Product description Permanent bag sealing tape Application(permanent seal): Normal plastic mailing bags Carboard envelopes Bubble pouches Poly mailing bags Poly envelopes Self seal envelopes Security bags Paper mailers Bubble padded bags Jiffy bags Bubble mailers Bubble bag How to use? Used on machine to seal bags automatic Specification: Hot melt adhesive for permanent seal 500m per roll . 12mm film, 6/10mm hot melt glue/acrylic glue White color film Features: Destory the mailing bag film when open it after closing in few minites Thin film, easy for machine cutting Four parts structure: release film, pet middle material, double sided adhesive Special part left for easy tearing No degum, no residue Advantages: Direct contact from factory to customers, no resellers, origin factory price Flexible minimum order quantity, hundred cartons or container Offer custom changed size Release liner: 12mm pepa Carrier: 10mm pet A/b side glue:6/10mm hotmelt glue /oil acrylic glue 500m/roll x 10rolls/ctn