types of ceramics can also be used for transparent armor due to their properties of increased density and hardness when compared to traditional glass. These types of synthetic ceramic transparent armors can allow for thinner armor with equivalent stopping power to traditional laminated glass. Air chamber glass The newest type of curved transparent vehicle armor has an air chamber between the glass and the polycarbonate. Level IIIA (high speed 9 mm) armor consists 8 mm of laminated glass (strike face), a 1 mm air gap, and 7 mm of polycarbonate. This solution stops the bullets in a totally different way. The glass, being hard, deforms the incoming bullet. The deformed bullet completely penetrates the glass and then it is stopped by the flexible polycarbonate. The weight reduction over traditional glass-clad polycarbonate is 35%, weighing .25 kilos per square meter for level NIJ 06 IIIA (NIJ 07 HG2). It is also thinner (16.2 mm) vs conventional Glass Clad Polycarbonate (21 mm). See also Transparent Armor Gun Shield Prince Rupert's Drop References Glass coating and surface modification Armour