PVB interlayer film is a translucent film. PVB interlayer film is mainly used for laminated glass. It is a special glass made by sandwiching a layer of PVB film between two pieces of glass, compounding it under high pressure and heating it. PVB laminated glass is widely used in construction, automobile, photovoltaic and other industries due to its multiple functions such as safety, heat preservation, noise control and ultraviolet isolation. PVB interlayer films produced with special formulas are also widely used in aerospace, military and high-tech industries, such as aircraft, aerospace products, military instruments, solar cells and solar receivers.

PVB interlayer is a translucent film, a polymer material made of polyvinyl butyral resin plasticized and extruded with a plasticizer. The appearance is a translucent film with no impurities, a smooth surface, a certain roughness and good softness, good adhesion to inorganic glass, transparency, heat resistance, cold resistance, moisture resistance, and high mechanical strength. It is It is currently the best adhesive material in the world for manufacturing laminated and safety glass. It is also widely used in construction fields such as building curtain walls, tents, showcases, bank counters, prison viewing windows, steel furnace screens and various bulletproof glass.