Bayer Makrolon Polycarbonate materials have a balance of beneficial features including temp resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering plastic materials.
Polycarbonate is definitely a high quality material. Although it has extraordinary impact-resistance, it possesses minimal scratch-resistance and thus a hard coating can be applied to polycarbonate eye protection as well as polycarbonate exterior motor vehicle equipment. The properties of polycarbonate are generally similar those of polymethyl methacrylate (PMMA, acrylic), and yet polycarbonate is definitely 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 kinds of glass.
Polycarbonate carries a glass transition temperature near 150 °C (302 °F), in order that it softens slowly above this point and flows above about 300°C (572 °F). Tools are required to be held at high temperatures, generally above 80 °C (176 °F) for making strain- and almost stress free products.
Unlike many thermoplastics, polycarbonate can undergo dramatic shape changes without breaking or cracking. As a result, it may be processed and formed  cold using sheet metal techniques, which include forming bends on a brake. For even sharp angle bends with a tight radius, no heating is generally necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are required, which cannot be created from sheet metal. Keep in mind that PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but it's brittle and cannot be bent unless it is heated.
Polycarbonate is commonly found in eye protection, in addition to other projectile-resistant optical type applications that would normally indicate the use of glass, but require greater impact-resistance. Many kinds of lenses are manufactured from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety visors for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are commonly made up of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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