Scotch Box-Sealing Tape 371 securely closes a wide variety of box and carton materials, including corrugated fiberboard. Moisture-resistant polypropylene backing resists abrasion, chemicals and scuffing to hold strong throughout the shipping process. It easily conforms around edges and on rough surfaces to provide a lasting hold with hot-melt, synthetic rubber resin adhesive. Design also includes a 3" core and tensile strength of 22 lb. per inch.