2" x 1000 Yd Black 2 mil Polypropylene Box Sealing Tape with Acrylic Adhesive is Used for box sealing. This 2 mil Polypropylene Box Sealing Tape with Acrylic Adhesive uses an Acrylic Adhesive application. With a tensile strength of 20 lbs/in., 2 mil thick tape features 20 oz/in. of adhesion and an elongation of 160%. 2 mil Polypropylene Box Sealing Tape with Acrylic Adhesive can also withstand temperatures ranging from -40? - 150? Fahrenheit.