Scotch(R) Continuous Taping System Tape 3781 is a valued performance polypropylene film carton sealing tape. Scotch(R) Continuous Taping System Tape 3781 is a carton sealing tape that bonds instantly. Resists abrasion, moisture, chemicals, and scuffing. Offers good edge tear and split resistance. Allows for automatic splicing. Complies with ASTM D1974-92.