2.1 mil medium grade acrylic CST Biaxially-oriented polypropylene (BOPP) film coated with high grade pressure-sensitive emulsion acrylic adhesive. Best suited for reliable, all-temperature box sealing performance where resistance to aging, weathering, UV light, and yellowing are important. Provides excellent clarity, high shear strength to prevent "flagging", superior quick-stick performance, and controlled unwind to facilitate dispensing on manual or automatic case sealing machines. Tensile strength (lbf/in width): 26. Elongation (% at break): 85. Adhesion to steel (oz/in): 20. Total thickness: 2.1 mils.