Makrolon Polycarbonate products have a unique balance of helpful features which include high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering materials.
Polycarbonate is a very durable material. Whilst it offers greater impact-resistance, it has got reduced scratch-resistance and so a hard coating could be applied to polycarbonate eye protection and polycarbonate exterior auto equipment. The characteristics associated with polycarbonate are comparable to those of polymethyl methacrylate (PMMA, acrylic), and yet 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 many kinds of glass.
Polycarbonate carries a glass transition temperature near 150 °C (302 °F), therefore it softens gradually above this point and flows above about 300°C (572 °F). Tools must be held at high temperatures, generally above 80 °C (176 °F) to make strain- and stress-free products.
Unlike many thermoplastics, polycarbonate can undergo dramatic changes in basic shape without cracking. For this reason, it is sometimes processed and formed cold using standard sheet metal techniques, for example forming bends with a brake. For even sharp angle bends having a tight radius, no heating is usually necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are needed, which cannot be produced from sheet metal. Please keep in mind PMMA/Plexiglas, which happens to be similar in looks to polycarbonate, but it's brittle and cannot be bent without heating.
Polycarbonate is commonly used in eye protection, in addition to other projectile-resistant optical type applications that would normally indicate the use of glass, but require greater impact-resistance. Many different types of lenses are produced 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 normally constructed from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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