This is glass made by inserting a transparent yet highly adhesive polyvinyl butyral film between two sheets of glass, completely removing the air between the sheets, and then raising the temperature and pressure to make them adhere perfectly.
It is a safe glass with a low breakage rate and prevents scattering of glass fragments even if broken. It also prevents theft and blocks approximately 99% of UV rays.
A variety of colors can be achieved depending on the color of the film used. (transparent, green, bronze, blue)
This is laminated glass that has excellent sound insulation performance by inserting a special laminated film between two sheets of glass.
Compared to single-pane or double-layer glass of the same thickness, it can block approximately 3 to 6 dB more (more than 7 dB in some frequency ranges).