Bayer Makrolon Polycarbonate Sheeting offering light weight and break resistance

Polycarbonate products have a great blend of beneficial features which include high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering plastics.
Polycarbonate is a very durable material. Even though it offers considerable impact-resistance, it possesses a lower scratch-resistance and thus a hard coating can be applied to polycarbonate eye wear lenses as well as polycarbonate exterior automotive components. The characteristics associated with polycarbonate are generally comparable to those of polymethyl methacrylate (PMMA, acrylic), and yet polycarbonate is undoubtedly 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 many different types of glass.
Polycarbonate carries a glass transition temperature of around 150 °C (302 °F), so it softens slowly above this point and flows above about 300°C (572 °F). Tools will have to be held at warm to high temperatures, generally above 80 °C (176 °F) to produce strain- and reduced stress products.
Unlike almost all other thermoplastics, polycarbonate can undergo dramatic deformations without cracking. For that reason, for small changes in shape, it can be processed and formed   at room temperature using sheet metal techniques, which include forming bends with a brake. Even for sharp angle bends having a tight radius, no heating is usually necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are important, which should not be made from sheet metal. Note that PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but it's brittle and can't be bent unless it is heated.
Polycarbonate is commonly used in eye protection, in addition to other projectile-resistant see through 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 typically made of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.

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