3M Scotchmate reclosable fasteners offer advanced closure alternatives to zippers, screws, snaps, hooks and more. They offer greater design flexibility, faster product assembly, smoother and cleaner exterior surfaces and improved product performance in many applications. The Scotchmate hook and loop fasteners consist of two strips of polyester fabric which engage to form a quick fastening attachment. Simply pull the strips apart by hand to disengage. - Premium performance PSA polyester loop reclosable fastener with acrylic tape and clear polyethylene film liner 100 - 150 Mil engaged thickness, black. This polyester product is coated with a high performance acrylic adhesive. High temperature performance.