3M™ Dual Lock™ SJ3540 is a reclosable fastening system featuring interlocking mushroom-shaped stems that snap together to create a strong, secure, and hidden attachment solution.
It utilizes a rubber-based pressure sensitive adhesive designed for general purpose use and bonding to low surface energy substrates such as plastics and powder-coated surfaces.
With a medium stem density, SJ3540 provides a balanced combination of holding strength and disengagement force, making it ideal for applications requiring both reliability and accessibility.