SJ3541

The 3M Dual Lock Reclosable Fastener SJ3541 is designed for a variety of fastening applications where a hidden, positive attachment is needed. It features continuous strips of polyolefin stems with mushroom-shaped heads that interlock when pressed together, creating a reliable and strong bond.

This fastener is available in several stem densities, including 170, 250, 400, and 705 stems per square inch. By combining different densities, users can achieve the desired engagement strength for their specific application. For example, mating type 170 to type 250, type 170 to type 400, type 250 to type 250, and type 250 to type 400 are recommended combinations for increasing closure strength. The low-profile version has a density of approximately 705 stems per square inch and is designed to mate with itself.

The SJ3541 features a self-adhesive backing for easy application. Simply remove the liner, position the fastener, and apply firm, consistent pressure to ensure good contact with the substrate. This pressure-sensitive adhesive makes the Dual Lock fastener user-friendly, allowing for quick and secure attachment without the need for mechanical fasteners or solvents.

Key features include easy alignment, as the stems slide into position in any direction, and positive locking with an audible snap and detectable movement, ensuring a complete and secure closure. The reclosable nature allows for multiple open and close cycles, providing a high cycle life for repeated use.