3M Dual Lock SJ3550 Reclosable Fastening System

Black fastening system with mushroom-shaped stalks and a pressure-sensitive acrylic adhesive backing.

• Five times greater tensile strength than standard hook & loop fastening tapes.
• Opens and closes 1,000 times before losing 50% of tensile strength.
• Good adhesion to metals, glass, plastics, and high and medium surface energy coatings.
• Foam tape backing for better contact with textured or irregular surfaces.
• Features 40 mushroom-shaped stalks/cm² with an active thickness of 5.7 mm.
• Operates in temperatures from -30° C to 70° C (short-term performance +95° C).
• Suitable for indoor and outdoor use.

The acrylic adhesive provides good bonding to various materials, allowing for the connection of access doors, panels, and other components. The fastening system allows easy and repeatable access while maintaining adhesion over time.