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07-09-2007, 08:35 AM
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Join Date: Jun 2006
Location: Ottawa, Ontario, Canada
Posts: 2,116
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conduit and proseal
I have the flexible conduit for wiring from Vans. I drilled the holes in my wing ribs as per Vans instructions. They say to gob some proseal around the edges of these holes to prevent them from cutting through the conduit. One thing is not clear to me... is the idea to gob the proseal around the holes and then let it dry before pushing the conduit through? Or to push the conduit through while the proseal is still wet (messy job??) so that it dries in contact with the conduit?
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Phil
RV9A (SB)
Flying since July 2010!
Ottawa, Canada
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07-09-2007, 08:54 AM
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Join Date: Mar 2006
Location: Ottawa, ON
Posts: 650
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Push through, and gob it on
Hi Phil,
We pushed it through, then gobbed it on. You just want to prevent the vibrations from having the rib cut through the conduit.
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Alfio
RV-9A Ottawa, Canada
First flight Dec. 18, 2008
> 1,000 hrs tach.
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07-09-2007, 09:17 AM
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Join Date: Dec 2005
Location: Eastern PA
Posts: 625
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Phil:
You might try RTV; it's easier to work with. Put a bead on both sides of the rib around the conduit after it's installed.
Jekyll
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07-09-2007, 09:19 AM
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Join Date: Jun 2006
Location: Ottawa, Ontario, Canada
Posts: 2,116
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Ok thanks. And how much conduit did you guys leave sticking out of the end ribs (inboard and outboard)?
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Phil
RV9A (SB)
Flying since July 2010!
Ottawa, Canada
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07-09-2007, 10:42 AM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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I left a foot on the root and about 6" on the tip. Can be trimmed back later if needed.
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07-09-2007, 12:27 PM
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Join Date: Aug 2005
Location: Pasadena CA
Posts: 2,484
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I try to avoid RTV in permanet installations, it's not really great for aluminum, and it comes off after awhile. I'd stick with proseal.
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Originally Posted by Jekyll
Phil:
You might try RTV; it's easier to work with. Put a bead on both sides of the rib around the conduit after it's installed.
Jekyll
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Stephen Samuelian, CFII, A&P IA, CTO
RV4 wing in Jig @ KPOC
RV7 emp built
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07-09-2007, 01:15 PM
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Join Date: Oct 2005
Location: Highland Village, TX
Posts: 1,519
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Aviation grade RTV
Non acidic RTV is fine on aluminum. Proseal is great stuff but probably overkill for the conduit. I used high quality RTV for the conduit and also for snap bushing plus many other places where I don't really need the strength of proseal.
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Rick Aronow,
A&P
Flying 7A Slider;
RV-12 SOLD
Highland Village,TX
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07-09-2007, 02:15 PM
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Join Date: Jun 2007
Location: Merritt Island, FL
Posts: 602
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what about silicone adhesive?
How about silicone adhesive? I used a few dollops of it to adhere a heavy telescope mirror to a metal mirror mount a number of years ago and it is still strong and flexible. I suppose Van's recommends Proseal (or its equivalent) as that is what they have handy.
I have gone to Home Depot and asked for RTV and I got this wierd look. I thought everyone knew what RTV was, but they don't seem to have it.
__________________
Jeff Rosson
Repeat Offender
RV14 - Working on Empennage/Tail Cone
RV9A - Completed! First flight on July 18, 2012!
Based at Merritt Island, FL (KCOI)
VAF Number: 1170
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Star Trek Quote: "Logically, it could work. Also, logically, there are a hundred variables, any one of which could put us in a worse position than we're in now." Mr. Spock in Return to Tomorrow
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07-10-2007, 08:26 AM
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Join Date: Nov 2006
Location: Azle, TX
Posts: 352
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They can't even spell RTV
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Originally Posted by Jeff R
I have gone to Home Depot and asked for RTV and I got this wierd look. I thought everyone knew what RTV was, but they don't seem to have it.
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I bought a tube of silcone especially made for aluminum sealing/bonding at HD to use in my elevator TE's. Be a guy and don't ask for help. Just find it yourself!
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Bill Grant, A&P
8KCAB, M20G
RV-4: Fuselage controls
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07-10-2007, 09:00 AM
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Join Date: Jan 2005
Location: Lake St. Louis, MO.
Posts: 2,346
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Quote:
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Originally Posted by Jeff R
......I thought everyone knew what RTV was.....
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Quick sports fans.....without looking it up (VAF honor system), who will be the first to tell us what RTV stands for? 
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Rick Galati
RV6A N307R"Darla!"
RV-8 N308R "LuLu"
EAA Technical Counselor
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