Sheffield Plastics Polycarbonate Flat Sheet offering light weight and break resistance

Polycarbonate plastic products give you a balance of beneficial features which include high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering materials.
Polycarbonate is a very tough material. Whilst it offers tremendous impact-resistance, it has got minimal scratch-resistance and thus a hard coating is often applied to polycarbonate eye protection lenses as well as polycarbonate exterior auto components. The characteristics relating to polycarbonate are generally similar to that of those of polymethyl methacrylate (PMMA, acrylic), 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 kinds of glass.
Polycarbonate has a glass transition temperature of about 150 °C (302 °F), so it softens slowly above this point and flows above about 300°C (572 °F). Tools will have to be held at high temperatures, generally above 80 °C (176 °F) for making strain- and stress-free products.
Unlike most thermoplastics, polycarbonate can undergo dramatic deformations without cracking or breaking. For this reason, it is sometimes processed and formed   without needing to be heated using sheet metal techniques, such as forming bends with a brake. Even for sharp angle bends having a tight radius, no heating is generally necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are needed, which may not be created from sheet metal. Note that PMMA/Plexiglas, which is similar in appearance to polycarbonate, but is brittle and cannot be bent with out a heating process.

The light weight of polycarbonate, in contrast to glass, has led to growth and development of electronic view screens that replace the traditional glass with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and many 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 in finer detail.
Other miscellaneous items manufactured 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 goods are made 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 as a coextrusion for enhanced weathering resistance.
The 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, these small pellets are heated until they melt in to a thick liquid. This liquid polycarbonate is then rapidly pushed into molds, compressed under high pressure and cooled to create a finished product in less than a minute.

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