Scotch® Box Sealing Tape 373 features a biaxially oriented polypropylene backing with pressure-sensitive rubber resin adhesive. It complies with environmental considerations of ASTM D1974-92 and meets CID A-A-1684B. This tape is suitable for use on large cartons weighing up to 100 lbs., shipped individually. Heavy duty sealing tape, also known as packing tape or adhesive tape, is designed to securely seal heavy-weight or over-packed cartons and packages for shipping and handling. The tape’s high strength combined with its quick stick and resistance to splitting or tearing makes it popular for overseas and export shipping.