Bayer Makrolon Polycarbonate materials offer a great blend of helpful features this includes temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastic materials.
Polycarbonate is a very long-lasting material. Although it offers considerable impact-resistance, it possesses reduced scratch-resistance and thus a hard coating can be applied to polycarbonate eye wear as well as polycarbonate exterior automotive equipment. The properties of polycarbonate are generally similar to that of those of Acrylic PMMA materials, except 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 has better light transmission characteristics than several types of glass.
Polycarbonate has 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 should be held at higher temperatures, generally above 80 °C (176 °F) for making strain- and almost stress free products.
Unlike most other thermoplastics, polycarbonate can undergo dramatic deformations without cracking or breaking. For this reason, it is sometimes processed and formed at room temperature using standard sheet metal techniques, such as forming bends on a brake. For even sharp angle bends with a tight radius, no heating is generally necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are important, which can't be crafted from sheet metal. Remember that PMMA/Plexiglas, which is similar in looks to polycarbonate, but it is brittle and cannot be bent with out a heating process.
Polycarbonate is frequently utilized in eye protection, in addition to other projectile-resistant optical type applications that would normally be thought of as requiring the use of glass, but require much greater impact-resistance. Many different types of lenses are made of 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 manufactured from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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