Bayer Makrolon Polycarbonate materials offer a unique balance of useful features this includes high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering plastic materials.
Polycarbonate is definitely a long-lasting material. Whilst it features very high impact-resistance, it possesses reduced scratch-resistance and thus a hard coating typically is applied to polycarbonate eye wear lenses as well as polycarbonate exterior auto equipment. The characteristics associated with polycarbonate are like those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate definitely is 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), in order that it softens gradually above this point and flows above about 300°C (572 °F). Tools are required to be held at warm to high temperatures, generally above 80 °C (176 °F) to produce strain- and almost stress free products.
Unlike many thermoplastics, polycarbonate can undergo dramatic deformations without breaking or cracking. For this reason, for small changes in shape, it can be processed and formed  at room temperature using standard sheet metal techniques, which include forming bends with a brake. For even 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 required, which cannot be made from sheet metal. Understand that PMMA/Plexiglas, that is similar in appearance to polycarbonate, but it is brittle and can't be bent without heating.
The light weight of polycarbonate, unlike glass, has led to continuing development 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 which still do require glass for its higher melting temperature and its ability to be etched with finer detail.
Other kinds of items made out of Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, riot shields, instrument panels, and blender jars. Many toys and hobby items 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 either can be a coating (e.g. for improved abrasion resistance), or perhaps the coextrusion for enhanced weathering resistance.
Bayer Makrolon Polycarbonate is a thermoplastic that at the beginning, 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. The liquid polycarbonate is then rapidly injected into molds, compressed under high pressure and cooled to form a finished product in a matter of minutes.
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