Permanent bag sealing tapes have strong adhesive, Thus tearing off the tape will cause damage to the bag. This tape is suitable for non-reusable plastic bags, express delivery bag, confidential bag, the garbage bag, the pet decoration bag and all kinds of plastic bags made of opp, pp or pe materials. Construction Backing: silicone coated pearlized polypropylene film ( pepa )+ class Liner films ( pet ) Adhesive:double side hotmelt Colors: white, printing Standard sizes Width: 8mm, 11mm, 12mm, 14mm, 15mm, 17mm, 18mm, 20mm, 25mm Length: 500m, 1000m, 5000m, 8000m, 10000m Core id: 76.2mm, 152.4mm Physical properties Mylar width: 4mm, 7mm, 9mm, 11mm, 12mm, 14mm Glue width: 3/3mm, 6/6mm, 8/8mm, 10/10mm, 13/13mm Pepa thickness: 70mic Pet mylar thickness:40mic Shelf lift(month): 12 months Packing 10rolls/box, one roll/box Attention: this sealing tape is not suitable for textile bag's sealing, for it would probably change the textile's color somewhat the special adhesive ingredient and the dye material reaction for certain condition. 12mm*6mm*500m 10rolls/box