Polycarbonate (PC), is a thermoplastic polyester and formally carbonic acid. The PC has high resistance, impact, rigidity and hardness. they are flammable, but flame goes out, however, after removing the ignition source. Polycarbonates are transparent and colorless, but they can also be colored. As a transparent plastic, it is often used as an alternative to glass, since there are comparable values ??of light transmittance. Compared to brittle glass, polycarbonate is lighter and significantly more resistant to impact. Polycarbonates are resistant to water, mineral acids, hydrocarbons and oils and fats.