High Performance Packaging Tape Scotch® Box Sealing Tape 373 is a 2.5 mil (64 micron) high performance polypropylene film packaging tape with a synthetic rubber adhesive that offers reliability even with the stresses of over or under packed boxes. It is specifically designed for flexibility and conformability under stress and is ideal for ecommerce and single parcel shipments. It is easy to unwind and dispense with manual dispensers or the 3M-Matic™ Case Sealers. This tape resists abrasion, moisture, chemicals and scuffing for long-lasting performance.