Lexan Polycarbonate Sheeting offering light weight and break resistance
Makrolon Polycarbonate materials have a balance of useful features this includes high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering plastic materials.
Polycarbonate is a very high quality material. Whilst it offers considerable impact-resistance, it's got minimal scratch-resistance and thus a hard coating can be applied to polycarbonate eye protection and polycarbonate exterior vehicle components. The properties of polycarbonate are generally along the lines of those of polymethyl methacrylate (PMMA, acrylic), except 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 most grades of glass.
Polycarbonate carries a glass transition temperature of around 150 °C (302 °F), so it softens slowly above this point and flows above about 300°C (572 °F). Tools need to be held at high temperatures, generally above 80 °C (176 °F) to produce strain- and almost stress free products.
Unlike almost all other thermoplastics, polycarbonate can undergo massive shape changes without breaking. Because of this, for small changes in shape, it can be processed and formed at room temperature using standard sheet metal techniques, for instance forming bends on a brake. For even sharp angle bends having a tight radius, no heating is generally necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are needed, which should not be created from sheet metal. Understand that PMMA/Plexiglas, which is similar in appearance to polycarbonate, but is brittle and cannot be bent unless it is heated.
Polycarbonate is commonly utilized in eye protection, as well as in other projectile-resistant optical type applications that would normally require the use of glass, but require much greater impact-resistance. Many kinds of lenses are produced from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety goggles for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are normally made out of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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