Permanent bag sealing tapet is suitable for sealing all kinds of courier bag, express bag,mailing bag,and PE plastic bags for security purpose and permanent sealing. Once the bag is sealed by this kind of tape, the bag can not be opened unless people break the bag. DHL, UPS, Fed company all use this kind of tape to seal their courier express bag.
It is generally made up of four parts:Release liner: Pearlized film, Mylar PET (Polyester),Hot-melt adhesive (closed side adhesive layer) Solvent-based acrylic adhesive (open side adhesive layer).