Depending on the required strength, laminated glass is composed of two or more layers of glass and PVB up to 5.2 x 5 m and is pressed with a pressure of 13 bar at 150 اد C. This type of glass has the highest safety against impact and reduces it. 30 to 40 percent of the sound is transmitted. Bending laminate glass with a radius of 0.5 m and dimensions of 2.8 x 2.4 m is used in the facades of buildings, libraries, swimming pools and so on. Also, in contrast to the ultraviolet rays of the sun, the insulation was very suitable and reduces the passage of this radiation by 99%. By using colored PVB in this structure, the amount of sunlight can be controlled as desired and also a variety of color spectrum can be obtained. It should be noted that Securite glass can be used as one or more layers of laminated glass.