Dual Lock™ Reclosable Fastener SJ3540

3M™ Dual Lock™ Reclosable Fastener SJ3540 has a rubber based adhesive on the back of a black, polypropylene reclosable fastner. 3M™ Dual Lock™ Reclosable Fastener SJ3540 has a 250 stems per square inch with a 0.23 inch engaged thickness. The closure life is 1,000 times.

• A black fastener with mushroom shaped stems that is backed with a rubber based pressure sensitive adhesive.
• Type 250 stem density polyolefin fastener which mates to Type 170, 250 or 400.
• Designed to bond to many plastics, powder coated paints and other low surface energy materials.