Sheffield Plastics Polycarbonate Flat Sheet are considered unbreakable

Polycarbonate plastic products offer a great blend of useful features this includes high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
Polycarbonate is definitely a rugged material. Although it offers extraordinary impact-resistance, it's got lower scratch-resistance and thus a hard coating can be applied to polycarbonate eyeglasses as well as polycarbonate exterior auto equipment. The characteristics of polycarbonate tend to be similar to that of those of Acrylic PMMA materials, except 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 it has better light transmission characteristics than several types of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), so it softens gradually above this point and flows above about 300°C (572 °F). Tools are required to be held at higher temperatures, generally above 80 °C (176 °F) to help make strain- and stress-free products.
Unlike most thermoplastics, polycarbonate can undergo large changes in basic shape without cracking. Because of that, for small changes in shape, it can be processed and formed   at room temperature using standard sheet metal techniques, for instance forming bends with a brake. For even sharp angle bends having a tight radius, no heating is generally necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are necessary, which should not be made from sheet metal. Be aware that PMMA/Plexiglas, that is similar in appearance to polycarbonate, but it is brittle and can't be bent at room temperature.

The light weight of polycarbonate, in contrast to glass, has led to development of electronic display screens that replace glass materials with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink as well as LCD screens, though CRT, plasma screen and other LCD technologies which still do require glass for its higher melting temperature and the ability to be etched with finer detail.
Other miscellaneous items produced from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, riot shields, instrument panels, and blender jars. Many toys and hobby goods are produced from polycarbonate parts, e.g. fins, gyro mounts, and flybar locks for use with radio-controlled helicopters.
For use in applications subjected to weathering or UV-radiation, a special surface treatment is needed. This may be a coating (e.g. for improved abrasion resistance), or perhaps the coextrusion for enhanced weathering resistance.
The Makrolon Polycarbonate is a thermoplastic that starts as a solid material in the form of small pellets. In a manufacturing process called injection molding, the pelletized resin is heated until they begin to melt. This liquid polycarbonate is then rapidly injected into a mold with the empty part being the size and shape of the part you want, compressed under high pressure and cooled to create a finished product in less than a minute.

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