1. 3M™ Dual Lock™ Reclosable Fasteners

3M™ Dual Lock™ Reclosable Fasteners

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3M™ Dual Lock™ Reclosable Fasteners

  • Still image from a repeating GIF showing a hand using a roller to snap together a strip of 3M™ Dual Lock™

    Reliably Strong, Over and Over Again

    When you need a strong, reliable attachment that also opens and recloses, look no further than 3M™ Dual Lock™ Reclosable Fasteners. Strong, interlocking mushroom-shaped heads slide past each other to close with a snap, then peel apart easily when you need to reopen. 3M™ Dual Lock™ Reclosable Fastener strips make excellent quick-release access panel fasteners and die-cut pieces can also be used to attach accessories to a dashboard or windshield. The quick-release fastening can also be used for interior panels that require maintenance or changeable signage and display units.
     

    • Interlocking mushroom-shaped heads have five times the tensile strength of hook and loop products
    • Durable — open and close up to 1,000 times before losing 50% of original tensile strength
    • Temperature, moisture and UV resistant
    • Pressure-sensitive adhesive easily forms a powerful bond
    • Easy to apply and maintain, easy to clean out dust or debris
    • Helps reduce vibration
    • A variety of pressure-sensitive adhesives are available to form a powerful bond with many materials
    • Low profile option is approximately half the thickness of standard 3M™ Dual Lock Reclosable Fastener
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3M™ Dual Lock™ Reclosable Fastener SJ35XX

For thinner applications, see our low profile products including: SJ4570 (clear, indoor use), SJ4575 (black) and SJ4580 (clear, indoor/outdoor use).


Mix and Match Densities for the Strength You Need

Different combinations within the 3M™ Dual Lock™ Reclosable Fastener family let you find the right strength for your application. 3M™ Dual Lock™ Reclosable Fasteners have mushroom-shaped heads in three different densities, or Types: approximately 170, 250 or 400 heads per square inch. Start by mating 250:250 and then determine what to try next.

  • Image of hands pressing together a strip of 3M™ Dual Lock™ in a work setting

    3M™ Dual Lock™ Reclosable Fastener Simplicity

    • Easy to Apply: Just peel off the protective liner from each mated piece of 3M™ Dual Lock™, attach them to your separate pieces (using a roller to ensure good adhesion) and then push the pieces together until you feel the mushroom-shaped heads interlock. Alternate method: Peel the protective liner from one side and attach the mated strip to one surface using a roller to ensure good adhesion, then peel the other liner to expose the adhesive and attach your second surface, pressing down to ensure good adhesion; the pieces can then be peeled apart for access.
    • Easy to Maintain: Just detach the pieces for easy cleaning and maintenance – fastener can be sprayed out with water or air to remove dirt or debris.
    • Easy to Replace: To change a sign or replace a panel, remove the original sign or panel and apply a new strip of either 3M™ Dual Lock™ to the new piece as described above, then push the pieces together.
    • Technical Bulletin (PDF, 627.3 KB): Designing with 3M™ Dual Lock™ Reclosable Fasteners

  • Line drawing of a mass transit interior with red lines where 3M™ Dual Lock™ can be used for panel attachment
    Interior Panel Attachments
    • Passenger rail cars
    • Buses
    • Ambulances
    • Marine vessels
    • Elevators
  • Line drawing of a pipe valve access panel with red lines where 3M™ Dual Lock™ can be used for panel attachment
    Removable Access Panels
    • Water and natural gas valves
    • Electrical junctions
    • Elevator control boxes
    • Recessed lighting
  • Line drawing of a vehicle interior with a red rectangle where 3M™ Dual Lock™ can be used for windshield attachment
    Mobile Mounting
    • Windshields
    • Vehicle dashboards
    • Electronics, sensors or trackers
    • Motorcycle or RV accessories
  • Line drawing of a sign base with red lines where 3M™ Dual Lock™ can be used for changeable signs
    Signage and Display
    • Free-standing signage
    • Kiosk assembly
    • Point-of-sale system attachment
    • Placards or retail price tags

See 3M™ Dual Lock™ Reclosable Fasteners in Action

Video still of Paul Bulger, co-founder of TOURIG, discussing how 3M™ Dual Lock™ tapes help the company’s production
Tourig Testimonial
  • Video still of a partly separated strip with the title 3M™ Dual Lock™ Reclosable Fasteners
    3M™ Dual Lock™ Reclosable Fasteners

    Watch and learn about the many ways to use 3M™ Dual Lock™ Reclosable Fasteners

  • Video still of a man talking to the camera with text 3M Leading Adhesive Technologies-Unique Interlocking
    3M™ Dual Lock™ Reclosable Fasteners Markets and Applications

    See how 3M™ Dual Lock™ Reclosable Fasteners can be applied in a wide variety of markets and applications.

  • Video still of two women in lab coats preparing to demonstrate the strength of 3M™ Dual Lock™
    How Much Weight Can They Hold?

    3M™ Dual Lock™ Reclosable Fasteners are reliable and strong. See how much weight they can hold!


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Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at 1-800-831-0658.

Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at 1-800-831-0658.

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Reliable holding power for lighter duty

  • If your application doesn’t require all the strength 3M™ Dual Lock™ Reclosable Fastener provides, we also offer 3M™ Hook and Loop Fasteners for reliable, repeatable closure in more ordinary situations.

  • Learn more about the advantages of 3M™ Reclosable Fasteners for a firm hold with easy opening and reclosure.