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Old Mar 06, 2002, 04:58 PM
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Ben74's Avatar
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Joined Jun 2001
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3M 77 will no longer be safe for EPS!

in case you haven't seen this:
http://216.40.226.212/~admin2/forums...threadid=31268
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Old Mar 06, 2002, 05:16 PM
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Capslock's Avatar
San Francisco, CA
Joined Nov 2001
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So, it's OK for EPP?

Since the thread implied that the instructions for the Zagi 3C (all EPP, not EPS) were unaffected, is it safe to assume that the new formula works fine on EPP?

Capslock
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Old Mar 06, 2002, 05:20 PM
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that's the impression i got. btw, the above post was just meant as an alert that the other thread exists. let's keep the discussion of this topic consolidated over there
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Old Mar 06, 2002, 07:30 PM
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SW Wisconsin
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Fortunately, there are alternatives. I use another type of spray adhesive that we sell at our hardware storee. It comes in a blue can. If anybody would like the brand name, I could get it for them.

-Brett
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Old Mar 08, 2002, 11:34 AM
!sdrawkcaB ylF
Atlanta, GA
Joined Feb 2002
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Brett,

I am interested! In the post someone mentioned Elmers brand spray adhesive. What are you using? What results have you found?

Has anyone used Contact cement?
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Old Mar 08, 2002, 12:15 PM
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Palmdale, CA
Joined Oct 2000
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Some time ago I used a cheap spray glue instead of 3M on a wing.. looked OK.. but after the skins were on, the next day.. the foam was kinda flat..
Not much airfoil shape left.
Plane flew.. a simple sloper, but it does pay to test whatever you have on what you going to use it on. The backside of one of the core shucks is a handy place.. just a small area..
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Old Mar 08, 2002, 02:13 PM
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Butte, MT
Joined Sep 2001
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I'm the one who suggested 'Elmers'. Worked good for me (K-Mart didn't have 3M stuff, so tried Elmers Extra Stength since the bottle said foam safe). I tested as Sparky just suggested, both heavy coats and light on the core shucks. No problem found with melting (this is on foam used in Wedgie). I tested strength by putting down packing tape on 'wet' (right after spray) and then dry (wait a couple of minutes). After waiting for ~15 minutes I pulled off the tape. Some foam came with it on the 'wet' and was harder to pull off. The dry pulled little spects of foam with it but was easier to pull. Good 'nuff' for me.
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