... paper ,adhesive release paper KT Foam BoardIntroduction: Oursign Polystyrene foam board/KT board is an extruded polystyrene foam board bonded between two sheets ... , water proof, moisture proof, good heat preservation, sound insulation and so on. The boards have PS surface, paper surface, adhesive release paper ... : polybag, carton . Special Color, size, thickness can be specified. KT Foam Board