What's the difference between polycarbonate and acrylic?

Polycarbonate and acrylic are both clear plastics. Polycarbonate is extremely impact resistant, more flexible, and handles higher temperatures. However, it scratches more easily and is usually more expensive. Acrylic offers better optical clarity, is more scratch resistant, easier to cut and polish, and holds up better to UV exposure. Acrylic is also more affordable, but less durable under impact.