Sheffield Plastics Polycarbonate Flat Sheet are clear and tough

Makrolon Polycarbonate materials offer a unique balance of useful features this includes temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering plastics.
Polycarbonate is definitely a rugged material. Though it offers higher impact-resistance, it possesses minimal scratch-resistance and thus a hard coating can be applied to polycarbonate eye protection as well as polycarbonate exterior automobile equipment. The properties of polycarbonate are generally similar to that of those of polymethyl methacrylate (PMMA, acrylic), although 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 it has better light transmission characteristics than several types of glass.
Polycarbonate carries a glass transition temperature of around 150 °C (302 °F), therefore it softens slowly above this point and flows above about 300°C (572 °F). Tools ought to be held at high temperatures, generally above 80 °C (176 °F) in order to make strain- and stress-free products.
Unlike most other thermoplastics, polycarbonate can undergo large changes in basic shape without breaking. For this reason, it is sometimes processed and formed   without needing to be heated using standard sheet metal techniques, for example forming bends with a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are crucial, which can't be made from sheet metal. Keep in mind that PMMA/Plexiglas, that is similar in appearance to polycarbonate, but it's brittle and cannot be bent with out a heating process.

The light weight of polycarbonate, in contrast to glass, has led to advancement of electronic display screens that replace glass materials with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and a few LCD screens, though CRT, plasma screen and other LCD technologies generally still require glass for its higher melting temperature and the ability to be etched in finer detail.
Other kinds of items made from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, police riot shields, instrument panels, and blender jars. Many toys and hobby products are constructed from polycarbonate parts, e.g. fins, gyro mounts, and flybar locks for use with radio-controlled helicopters.
For use in applications exposed to weathering or UV-radiation, a special surface treatment is needed. This either can be a coating (e.g. for improved abrasion resistance), or as a coextrusion for enhanced weathering resistance.
The Makrolon Polycarbonate is a thermoplastic that at the beginning, starts as a solid material in the form of small pellets. In a manufacturing process called injection molding, these small pellets are heated until they melt. The liquid polycarbonate is then rapidly pushed into the mold - shaped like the part, compressed under high pressure and cooled to produce a finished product in less than a minute.

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