently to provide all the bushings I needed and I cut 20 to 30 at a time. The idea was to capture the canopy between two pieces of aluminum and the grip of the fastener would grip the bushing and NOT the canopy but the bushing was only .005" to .010 Thicker than the canopy. The RV6 canopy was fairly consistent in thickness but the RV8 had a narrower canopy which is very thick at the aft end so bushings of various sizes had to be cut. All holes were countersunk as well for the dimpled aluminum strips and fasteners. This whole process costs almost nothing but there is some added labor which is manageable. I never considered Sikaflex as my first build was before I heard of the stuff (1990's) and I did not like Van's pop rivets on the bare canopy but a similar process was used in some Cessna windscreens I did.

Dick DeCramer
Faribault, MN
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