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10-12-2005, 12:00 PM
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Join Date: Oct 2005
Location: Atlanta
Posts: 3
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Attaching Canopy with Adhesive??
Did you use adhesive to attach your canopy plexi? What brand/spec adhesive did you use? Are you pleased with the results? Did you not use any rivets? It seems to me the adhesion is no better than the powder paint on the canopy frame being glued to. Why not scrape off the powder coat to adhere plexi to bare metal? How do adhesives accommodate the extensive (4X) thermal expansion rate of plexi over aluminum/steel? I am thinking of a mix of rivets (piece of mind) and adhesive. And, perhaps only using rivets on one end of each plexi panel (slider) to accommodate expansion. Sure wouldn't want to have a blow off. Your wisdom please.
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10-12-2005, 01:45 PM
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Join Date: Jan 2005
Location: Cameron Park, CA
Posts: 73
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SikaFlex 295UV
John,
I bonded my canopy to the slider frame using SikaFlex 295UV and so far (18 hours) it is working well. There have been a few threads on this subject, search for Sikaflex.
I scuffed the powder coated canopy frame before bonding.
The Sika product needs to be a minumum thickness derived from a table in the data sheet to account for the CTE difference. The adhesive is pliable and stretches to accomodate CTE.
I have a few pictures at:
http://websites.expercraft.com/skytrash/
Jim Bray
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10-13-2005, 05:23 AM
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Join Date: Dec 2004
Location: Gold Hill, NC25
Posts: 2,400
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Adhesive works
It is holding no problem.
I have about 60 hours, most of it @200kts. Canopy, skirts, and windscreen all glued no rivets.
There is no chance of it coming off OR ever cracking via natural causes.
Kahuna
S8
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10-22-2005, 10:48 AM
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Join Date: Aug 2005
Location: Delft, the Netherlands
Posts: 216
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SikaFlex rules
We glued our tip-up canopy and it sure works fine. It is very important however to use the correct cleaner and primer. For more details view: http://websites.expercraft.com/PHVII...ry&log_id=6287
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10-22-2005, 08:38 PM
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Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
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I have about fifty hours on my RV-7A built using the RV sika instructions from sport aviation. I'm very happy with how it turned out.
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10-23-2005, 05:06 PM
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Join Date: Jan 2005
Location: England
Posts: 1,087
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Which Sport Aviation
Which issue of Sport Aviation was the article published in? I must have skipped reading it.
Thanks, Pete
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10-23-2005, 06:33 PM
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Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
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Quote:
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Originally Posted by penguin
Which issue of Sport Aviation was the article published in? I must have skipped reading it.
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Alas - I've misplaced it now. It was about two years ago - an article by Chalkie <forgot last name> in South Africa. A very good write-up on how to use Sika to bond on a RV canopy.
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10-23-2005, 08:31 PM
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Join Date: Jan 2005
Location: Houston, TX
Posts: 472
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I'm just about 99% decided myself that I will be going with a bonded on canopy soon, so I've done a little research myself.
Chalkie Stobbart is the name you're looking for, and here's a reference on the Matronics list that might point you in the right direction:
http://www.matronics.com/photoshare/...za.02.01.2004/
__________________
RV7-A - Slider (QB Fuse and Wings)
Mattituck IO-360 (AFP) w/2 P-mags
Catto 3-Blade
SJ Cowl and Plenum
Panel: Dual GRT EFIS / EIS4000 / PMA8000B / SL-30 / SL-40 / Internal GRT GPS / GTX 327
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10-24-2005, 08:57 AM
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Join Date: Jul 2005
Posts: 293
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Clecos??
I would like to do it without any holes too. How did you stabilize the canopy while cutting front from rear? No holes = no clecos.
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10-30-2015, 06:43 PM
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Join Date: Jun 2007
Location: Idaho Falls, ID
Posts: 134
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Sport Aviation Jan 2004
Quote:
Originally Posted by kevinh
Alas - I've misplaced it now. It was about two years ago - an article by Chalkie <forgot last name> in South Africa. A very good write-up on how to use Sika to bond on a RV canopy.
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Sport Aviation Jan 2004 pg 97
__________________
VAF# 835
RV-7A- Instrument Panel/FWF/Engine Mounted
Slow build --- ALL THE WAY
Victim of SB-632-B
2020 Dues Paid
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