Lexan Polycarbonate Flat Sheet are considered unbreakable

Makrolon Polycarbonate products give you a great blend of helpful features including high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering plastics.
Polycarbonate is definitely a sturdy material. Although it features higher impact-resistance, it has minimal scratch-resistance and thus a hard coating could be applied to polycarbonate eye protection lenses as well as polycarbonate exterior motor vehicle components. The characteristics associated with polycarbonate tend to be similar to that of those of polymethyl methacrylate (PMMA, acrylic), yet , polycarbonate is actually 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 most grades of glass.
Polycarbonate carries a glass transition temperature near 150 °C (302 °F), as a result it softens gradually above this point and flows above about 300°C (572 °F). Tools will have to be held at higher temperatures, generally above 80 °C (176 °F) to make strain- and stress-free products.
Unlike most thermoplastics, polycarbonate can undergo large changes in basic shape without breaking or cracking. Due to this fact, it can be processed and formed   at room temperature using sheet metal techniques, for example 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 important, which may not be made from sheet metal. Please keep in mind PMMA/Plexiglas, which is similar in looks to polycarbonate, but it is brittle and cannot be bent at room temperature.

The light weight of polycarbonate, in contrast to glass, has led to continuing development of electronic display screens that replace the traditional glass 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 still generally require glass for its higher melting temperature and the ability to be etched with finer detail.
Other miscellaneous items made out of Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, police riot shields, instrument panels, and 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 exposed to weathering or UV-radiation, a special surface treatment maybe needed. This either can be a coating (e.g. for improved abrasion resistance), or a coextrusion for enhanced weathering resistance.
Bayer Makrolon Polycarbonate is a thermoplastic that starts as a solid plastic material in the form of small pellets. In a manufacturing process called injection molding, this pellet material is heated until they melt and become a very thick liquid. The liquid polycarbonate is then rapidly injected into a mold, compressed under high pressure and cooled to produce a finished product in a matter of minutes.

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