Sheffield Plastics Polycarbonate Sheeting are considered unbreakable
Bayer Makrolon Polycarbonate products have a unique balance of useful features which include high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering materials.
Polycarbonate is a very tough material. Although it features exceptional impact-resistance, it possesses reduced scratch-resistance and so a hard coating can be applied to polycarbonate eyewear and polycarbonate exterior automotive components. The properties associated with polycarbonate are generally similar to those of common Acrylic materials, and yet polycarbonate is undoubtedly 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 near 150 °C (302 °F), consequently it softens slowly above this point and flows above about 300°C (572 °F). Tools ought to be held at high temperatures, generally above 80 °C (176 °F) for making strain- and reduced stress products.
Unlike many thermoplastics, polycarbonate can undergo large shape changes without cracking. For that reason, for small changes in shape, it can be processed and formed without needing to be heated using sheet metal techniques, such as forming bends with a brake. For even sharp angle bends having a tight radius, no heating is usually necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are essential, which should not be made from sheet metal. Be aware that PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but is brittle and cannot be bent at room temperature.
The light weight of polycarbonate, as opposed to 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 some LCD screens, though CRT, plasma screen and other LCD technologies which still require glass for its higher melting temperature and its ability to be etched in finer detail.
Other miscellaneous items created from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, police riot shields, instrument panels, and 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 could be needed. This may 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 material in the form of small pellets. In a manufacturing process called injection molding, the pellets are heated until they begin to melt. The 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 produce a finished product , all in just a minute or so.
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