Product Description AC50 DUCTape is a 14 mil premium grade duct tape designed to perform best when a significant level of tensile and tear strength are required. Excellent moisture barrier. Meets ASTM D5486 Type 1. From the Manufacturer IPG manufactures a broad range of packaging products and systems that reflect the needs of both its industrial and retail customers. These include: pressure sensitive and water-activated, carton-sealing, masking, filament, flatback, cloth/duct, double-coated, high performance specialty, electrical, automotive, and HVAC tapes. Additional products include shrink film and stretch film as well as carton-sealing equipment, ink jet printing systems and labeling systems.