Scotch Box-Sealing Tape 373 is a polypropylene, carton-sealing tape with a strong backing. It conforms around edges and on rough surfaces for a tight seal. Moisture-resistant polypropylene backing resists abrasion, chemicals and scuffing to hold strong throughout the shipping process. High-performance adhesive provides a secure, durable closure on large cartons weighing up to 100 lb. Carton-sealing design provides high-quality, consistent performance with easy unwind. Tape with 3" core is recommended for general industrial, food, beverage, medical pharmaceutical, paper, print, electronics and distribution centers. Tensile strength is 30 lb. per inch.