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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
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