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Argonath
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Hello Fellow Canadian,

And welcome to the Depron deprived North.

You could go down to your local art supply store and try and find acid free paper foam board (used I believe for water colours).
The sheets I get are 40" x 30" with paper on both sides. The sheet weighs about 16 oz. with paper on it. Take the paper off
comes off in one sheet either side) and weigh it and you will find it weighs 12 oz. It leaves with sheet of foam that weighs 4 oz.and is approx. 5mm in thickness. A single sheet costs about $8.00

It builds well, but I usually laminate 2 pieces together to make wing surfaces more rigid.

Here are a couple of examples of planes this foam has made.

[ATTACH=CONFIG]15999[/ATTACH]


uh.... $8 + tax for a 30" x 40" piece of foam vs $1.25 + tax for a 20" x 30" piece of foam.... For $8 + tax I can buy a 4 foot by 8 foot sized piece of foam to do the same thing...

I can get Depron, it's just way too expensive to get.
D.I.L.L.I.G.A.F.
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Limie99
Argonath,

I can't get a 20" X 30" piece of foam locally here for $1.25 + tax........ I get what I can get and was offering a suggestion.

I have tried "dollar tree foam", actually it was from Michaels and it was a bitch to get the paper off. After the paper was off,
the foam seemed weak with no strength.

Remember I pm'd you awhile back looking for Depron and alternatives?

Nothing personal man..... but this is not a competition. If you have some good sources let us know.

If and when I find an alternative, which is cheaper, I will let the forum know.

Sorry for the rant, but your reply touched a nerve..... I have been looking for alternatives.
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squishy
You guys need to talk about the brands of foam, not where you bought it. The stuff I use is called Readiboard, and I leave the paper on for the most part...
"Education is not about filling buckets; it is lighting fires." W.B. Yeats

http://www.youtube.com/user/squishy654
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davjaramillo
I also have purchased the 20 x 30 foam board from Walmart. Now my issue is... am i the only noob that cant figure how to fit my parts? I am starting off with the x-31 v1 to learn from but the tiled plans call for four pages of paper stacked in portrait view. Now I am no mathematician but isn't that 44 inches? (4 X 11). any help or pointers i would appreciate. I like the size of version 2 but thought for my first attempt why spend any more $ than I have to.
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Skydiver
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Hi there, I am from Canada and I am building the F22 v2... Depron is impossible to find here, so I'm using the 3/16 inch "project board" or dollar tree board. I have read some people having problems with this stuff they leave the paper on, such as the taped hinges becoming loose as the paper delaminates from the board. My question is,how are you removing this paper? I wish there was another product that was readily available to me besides this foam board., makes me want to print the plans out at 200 % and use 1/2 inch foam..... Hmmmmm, makes me think
Larry

Hey Larry, use straight denatured alcohol on the Adams readi-board and the paper backing will come off without tearing.. Give it 1or 2 minutes and start at a corner.. This plagued me too.....
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Skydiver
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You guys need to talk about the brands of foam, not where you bought it. The stuff I use is called Readiboard, and I leave the paper on for the most part...

I also use the Readi-Board, and straight denatured alcohol on it for 1 or 2 minutes (see my post on th subject) I gave up on Elmer foam and this stuff has a manageable grain to it as well.. Cross laminate it for the wings, grain vertical for the vertical stabs. Maybe leave the paper on one side if using rudder.. I like elevons only myself...I
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jimbosflyin
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I also use the Readi-Board, and straight denatured alcohol on it for 1 or 2 minutes (see my post on th subject) I gave up on Elmer foam and this stuff has a manageable grain to it as well.. Cross laminate it for the wings, grain vertical for the vertical stabs. Maybe leave the paper on one side if using rudder.. I like elevons only myself...I

If you only take the paper off one side it will curl.
Parkflyers International 
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Skydiver
Right, so now I do both sides and primer it to maintain some rigidity..
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jimbosflyin
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Right, so now I do both sides and primer it to maintain some rigidity..

If your looking to build a plane out of Dollor Tree Foam there is a thread that mentions how to use it leaving the paper on and coating it with min-wax and how to do the hinges
Parkflyers International 
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