Polycarbonate Sheet, highly regarded for its strength and extreme impact resistance it is 90% optically clear and half the weight of glass.
Polycarbonate sheeting is Class 1 fire rated so a great alternative to Perspex Acrylic for Colleges, Schools hospitals or airports where safety is vital.
The material performs well to cold bend fabrication, however, if heat bending the sheet would need to be dried in a oven to prevent moisture from forming bubbles.
Bonded with the correct solvent adhesives, you can machine to shape and drill.
Although it is not totally unbreakable, it is around 250 times stronger than glass of a equal thickness and currently the toughest plastic material on the market.