made of thin sheets of Polyvinyl Chloride(PVC) wrapping industrial pipes,ground and underground pipes,ducts For PET flex PVC DUCT TAPEPVC duct tape is made of thin sheets of Polyvinyl Chloride(PVC), as the backing material,coated with pressure-sensitive adhesive. It's suitable for wrapping industrial pipes,ground and underground pipes. It is resistant to moisture, corrosion, PH alterations,and ...