This tape is mainly used for sealing PVC heat shrink film. Product Overview This blue PVC cloth seaming tape is a single sided tape developed for the closing step of battery pack assembly: sealing the outer edges and seams of the pack after the insulation film, mylar sheet or PVC sleeve has been wrapped. The carrier is a double thread woven cloth laminated with a PVC film surface, at a total thickness of 180um, so the tape gives a clean printed panel on the outside and