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Coroplast Glue... what works?

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S.P.A.D. Aircraft - Coroplast design Discuss the growing area of S.P.A.D.S. (Simple Plastic Airplane Designs). Coroplast type aircraft, pizza box planes, etc..

Coroplast Glue... what works?

Old 04-11-2005, 12:11 AM
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motorbikemikexb9
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Default Coroplast Glue... what works?

Hey all,

myself and a few others are going to build spad "GNATS" for combat at our local club. I have tried several types of glues and nothing seems to work. what kind of glue works well on coroplast?
Old 04-11-2005, 12:19 AM
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kbear
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Default RE: Coroplast Glue... what works?

CA glue works well, but you must flash the corro first. If you don't know what this means, goto the spad home page and check out the debonair build. I think it will have the most info on techniques, becuase it is a trainer.
Old 04-11-2005, 12:26 AM
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MrGreenSpeed
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Default RE: Coroplast Glue... what works?

As far as I know nothing needs glued on a Gnat, except the pvc control horns.
Every thing is held on with screws or zip ties.
I find the best glue method for coro is.
Clean the surfaces with paint thinner ( mineral spirits )
Wood pecker tool and CA with kicker. ( instant glue joint. )
Or
Wood pecker and Polyurethane glue. ( mist one side with water ) over night glue joint.
Hope this helps
Jeff.
Old 04-11-2005, 05:49 AM
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Wynterhawk
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Default RE: Coroplast Glue... what works?

If you use the search feature here and search for "gluing coroplast" you'll find several threads on the subject. Mr. Greespeed highlighted the two most successful I think but there has been alot of experimenting with glues. I use the Probond Polyeurethene method - sand the surfaces with 80 grit paper, wipe with alcohol, glue one side moisten the other and clamp over night. This method works for me but the disadvantage is that you have to keep it clamped overnight. Its no biggy for me, I just make the gluing the last thing I do at night...good luck

Old 04-11-2005, 01:11 PM
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FighterBird873
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Default RE: Coroplast Glue... what works?

I found contact cement and goop work really well. I've never gotten CA to stick worth anything. I got both the contact cenent and goop from "Hobby Lobby". I've had a lot of success with contact cement holding down the trailing edges of a wing. I use the goop for formers, and tail feathers. These aren't instant joints, but with so few joints needing to be glued, it never bothered me.
Old 04-11-2005, 01:14 PM
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Default RE: Coroplast Glue... what works?

I have yet to break a ca glue seam (not even crashing straight down at 100+ mph)...
Old 04-11-2005, 01:22 PM
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Default RE: Coroplast Glue... what works?

I found contact cement and goop work really well. I've never gotten CA to stick worth anything. I got both the contact cenent and goop from "Hobby Lobby". I've had a lot of success with contact cement holding down the trailing edges of a wing. I use the goop for formers, and tail feathers. These aren't instant joints, but with so few joints needing to be glued, it never bothered me.
Old 04-11-2005, 04:27 PM
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Default RE: Coroplast Glue... what works?

I've been using [link=http://www.homaxproducts.com/product%20images/730624.jpg]Welder[/link] by [link=http://www.homaxproducts.com/]Homax[/link]
Wal-mart sells it

Works better for me if you "flame" the coroplast first
Run a bead of welder along the joint, press together and pull apart
Let dry 3-4 min and push together, Voila, instant bonding, no clamping

BTW to flame sucessfully, you must use a blue flame (I use a small butane torch)
I tried it without, as a test, and the joint pulled apart

Haven't used CA since
PS don't mix flame with Welder

Pete Johnson
Old 04-11-2005, 06:20 PM
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I.C.O.N.
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Default RE: Coroplast Glue... what works?

It's as easy as Scotchbrite, windex and Krazy glue.

spray, scrub, dry and glue.

Works great. Not repositionable though.
Old 04-11-2005, 06:37 PM
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motorbikemikexb9
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Default RE: Coroplast Glue... what works?

Thanks for the tips guys. I'll give it a go tonight and see what happens.

Thanks again, Mike
Old 04-11-2005, 06:45 PM
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Default RE: Coroplast Glue... what works?

download the "gluing" document from my site. Must be 2-3 pages of what works as collected from lotso folks.

http://www.freewebs.com/rc_tips_and_hints/
Old 04-11-2005, 09:04 PM
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Smooth Spanky
 
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Default RE: Coroplast Glue... what works?

For those that have given up on using CA glue on Coro....I was about ready to give up on it myself at one point. Before I did, though, I tried a different kind of CA just to see what would happen. My simple experiment showed me that an old bottle of CA wouldn't work, but a fresh bottle of medium CA did indeed work. Give it a try.
Old 04-12-2005, 05:58 AM
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kbear
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Default RE: Coroplast Glue... what works?

Agreed, I always buy new CA for each project, and the smallest bottle that is enough for the job. I've always used CA and have never had a joint fail. Use kicker or leave the joint clamped long enough to let it cure. I've had CA joints that i wanted to pull apart, for one reason or another, where the corro ripped instead of the glue coming lose.

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