Lexan Polycarbonate Sheet are clear and tough

Polycarbonate plastic products have a balance of helpful features which include temp resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering materials.
Polycarbonate is a very tough material. Although it features exceptional impact-resistance, it's got reduced scratch-resistance and so a hard coating can be applied to polycarbonate eyeglasses and polycarbonate exterior auto equipment. The characteristics relating to polycarbonate are similar to that of 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 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 will have to be held at high temperatures, generally above 80 °C (176 °F) to produce strain- and almost stress free products.
Unlike many thermoplastics, polycarbonate can undergo large shape changes without cracking. For this reason, for small changes in shape, it can be processed and formed   at room temperature using standard sheet metal techniques, such as forming bends with a brake. Even for sharp angle bends having 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 can't be created from sheet metal. Understand that PMMA/Plexiglas, which is similar in appearance to polycarbonate, but it is brittle and cannot be bent at room temperature.
Polycarbonate is frequently found in eye protection, as well as in other projectile-resistant see through or lighting applications that would normally be thought of as requiring the use of glass, but require much higher 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 manufactured from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.


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