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EPO what's the difference??

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Spice Cat12/02/2012 22:08:27
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Not being a chemist but what is the difference (if any) between Elapor and EPO.
And is it so different from the packaging it's delivered in??
If not, why is it so expensive?????
Questions, questions, questions. It's winter; must keep occupied.
Seamus O'Leprosy12/02/2012 22:42:47
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Elapor is a trade name (multiplex) and basically the same as epo
David Ashby - Moderator13/02/2012 08:43:18
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Graupner call it Solidpor
Horizon (Parkzone etc.) Z-foam
Art-Tech - EPOFlexy
Great Planes - Aerocell
 
and so on....there can be subtle variations in foam density from model to model, manufacturer to manufacturer but it's all good ol' EPO.
Tim Mackey13/02/2012 08:53:31
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And mulitplex.... Elapor?
Seamus O'Leprosy13/02/2012 09:27:56
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Catch up Tim!
Tim Mackey13/02/2012 09:40:29
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That'll teach me to not just read the latest post and not the earlier ones
Mowerman13/02/2012 10:13:01
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I expect the reason for the high cost of EPO models is mainly due to the design and production of moulds and other tooling.
Back to the early days of plastic kits (Revel,Airfix, etc) I remember reading that the mould costs were in the order of £10K whilst the actual plastic used for the kit cost pence.
Perhaps a reader who is currently employed in the plastic moulding industry could do a write-up on the subject?
Seamus O'Leprosy13/02/2012 10:17:56
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I think you have covered all the interesting bits already.
Bill_B19/02/2012 19:48:39
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Posted by Spice Cat on 12/02/2012 22:08:27:
Not being a chemist but what is the difference (if any) between Elapor and EPO.
And is it so different from the packaging it's delivered in??
If not, why is it so expensive?

Expensive compared to what? There's a misconception that just because a plane is made of ''foam'' that it needs to be very cheap. Like has already been mentioned, the moulds are extremely costly to produce and this financial outlay has to be recouped some how. If you compare the latest Chris Foss ARTF Acro Wots, the built up version is about £126 and the foamie is about £135. Although the foamie is slightly smaller, it does come with all servos, motor, ESC, prop etc, where as the trad built ARF doesn't and in my book that makes the foamie version significantly cheaper.

Another question then; Which is more enviromentally friendly, a wooden kit or a foamie??

Codename-John19/02/2012 20:06:13
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Expensive compared to what? There's a misconception that just because a plane is made of ''foam'' that it needs to be very cheap. Like has already been mentioned, the moulds are extremely costly to produce and this financial outlay has to be recouped some how. If you compare the latest Chris Foss ARTF Acro Wots, the built up version is about £126 and the foamie is about £135. Although the foamie is slightly smaller, it does come with all servos, motor, ESC, prop etc, where as the trad built ARF doesn't and in my book that makes the foamie version significantly cheaper.

Another question then; Which is more enviromentally friendly, a wooden kit or a foamie??

you`d still have tooling to make i expect for kits, the dies for cutting parts, programming the laser cutter etc plus the labour for building the ARTF, with the foam you have 1 lackey at the beginning of the line inserting carbon rods, wood bits etc, press a button, bish bash bosh couple of seconds injecting the foam, out pops a plane.

And "environmentally" wood comes from trees, foam comes from chemicals wink 2

Spice Cat19/02/2012 21:05:35
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I prefer the wood version as most of my models are recycled as firewood!!

Myron Beaumont13/08/2012 15:26:02
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Still hesitant about which glue to use to attach the tail surfaces on my EasyGlider (Elapor/Epo).I've tried tests on poundland /"toolbox" superglue ,UHUpor and have some BELI-ZELL 10 min and 20 adhesives.I tried getting info on the Beli stuff but unfortunately don't understand german.UHUpor seems to work quite well but not having any scrap pieces to really test on ,all I've tried is the end of the rudder locating lug stuck to the inside of the canopy - approx an area of 1cm X 5mm.Which would you experts advise please . I'm a bit cheesed off with having to research all these (new to me) products but afraid to use the wrong stuff .Another headache I see forthcoming is to fasten the lipo over the wing internally so that I can get it in and out .It says mount the Rx in the front directly behind the motor.Never put an Rx in front of any heavy battery before! Help put my mind at ease so I can get it up sooner rather than later and might survive unexpected arrivals .

Myron

Pete B - Moderator13/08/2012 15:50:20
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As I mentioned yesterday, Myron, normal medium cyano and kicker is recommended. I used it on mine about 3 years ago and it is still fine (apart from when the dog kicked the fin off on landing) and even then it was the foam that broke and not the joint..........smile

It's the kicker that's important - using cyano alone doesn't seem to work.

Apply the cyano to one side, the kicker to the other and the job's donethumbs up

You haven't much choice with the battery position, so 'Use the Force, Luke', believe in your flying abilities and if you still have an arrival with the EG sufficient to mash the Rx with the Li-Po, you'll have done very well, believe me!

It is a pussycat, take my word for it!!!!!teeth 2

Now stop fretting, stick it together and get it up there whilst there's a bit of summer left......thumbs upsmile d

Pete

Myron Beaumont13/08/2012 15:59:25
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Pete

Only one problem ! I havn't any "kicker" and apart from driving about 60 miles round trip I was wondering about the glues I do posess

TinPot Pilot13/08/2012 16:01:30
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155 forum posts

Myron,

one thing not mentioned is that there is a release agent on the surface of the foam which helps prevent sticking! Wash the areas you want to stick first and let them dry and you will have fewer problems. Uhu Por is also good used as a contact adhesive ( if you don't want to use cyano ) but will slow down your build ,waiting for it to dry, and you only get one chance to get it right.

Pete B - Moderator13/08/2012 16:20:44
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Ah, no kicker......have you got a hot glue gun, or some Gorilla Glue? As TPP says, you only get one shot with UHU Por and it has to be used as a contact glue to work.

The 60 miles is a pain - much easier and quicker to order online from one of the quicker suppliers and wear the postal charges, or make the order worthwhile. Could be there by Wednesday....

Pete

Myron Beaumont14/08/2012 19:30:55
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Pete

Job done with Belli-Zell .Incredible stuff that I was given by Ashers some time ago to test .It's more like a welded joint than anything else I can think of .Now to programme my Futaba 6EX 2.4 GHz to include spoilerons & differential on the ailerons .A job for 'er indoors tomorrow .Am putting the FrSKY TFR6 Rx in the hollow in the underside of the canopy .It's so small .

Myron -foam & electric newcomer dept. Quite impressed actually !

Pete B - Moderator14/08/2012 19:54:09
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That's more like it!teeth 2

Differential is essential on the EG - the downgoing aileron is very draggy. I have about 1/3 of the upgoing throw on the downgoing, IYSWIM.....smile

Spoilerons - don't put too much to start with and put in a little up elevator, as without it, it comes down very quickly!smile o

Gain a few hundred feet before you try it out for the first time......

Looking forward to the maiden....thumbs up

Pete

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