Laminated glass consists of two or more panes of glass permanently bonded together with tough interlayer of Polyvinyl Butyral(PVB) or Resin under heat or pressure into a single piece. The glass panels may be of equal or different thickness and may be annealed, tempered or heat strengthened. The glass panes used may be of clear, tinted or reflective glasses and the resultant composite panel may be used as a monolithic lite or in conjunction with a double glazed insulated unit. This constitute the highest standards of safety glass and can be used for different safety requirements in various combinations. One of the most famous outcome of these type of process in Bullet proof glass.