Sheffield Plastics Polycarbonate Sheets are clear and tough
Polycarbonate plastic materials offer a unique balance of useful features which include temp resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
Polycarbonate is definitely a long-lasting material. Whilst it features greater impact-resistance, it possesses low scratch-resistance and so a hard coating can be applied to polycarbonate eyeglasses and polycarbonate exterior motor vehicle equipment. The characteristics relating to polycarbonate tend to be similar those of Acrylic PMMA materials, but polycarbonate is going to be 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 different types of glass.
Polycarbonate carries a glass transition temperature of approximately 150 °C (302 °F), therefore it softens slowly above this point and flows above about 300°C (572 °F). Tools need to be held at warm to high temperatures, generally above 80 °C (176 °F) to help with making strain- and stress-free products.
Unlike many thermoplastics, polycarbonate can undergo large deformations without breaking or cracking. As a result, it can be processed and formed cold using standard sheet metal techniques, which include forming bends with a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are important, which can't be produced from sheet metal. Please keep in mind PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but it's brittle and can't be bent with out a heating process.
Polycarbonate is commonly used in eye protection, as well as in other projectile-resistant see through applications that would normally require the use of glass, but require greater impact-resistance. Several types of lenses are made of 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 from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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