PVB interlayer film is translucent film,and it was formed by plasticfying and extrusion of polyvinyl butyral resin and plasticizer,The PVB film appearance is semitransparent film.its surface is flat and free of impurities,with certain roughness and softness.PVB film has the properties of safety,the sound insulation,the isolation ultraviolet ray,the instrument strength and so on to make it the best adhesive material in safety glass.PVB interlayer film can be widely used in building laminated glass,automobile laminated glass,solar photovoltaic glass,bulletproof glass and so on.