Lexan Polycarbonate Sheeting offer high impact strength

Bayer Makrolon Polycarbonate products offer a unique balance of useful features which include high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering materials.
Polycarbonate is a very tough material. Even though it offers high impact-resistance, it's got reduced scratch-resistance and thus a hard coating could be applied to polycarbonate eyeglasses lenses and polycarbonate exterior automotive components. The properties relating to polycarbonate are generally comparable to those of common Acrylic materials, but polycarbonate is always stronger, it is usable in a wider temperature range and is a bit more expensive. This plastic polymer is highly transparent to visible light and it has better light transmission characteristics than most grades of glass.
Polycarbonate has a glass transition temperature of about 150 °C (302 °F), consequently it softens slowly above this point and flows above about 300°C (572 °F). Tools are required to be held at higher temperatures, generally above 80 °C (176 °F) in order to make strain- and reduced stress products.
Unlike most other thermoplastics, polycarbonate can undergo large changes in basic shape without breaking or cracking. For that reason, it may be processed and formed   cold using standard sheet metal techniques, for instance forming bends with a brake. For even sharp angle bends having a tight radius, no heating is usually necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are required, which may not be created from sheet metal. Be aware that PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but it is brittle and can't be bent at room temperature.
Polycarbonate is commonly found in eye protection, in addition to other projectile-resistant viewing and lighting applications that would normally be thought of as requiring the use of glass, but require much higher impact-resistance. Many kinds of lenses are created from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety glasses for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are normally made out of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.

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