Shurtape PC-618 Industrial Grade Duct Tape is a light industrial-grade duct tape which is available in a wide variety of colors. It is used to seal cartons, bind books, repair seats, bundle wires, color code, splice, repair, and seal hatch covers and cargo doors in the shipping/trucking industry. Shurtape PC-618 Duct Tape can also be used as a condensation barrier in appliance assemblies and for HVAC metal and flex duct sealing. It has a waterproof backing; has excellent conformability and tack; is easy to unwind and tear; and has excellent holding power. UL 723 listed.