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epp foam super glue activator

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epp foam super glue activator

Post by Guest on Tue May 12, 2009 12:58 pm

In anticipation thanks for the answers to the question.

can you just stick epp foam together with CA or must you use an Activator first ?If you do and Im sure you do where do you spray it.On both pieces of foam ?Also if foam to plastic do you need Activator?

tell you guys what,this forum is a Godsend. Rolling Eyes

john

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Re: epp foam super glue activator

Post by Mark Barnes on Tue May 12, 2009 1:00 pm

You dont need to use activater but it helps as cyno takes forever to go off on epp

If you use it glue one surface spray activater/kicker on the other then press together after a slight hiss joint will be solid

M
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Re: epp foam super glue activator

Post by Andy Sayle on Tue May 12, 2009 1:13 pm

I would use a different adhesive all together on EPP. The problem (I find) with CA on EPP, is that when it eventually cures, it is a very brittle glue joint. As you probably know, EPP flexes and bends very well (which is what makes it so good for aircraft, eh Barnesy? It bounces soooo well! heh heh Twisted Evil ). Anyway, this means that the joint will eventually start to crumble, and come adrift.

I find it much better using a flexible adhesive, that can bend and flex with the EPP. Evostik (contact adhesive) is REALLY good for joining wing cores together where the join covers a large area, and zap-a-dap-a-goo (thick rubbery stuff, Steve Webbs stock it) is really good for gluing servos, horns, motor mounts and stuff in. Both give a glue joint that is really strong on EPP, and bounces really well too.

Cheers
Andy

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Re: epp foam super glue activator

Post by Mark Barnes on Tue May 12, 2009 1:28 pm

further to Andys comment i tend to use uho-pour for all the big bits and cyno for horns hinges and repaires

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Re: epp foam super glue activator

Post by Andy Sayle on Tue May 12, 2009 1:56 pm

Aye, the POR glue is a good alternative to contact adhesive, it's less smelly for a start! That said, you can't beat a bit of solvent up your nose clown

Andy

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Re: epp foam super glue activator

Post by Guest on Tue May 12, 2009 2:34 pm

tell you what Mark when my Blade Dancer if finished,made from EPP foam Ill let you do a

Crash flight on it or should that be Test flight:lol:

ps can you buy Activator for CA local or must you go to the Model shop

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Re: epp foam super glue activator

Post by Tim on Tue May 12, 2009 2:43 pm

Also, some activators are not foam friendly ( as are some CA )
For quick repairs, a hot glue gun works OK too, but does tend to pile the weight on if you dont watch it.

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Re: epp foam super glue activator

Post by Guest on Tue May 12, 2009 8:43 pm

activators are fine on epp its ploystyerene that they eat

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Re: epp foam super glue activator

Post by Rich on Tue May 12, 2009 9:19 pm

if you pop into roger jones they have it in an aerosol, thorncliffe might as well
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Re: epp foam super glue activator

Post by Mark Barnes on Wed May 13, 2009 8:39 am

didnt know Rogers had it thats good to know
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Re: epp foam super glue activator

Post by Rich on Wed May 13, 2009 8:40 am

I think it's about £6 they do it in packs with cyno or on it's own, the double glazing lads use it for the plastic
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Re: epp foam super glue activator

Post by Bob G on Wed May 13, 2009 4:11 pm

The fella with the rc car shop on the end of the Rhuddlan straight also stocks Zap a dap a goo.

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