3M™ Dual Lock™ Reclosable Fastener SJ3550 is a general purpose acrylic adhesive on the back of a black, polypropylene reclosable fastner. 3M™ Dual Lock™ Reclosable Fastener SJ3550 has 250 stems per square inch with an 0.23 inch engaged thickness. Offers a closure life of 1,000.
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