Automotive PVB Film Other Name: Polyvinyl butyral film, PVB interlayer CAS: 63148-65-2 Packing: Inner packing: Every layer of PVB film rolls is separated by PE film and vacuumed by aluminum foil. Outer packing: Wooden or Carton box with product information. Application: Producing Laminated glass or interlayer glass for architecture, automotive and