Bulletproof glass is a composite material specially processed from glass (or plexiglass) and high-quality engineering plastics. It is usually a transparent material, such as PVB/polycarbonate thermoplastic (generally lexan resin) Also called LEXAN PC RESIN). It has the appearance of ordinary glass and the act of transmitting light, which provides certain protection for the shooting of small arms. The thickest pc board can be 136 mm thick with a maximum width of 2166 mm wide and an effective time of 6664 days.
The glass successfully developed by Mitsubishi Electric Instrument Laboratory of Japan is made by mixing boric acid glass powder and carbonized fiber and heating it to 1000 degrees Celsius. It is made of hard alloy reinforced glass, its maximum breaking stress is more than 2 times that of ordinary glass, no brittle weakness, nails and wood screws, no need to worry about breaking.
The non-reflective glass developed by SCHOTT Glass, Germany, has a light reflectance of only 1% (typically 8% for glass), thus solving the problem of glass reflection and dazzling headache.