Fabricators of Adhesive Tapes & Flexible Materials

3M ™ Dual Lock ™ Dual Lock Reclosable Fasteners, Series includes SJ3550 (Stem Density 250) SJ3551 (Stem Density 400) and SJ3552 (Stem Density 170) referring to the approximate number of stems per square inch. Dual Lock is composed of a polypropylene material with high performance acrylic VHB adhesive that is plasticizer resistant.

Available in different widths and a fabricated functional splice.

Unit of Measure


N/A 3M™

Brand Part Number

N/A 3M™ SJ3550 / SJ3551 / SJ3552

Primary Application

N/A Damping Packaging Reclosable Fastening

Application Description

  • Replace conventional mechanical fasteners in a wide range of assembly and attachment applications where reclosability is desired.
  • Examples include attaching window and door trim panels, interior trim, cabinet enclosures.
  • attaching accessories and equipment.
  • Point of Purchase displays and signs.
  • Vibration and sound dampening control.


  • High performance adhesive
  • Solvent, plasticizer, flammability and water resistant
  • Firm adhesive bond to a wide variety of surfaces including glass, sealed wood, bare metal and plastics

Markets Served

N/A Displays Electrical Electronics Graphics Manufacturing


N/A Polypropylene Fasteners

Adhesive Type

N/A Acrylic VHB

Release Liner

N/A Clear Thick Silicone Treated Polyolefin


N/A Black

Service/Operating Temperature

N/A -20 to 200 ºF

N/A The physical properties listed are typical values based on PSTC, ASTM and other standard tests. This data should be used as guides only, and not as specification limits. Our recommendations for use are based on practical experience and testing. However, it is the responsibility of the user to determine the suitability of the product for his intended use. MBK Tape Solutions will not assume liability for claims beyond the replacement value of our product proved to be defective.

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