Sheffield Plastics Polycarbonate Flat Sheet are considered unbreakable

Polycarbonate plastic products have a great blend of useful features including high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering materials.
Polycarbonate is definitely a tough material. Though it has considerable impact-resistance, it has got reduced scratch-resistance and thus a hard coating could be applied to polycarbonate eyewear lenses as well as polycarbonate exterior auto components. The characteristics of polycarbonate tend to be similar to that of those of polymethyl methacrylate (PMMA, acrylic), except 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 it has better light transmission characteristics than most grades of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), consequently it softens gradually 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 help with making strain- and almost stress free products.
Unlike many thermoplastics, polycarbonate can undergo dramatic changes in basic shape without breaking. Therefore, for small changes in shape, it can be processed and formed   cold using sheet metal techniques, for example forming bends with a brake. For even sharp angle bends with a tight radius, no heating is generally necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are crucial, which should not be created from sheet metal. Understand that PMMA/Plexiglas, which is similar in looks to polycarbonate, but it's brittle and can't be bent without heating.

The light weight of polycarbonate, as opposed to glass, has led to growth and development of electronic view screens that replace glass materials with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and some LCD screens, though CRT, plasma screen and other LCD technologies still generally require glass for its higher melting temperature and its ability to be etched with finer detail.
Other miscellaneous items produced from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, police riot shields, instrument panels, and common style blender jars. Many toys and hobby items are made out of 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 could be 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 begins as a solid material in the form of small pellets. In a manufacturing process called injection molding, these small pellets are heated until they begin to melt. The melted liquid polycarbonate is then rapidly injected into a mold, compressed under high pressure and cooled to create a finished product in a matter of minutes.

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