Polycarbonate products give you a great blend of useful features this includes high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering plastics.
Polycarbonate is a very sturdy material. Though it has tremendous impact-resistance, it possesses low scratch-resistance and thus a hard coating can be applied to polycarbonate eye wear lenses and polycarbonate exterior automobile equipment. The characteristics relating to polycarbonate are generally similar to those of Acrylic PMMA materials, although 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 has better light transmission characteristics than several types of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), therefore it softens gradually above this point and flows above about 300°C (572 °F). Tools must be held at higher temperatures, generally above 80 °C (176 °F) to help make strain- and almost stress free products.
Unlike most other thermoplastics, polycarbonate can undergo large deformations without breaking. Because of that, for small changes in shape, it can be processed and formed cold using sheet metal techniques, such as forming bends on a brake. For even 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 needed, which cannot be produced from sheet metal. Keep in mind that PMMA/Plexiglas, that is similar in looks to polycarbonate, but it is brittle and can't be bent with out a heating process.
Polycarbonate is often utilized in eye protection, along with other projectile-resistant see through applications that would normally indicate the use of glass, but require much higher impact-resistance. Many different types of lenses are created 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 produced from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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