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  #1  
Old 05-05-2006, 12:13 PM
gbrasch gbrasch is offline
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Default Tip: Alternative to Pro-Seal

This product is NOT intended for fuel applications. My IA/A&P suggested I use the following product for bonding surfaces. It is approved for aircraft use and is non-corrosive. I used it on a trailing edge and it worked great. Thought I would pass it on to those that might not already know: 3M Scotch Weld 2216 B/A Epoxy Adhesive. BTW, it was easy to use, 1 part to 1 part, but keep it clear of clecos, don't ask me how I know.
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Old 05-05-2006, 07:10 PM
Highflight Highflight is offline
 
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I'll second that.
I discovered 2216 many years ago when I was trying to find a better (the best) adhesive for attaching fiberglass wheel flares to steel fenders on a 240ZX (I said it was a long time ago ).

Most of the people doing that kind of custom work were using a standard fiberglass layup using either polyester or epoxy resin. Neither one lasted that long, but then I did some research and came across the 2216.

That stuff is bullet proof, and don't ever assemble anything with it that you ever want to take apart in the future.
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  #3  
Old 05-05-2006, 08:42 PM
mdredmond mdredmond is offline
 
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Is it flexible enough to be safe for tanks?
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  #4  
Old 05-05-2006, 10:24 PM
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osxuser osxuser is offline
 
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Well, they said it is not intended for use with fuel.
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  #5  
Old 05-05-2006, 10:38 PM
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N916K N916K is offline
 
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OK, so who carries this stuff?
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  #6  
Old 05-05-2006, 11:46 PM
gbrasch gbrasch is offline
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http://www.aircraftspruce.com/catalo...scotchweld.php
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  #7  
Old 05-06-2006, 05:27 AM
Highflight Highflight is offline
 
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Quote:
Originally Posted by mdredmond
Is it flexible enough to be safe for tanks?
Do NOT use if for any fuel immersion application.
But you can use this to bond anything else to anything. The great thing about it IS it's flexibility after cure (but you better be patient because it takes a loooong time to cure). But when I say flexible, I don't mean rubbery, I mean that it won't crack from vibration or shock because it doesn't cure brittle like fiberglass resins.

It's also kind of drooly and can run out of too large a gap so you want to be sure you have good mating surfaces. It is the consistency of creamy peanut butter that's been warmed up in a microwave oven (doesn't everybody warm their peanut butter before serving?). The good thing is that you have lot's of time to position your parts together.

Try gluing any two items together and do a failure test (after a couple of days full cure time) and you will be amazed. If you disturb it before cure, however, you'll destroy the integrity of the bond so start all over.
It's too bad that it ISN'T fuel proof because if it was, it really would be a great tank assembly sealant.
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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

Last edited by Highflight : 05-06-2006 at 05:30 AM.
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