Density of Plexiglass?

[AdamT]

If you want an example of the strength of polycarbonate.....

We usually use 1/2" for the majority of the structural walls. If you get anything thicker than 1/2", you're going into bulletproof strength and is extremely expensive. So, 5/8" polycarbonate will pretty much stop a bullet, what will acrylic do? Shatter everywhere.

Teeheehee, plus, our whole robot was pretty much made out of polycarbonate. Yup, polycarbonate rod, and sheet. It was cool...heh heheh