3M™ Flame Resistant Loop Fastener SJ3518FR is one part of a two-part fastener solution designed to provide great durability for thousands of closures. With its flame resistant rubber-based pressure sensitive adhesive backing, this fastener allows for easy and convenient attachment to a variety of substrates, including plastics. - Flame resistant woven nylon is durable for thousands of closures. Loop fastener backed with a rubber based adhesive for bonding to a wider variety of materials.