This high-strength PVC duct tape is a practical general-purpose tape for securing, wrapping and sealing light-duty ventilation joints and insulation. The flexible PVC backing conforms around round and rectangular duct surfaces, while the pressure-sensitive adhesive provides a quick bond to clean, dry substrates. It is useful for holding components during installation, reinforcing taped connections and completing minor repairs. For permanent airtight or structural joints, the tape should be used together with the appropriate mechanical connection, adhesive or sealant specified for the duct system.