3M™ Dual Lock™ Reclosable fastener SJ3560 has a clear acrylic adhesive on the back of a clear polypropylene reclosable fastener with 250 stems per square inch and 0.23 inch engaged thickness and a closure life of 1000 times.Highest temperature performance of up 220°F and can be used indoors and outdoors. For use with metals (aluminium, stainless steel), glass and high surface energy plastics (acrylic, polycarbonate, ABS).