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Old 07-20-2014, 10:28 PM   #1
Theplumber
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Default Crash and hot glue

Let's say i crash (I do this alot lol!) I always go back home and hot glue everything back together, and usually have to replace the broken prop. I have a portable power source, if i hot glue say my wing back on, how long do i have to wait for it to be strong enough to fly again, meaning fix at field and get back up? Thank's in advance!
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Old 07-20-2014, 10:44 PM   #2
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Hot glue is set once it reaches ambient temperature. Depending on the plane hot glue is not always preferred for fixing foam. It can get heavy very fast and melt on a hot day. For quick field fixes try epoxy instead. Or for even lighter fixes try a foam safe ca.

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Old 07-20-2014, 10:46 PM   #3
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The one i keep crashing is a tech one bf109 epp foam. I have epoxy, have never used ca, which is better? (I also have shoe goo but have not used) I have broke both wings off in the same place (The plane has several rods, but does not go all the way thru, was thinking of adding a full piece of carbon fiber rod from 1 wing to the other. Good idea or bad?
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Old 07-20-2014, 10:53 PM   #4
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Asking for which glue is better is like asking which transmitter is better. You'll get lots of opinions and each one will be different.
Best advise is to try them all and find out which glue you like working with the best.
If you need a somewhat flexible joint epoxy is not the best as it dries stiff. CA holds well but doesn't fill gaps. Hot glue is quick and easy but is heavy and flexible.
I use many different glues depending on the need. If you limit yourself to only one repair method you'll most likely end up with unsatisfactory results.

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Old 07-20-2014, 11:14 PM   #5
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Hot glue and a tin of Cocktail sticks ................... + for serious bbq skewers ...........

Note that many foams actually do not glue well with Hot glue ... it's ok for a short temp fix ... but over time often peels away.

I carry a 10w mains HG gun with an inverter for quick field repairs ... fine. But once I'm home - I peel of the hot glue and do a proper repair job.

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Old 08-24-2014, 02:39 PM   #6
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I am more of a 5 minute epoxy and foam save CA guy. Never used hot glue.

I heard great reports on Foam-Tac but have not used it myself. I have a bottle but have not opened it yet.
http://www.foam-tac.com/

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Old 09-13-2014, 04:35 PM   #7
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Foam-Tac is amazing stuff. With EPP foam I use hot glue and Foam-Tac. On other foam it's 5 minute epoxy. It's tempting to use Gorilla Glue White but I've had bad experience with it.

It is not at all UV resistant and quickly turns into a dried out friable foam with no strength at all. Then it turns into powder. Found that out the hard way repairing a Slow Stick wing. I might still use it for fuselage repair, but just don't trust it for anything structural now.
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Old 09-13-2014, 05:23 PM   #8
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I have invested in a HK lipo powered Hot Glue gun ..... runs of my useless rubbish bin 3s packs that are no longer flight capable.

Worth the few $.....

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Old 09-13-2014, 08:01 PM   #9
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Never thought of that and I have such a rubbish battery pack! Thanks Nigel.
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Old 09-14-2014, 11:57 AM   #10
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Originally Posted by Rockin Robbins View Post
Never thought of that and I have such a rubbish battery pack! Thanks Nigel.
Absolutely .... no need to put a good lipo to it. I have real crap 3s that wouldn't fly anything ... even charger doesn't like them. The HK gun works on them fine. The gun is 10W.

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