It is also more costly than acrylic. Personally, I wouldn't recommend it for this application.

Here's a thought... there is probably some perfectly good reason not to do this, and I'm just not smart enough to figure it out.

But how about instead of usiing plexiglas/lexan/acrylic/whatever, you use glass? It's inexpensive, it's scratch-resistant, and if it's over a quarter of an inch thick, it is pretty unlikely to break.

tanstaafl.