Dual Lock hook-and-loop fastener

• Thanks to the snap-fit fastening, screws, nails, snap fasteners, or rivets are no longer required
• Five times the tensile strength compared to conventional hook-and-loop tapes
• Durability – Up to 1,000 open-close cycles before losing 50% of original tensile strength
• Excellent thermal resistance at temperatures up to 82 °C
• Black interlocking mushroom-shaped heads (40 heads per cm²)
• Moisture and UV resistant
• Dampens vibrations
• Suitable for indoor and outdoor use

The 3M™ Dual Lock™ Flexible Hook-and-Loop Fastener SJ3870 is made of black polypropylene with a modified acrylic adhesive on the back. Our product is suitable for a wide variety of indoor and outdoor applications. It is 6.1 mm thick when closed and offers a long service life.

The flexible 3M Dual Lock fastener consists of a polyolefin backing with small mushroom-shaped heads that form a stable, yet up to 1-time re-releasable bond when pressed together (audibly). Three mushroom head densities can be combined with each other, thereby generating different holding forces—depending on the need. The SJ387 product family, equipped with a high-performance modified acrylate adhesive, is suitable for bonding a wide range of materials, e.g., high- and low-energy plastics, metals, and many powder coatings.