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Old Sep 06, 2010, 03:59 AM
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Malaysia, Federal Territory of Kuala Lumpur, Kuala Lumpur
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What type / name of foam for wing core ?

I'm planning to build a DLG wing but i can't really find a good foam over here i can do the job ..... all we got in the stationary shop is the 5mm depron or the highly compressed beaded foam (aka polystrene)

What is the name of those blue / green foam that u guys using anyway ?
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Old Sep 06, 2010, 05:29 AM
working to the closest cm
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brisbane australia
Joined Nov 2002
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>can't really find a good foam over here

Quote:
Originally Posted by lamafever View Post
I'm planning to build a DLG wing but i can't really find a good foam over here i can do the job ..... all we got in the stationary shop is the 5mm depron or the highly compressed beaded foam (aka polystrene)

What is the name of those blue / green foam that u guys using anyway ?
>can't really find a good foam over here

Where is over here? maybe some local knowledge could help
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Old Sep 07, 2010, 12:30 AM
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Malaysia, Federal Territory of Kuala Lumpur, Kuala Lumpur
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Hahaha Malaysia .... all art shops are only selling 5mm Depron or those beaded compress foam. Factories are selling them as in boxes instead of pieces.



Quote:
Originally Posted by jirvin_4505 View Post
>can't really find a good foam over here

Where is over here? maybe some local knowledge could help
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Old Sep 07, 2010, 03:51 AM
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The extruded foam that we like might be available from refrigeration companies...the kind that might install a walk-in freezer for a resturant. The terms "extruded polystyrene" or "rigid insulation foam" might help. Good luck.
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Old Sep 07, 2010, 06:19 PM
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Try a local search for Isoboard (the DOW product name), you could also try insulators, concreters or builders (it's used as insulation underneath concrete slabs as well) or try contacting DOW directly to see if they have local distributors.
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Old Sep 07, 2010, 06:41 PM
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art supply stores are another place to try.

if you are going to hotwire cut the wing, i think you need it about 1" thick (around 25mm).

good luck!
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Old Sep 08, 2010, 03:51 AM
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Well there's no luck from the local stationary shop, they only have those cheap compress beaded foam .... the only one i can find is beaded but much more denser :P ..... is there any way i can fill the imperfection of the surface after cutting ? What i have is light weight similar to the balsa filler. Should i mix it with epoxy ?

I'm planning fill those rough surfaces, sand it and do wet layup.
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Old Sep 13, 2010, 04:04 PM
G_T
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Beaded foam cores will likely fail early and be rather difficult to repair in a DLG wing. They crumble. I'd recommend to keep searching.

Gerald
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Old Sep 16, 2010, 01:25 AM
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Michigan
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As above try Dow first. Then try these local guys http://www.yeehup.com/products/ as they seem to do both expanded and extruded polystyrene foams. Local surfing guys would know where to go for foam as well....
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