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11-09-2008, 09:48 AM
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Join Date: Jul 2006
Location: San Jose, CA
Posts: 35
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Repaired Canopy Crack
I repaired a 6" vertical crack w/ weld-on liquid and filled the "crack stop-drill hole" w/weld-on #16 solvent cement. However, some cement did spill to the outside of the hole to the canopy and now I am left with the problem of cleaning or "Polishing-Off" the residual.
Does any one have a Polishing Procedure to try to remove the dried cement and blend in the repaired canopy crack ??
ZMAN
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11-09-2008, 10:45 AM
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Join Date: Feb 2005
Location: N Mn
Posts: 299
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Depending how much glue? Wet sand 800,1000,1500,2000. Trying to sand the plexi as little as possible. Then buff with 3M Perfect-it 3000 (06062) then finish with 3M trizact spot finishing (06070) never letting it dry out! Clean cloth only!!! If using machine, buff with wool, finish with foam. WET. This 3M stuff is just like majic.  If you sand into the plexi to deep you will see it a mile away 
__________________
Frank Karasti
Hibbing, Mn
RV-9A
Flying--------->-
Last edited by FrankK90989 : 11-09-2008 at 04:25 PM.
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11-09-2008, 10:54 AM
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Join Date: Jul 2006
Location: San Jose, CA
Posts: 35
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thankx Frank, EAA had an article Nov 2007.."A Lesson in Plastic Repair" they talk about using the "Urethane Supply Company's -Headlight Magic restoration kit" to finish a canopy repair...Any thoughts...the kit uses wet-sanding pads from 120 grit to 12,000 grit, polishing cloths and buffing solution. Do you think this process is similar to your suggestion ?
Zman
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11-09-2008, 12:27 PM
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Join Date: Apr 2005
Location: KSLC
Posts: 4,021
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Quote:
Originally Posted by zman
thankx Frank, EAA had an article Nov 2007.."A Lesson in Plastic Repair" they talk about using the "Urethane Supply Company's -Headlight Magic restoration kit" to finish a canopy repair...Any thoughts...the kit uses wet-sanding pads from 120 grit to 12,000 grit, polishing cloths and buffing solution. Do you think this process is similar to your suggestion ?
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Van's sells a plexi polishing kit also. It has the required sandpaper, liquids, etc.
edit: maybe not, as I don't see it anymore.
L.Admason
Last edited by L.Adamson : 11-09-2008 at 12:32 PM.
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11-09-2008, 02:49 PM
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Join Date: Jan 2005
Location: MKE
Posts: 1,519
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Are you thinking of the Scratch-Off kit?
http://www.vansaircraft.com/cgi-bin/...ct=scratch-off
Great stuff, much, much better than the sandpaper based solutions like Micro-Mesh.
__________________
Jeff Point
RV-6, RLU-1 built & flying
Tech Counselor, Flight Advisor & President, EAA Chapter 18
Milwaukee
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11-09-2008, 06:26 PM
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Join Date: Apr 2005
Location: KSLC
Posts: 4,021
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Quote:
Originally Posted by sprucemoose
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Yes, that's it. I bought one a few years ago, but have been "chicken" to use it... 
L.Adamson |
11-09-2008, 06:37 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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ZMAN,
Could you give us some details on how you fixed these cracks?
Thanks!
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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