Bayer Makrolon Polycarbonate products have a unique balance of beneficial features which include high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering plastic materials.
Polycarbonate is a very long-lasting material. Though it offers significant impact-resistance, it has reduced scratch-resistance and so a hard coating typically is applied to polycarbonate eyewear lenses and polycarbonate exterior vehicle equipment. The properties relating to polycarbonate are along the lines of those of common Acrylic materials, except 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 most grades of glass.
Polycarbonate has a glass transition temperature of about 150 °C (302 °F), in order that it softens gradually 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 thermoplastics, polycarbonate can undergo massive deformations without breaking. Hence, it may be processed and formed without needing to be heated using sheet metal techniques, for example forming bends on a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are required, which may not be made from sheet metal. Remember that PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but is brittle and can't be bent with out a heating process.
Polycarbonate is often found in eye protection, along with other projectile-resistant optical type applications that would normally indicate the use of glass, but require greater 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 commonly made from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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