Shurtape PC-618 Industrial Grade Duct Tape is a performance grade duct tape which is available in a wide variety of colors. It is used to seal cartons, repair seats, bundle wires, color code, hold, secure, package, mask, splice, repair, and seal hatch covers and cargo doors in the HVAC, industrial, commercial, utilities, shipping, trucking and automotive industries. 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