3M™ Preservation Sealing Tape 481, Black, 4 in x 36 yd, 9.5 mil, 8 Roll/Case. 3M™ Preservation Sealing Tape 481 is a black, polyethylene tape with a unique rubber adhesive. With excellent stain resistance and weatherability, this tape helps preserve, seal and protect equipment and vehicles for long-term storage applications in a variety of weather conditions. This tape provides excellent performance as an industrial and military preservation tape.