Scotch Box-Sealing Tape 372 features a resilient polypropylene backing that resists moisture, abrasion, chemicals and scuffing to hold strong throughout the shipping process. Professional-grade tape easily conforms around edges, sticks to rough surfaces and flexes under stress to maintain a strong, durable seal. Synthetic rubber adhesive adheres instantly to create lasting, durable carton closures. This heavy-duty sealing tape is ideal for use on single-wall and double-wall, regular slotted containers (RSC) weighing up to 100 lb. and heavyweight or overpacked cartons and packages for shipping and handling. High strength combined with its quick stick and resistance to splitting or tearing makes it popular for overseas and export shipping. This tape also complies with environmental considerations of ASTM D1974-92. Design includes a 3" core and tensile strength of 26 lb. per inch.