1/2" x 72 Yd Clear Polyester Film Tape is Used for temporary holding credit cards to mailers, edge splicing & holding, and tape hinge. This Polyester Film Tape uses a Rubber Adhesive application. With a tensile strength of 34 lbs/in., 1.6 mil thick tape features 18 oz/in. of adhesion and an elongation of 120%. Polyester Film Tape can also withstand temperatures ranging from 32? - 176? Fahrenheit. This is a 1 mil transparent film with a natural rubber resin adhesive approved for indirect food contact.