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Old Aug 15, 2013, 09:55 PM
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ForeverFlying's Avatar
Christiansburg, VA
Joined Sep 2002
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Best Glue for EPP?

Dear Forum,
What glues work good on 1.3 lb EPP foam?
The kit that I am working on (Fancy Foam 3Decathlon) says to use thin foam safe ca. I don't have any, and it is really expensive, and usually goes bad before I use it all.
I have Welder's Glue, epoxy, Titebond (alaphetic resin), Goop, and hot glue.
Thanks!
Mike
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Old Aug 16, 2013, 08:29 AM
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United States, PA, Beaver
Joined Sep 2001
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In find foam-tac works really well. Almost impossible to find the seam, and it is flexable. It may seem expensive, but a little goes a LING way. Most make the mistake of using too much.
It works like a contact cement, so read the directions before first use.
I find CAs to be to brittle for foam.

http://www.foam-tac.com/
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Old Aug 16, 2013, 11:49 PM
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Welder's worked great for me, but no idea where to buy it anymore...
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Old Aug 17, 2013, 03:02 AM
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Christiansburg, VA
Joined Sep 2002
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I got Welder's at Lowes.
I did a test, and it worked great! Strong bond and flexible. I'll try the foam-tac next time.
Thanks guys!
Mike
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Old Aug 17, 2013, 06:19 AM
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United States, NJ, Pennsville
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E6000 at Walmart in the craft section. Clear, flexible, won't hurt epp foam and a LARGE tube is about 3 bucks. This stuff will glue anything to anything although if used on other than epp foam, test first for possible melting.
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Old Aug 17, 2013, 08:38 AM
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Welders glue works great on EPP.
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Old Aug 18, 2013, 02:31 PM
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I'm sold on E-6000. It's amazing stuff. We had a local lfyer lose a plane down the slope for about 4 years, and one of us finally stumbled on it. The covering had faded to a dirty beige, but the E-600, which had been exposed to the sun and weather for those four years was still clear and flexible.

It's the hot setup for things like formers or servo trays in fiberglass fuses. Keep it away from EPS foam though. EPP is no problem.
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Old Aug 19, 2013, 11:11 AM
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United States, IA, Rockwell
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Another one for Foam Tac
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Old Aug 19, 2013, 06:22 PM
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United States, WI, Oconomowoc
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Bob Smith has a glue made for EPP?

I have it available on my web site: www.precision-aero.com
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Old Aug 29, 2013, 03:09 AM
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United States, CA, Norco
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Hot glue form a Hot glue gun on the low setting works great. Although it can get heavy real fast.
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Old Aug 29, 2013, 05:59 PM
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Gorilla Glue is what I use. The oozing can actually be advantageous at times.
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Old Aug 31, 2013, 04:37 PM
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On my original FunJet (EPO?) I used thin CA as the manual showed. I also tested Welder, Shoe Goo and Loctite Repair Extreme. The Repair Extreme did not stick well although it works great on vinyl and to hold my rear view mirror on. The Welder kinda yellows and will crumble if exposed to sunlight for a long time. The Shoe Goo worked best and is the least expensive. I don't know yet about sunlight. The Shoe Goo and Welder eat the foam a little bit. Maybe because of the Toluene. I used clear packing tape over the joint which is great. The thin CA is good for thin areas. Just press the parts together tight and wick in the crack. Nothing so far has come apart. I did not actually repair with the Welder or Extreme Repair after testing. The CA and Shoe Goo I did.
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Old Aug 31, 2013, 05:43 PM
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Just saw this new product in Model Aviation Magazine. BSI (Bob Smith Industries) BSI-141 1 ounce and BSI-142 4 ounce Foam-Cure. I could not find it at their web site www.bsi-inc.com but found it here: http://www.amainhobbies.com/product_...-Safe-Glue-1oz
Edit: Sorry paero, I didn't catch that your post is this same glue. Just a note that silicon is "sand" and silicone is "oil". Glues are not made from silicon. IC chips are.
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Old Sep 17, 2013, 12:48 AM
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Joined Jul 2013
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I'm pretty new at this, but I experimented with gorilla glue bought from a local hardware store, and it seems to glue just about anything. I'm building a rubber powered balsa plane using PVA white glue, and some one suggested I I put styro foam from packing crates inside the fuselage for strength. Gorilla glue filled up all the gaps from my rough cutting attempts too. I was lucky enough to get hold of a bumper bar from some sort of off road vehicle at the local wreckers for nothing, as the owner said it was made from EPP. It is way too expensive to buy where I live, so it was a great score. Gorilla glue really worked well on this kind of foam too. So I am looking forward to making a hot wire cutter from an old soldering iron and seeing what I can make.
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