J.V. Converting SJ3551/BLK110 3M Scotch SJ3551 Dual Lock 400 Reclosable Fastener: 1" x 10 ft, Black Pins: 400 per square inch Engaged thickness: 230 mils. Thickness: 140 mils (carrier, adhesive) 4 mils (liner) Adhesive: acrylic (300 lse). carrier/backing: polypropylene Service/operating temperature: up to 200F Release liner: clear polyolefin film