Covestro Makrolon Polycarbonate Flat Sheet are clear and tough

Polycarbonate plastic materials offer a unique balance of beneficial features including temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastic materials.
Polycarbonate is a very sturdy material. Even though it has very high impact-resistance, it possesses lower scratch-resistance and so a hard coating is often applied to polycarbonate eyewear as well as polycarbonate exterior automotive components. The properties associated with polycarbonate are generally comparable to those of common Acrylic materials, but polycarbonate is actually 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 has better light transmission characteristics than many different types of glass.
Polycarbonate carries a glass transition temperature of around 150 °C (302 °F), in order that it softens slowly above this point and flows above about 300°C (572 °F). Tools ought to be held at higher temperatures, generally above 80 °C (176 °F) to help with making strain- and stress-free products.
Unlike most other thermoplastics, polycarbonate can undergo massive changes in basic shape without cracking. For this reason, for small changes in shape, it can be processed and formed   cold using sheet metal techniques, for example forming bends on a brake. For even sharp angle bends with a tight radius, no heating is generally necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are essential, which can't be made from sheet metal. Keep in mind that PMMA/Plexiglas, that is certainly similar in looks to polycarbonate, but is brittle and cannot be bent with out a heating process.
Polycarbonate is frequently used in eye protection, and also in other projectile-resistant viewing and lighting applications that would normally be thought of as requiring the use of glass, but require higher impact-resistance. Several types of lenses are created from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety goggles for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are typically manufactured from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.

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