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3M™ Dual Lock™ Reclosable Fastener SJ3551 – Black, durable fastening for panels, graphics, vehicles, industrial and small components

Item Name: 3M™ Dual Lock™ Reclosable Fastener SJ3551
Manufacturer: 3M
Technologies: Interlocking mushroom-shaped heads, white acrylic conformable foam tape, general purpose acrylic adhesive
Color: Black / White
Cure Type: Pressure-sensitive adhesive (self-adhesive, no curing required)
Package Size: 1.0, 2.0, 4.0 Roll/Case
Shelf Life: Contact to Techniq VN for details

1. Product Overview
3M™ Dual Lock™ Reclosable Fastener SJ3551 is a black, high-strength fastener featuring interlocking mushroom-shaped heads at 400 stems per square inch. Integrated with white, acrylic, conformable foam tape, it offers durable, reclosable fastening for metals and plastics such as acrylics, polycarbonate, and ABS. This product provides a convenient alternative to screws, nuts, or bolts for both indoor and outdoor applications.

2. Applications
Designed for versatile use, it is suitable for access panels, graphic attachments, specialty vehicle interiors, general industrial assembly, small components, pillar trim panels, headliners, spare tire covers, trunk liners, and vinyl protective trims. The fastener allows easy positioning before engagement and ensures reliable, repeated attachment.

3. Typical Properties

Property Description
Product Type Reclosable fastener with interlocking mushroom heads
Color Black
Adhesive Color White
Adhesive Type General purpose acrylic adhesive
Stem Density 400 stems per square inch
Engaged Thickness 5.8 mm
Closure Life Up to 1000 open/close cycles
Maximum Operating Temperature 93 °C
Primary Liner Clear polyolefin, 0.1 mm thick
Form Roll
Units per Case 1, 2, or 4 rolls
Dimensions Available 12.7 mm – 152.4 mm width; 45.72 m length
Performance Features Strong, durable fastening with audible snap; heat, chemical, UV resistant
Recommended Industries Electronics, Military & Government, Packaging, General Industrial, Medical, Specialty Vehicle, Retail, Furniture, MRO, Transportation, Automotive, Construction, Appliance

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BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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