The 3M™ Flame Resistant Hook Fastener SJ3419FR is one part of a two-part fastener solution designed to provide great durability for thousands of closures. The flame-resistant, non-adhesive fastener is most commonly sewn, but can be attached with a variety of hot melt or liquid adhesives. This fastener allows for easy and convenient attachment to a variety of substrates.
The 3M™ Flame Resistant Hook Fastener SJ3419FR is a flame resistant fastener with no adhesive or liner. It is an attachment alternative to a wide variety of closures, including zippers, screws, snaps, hooks, and more. This fastener is covered with flexible J shaped hooks, about 300 hooks per square inch (46 hooks/square cm), which protrude up from a woven backing. This fastener should be paired with 3M™ Flame Resistant Loop Fastener SJ3418FR. To ensure stability and flatness, both the hook and the corresponding loop are preshrunk.