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Have you thought about an epoxy or urethane coating?  There are a ton  
of these hard shell finishes out there....I've used on foam on much  
bigger pieces and it is really really tough....Don't know if the  
weight of a 1/16" finish coat would be....
	


On Jun 18, 2009, at 4:49 PM, Anna Grace at Explorit wrote:

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> I hope someone can help.
>
> We have a small wind tunnel with shapes that fit on a sled in the  
> test section.  We have used styrofoam for the shapes, but they  
> don't last very long.  We tried coating the styrofoam with foam  
> coat, which helped extend their life, but they are still getting  
> really beat up.  I was wondering if anyone else has a similar  
> exhibit or any suggestion on what material we can use for durable,  
> lightweight shapes.  Does balsa wood hold up?
>
> Thanks,
> Anna
>
> Anna Grace
> Exhibit Coordinator
> [log in to unmask]
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