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3M SJ 3550

3M SJ 3550 Unlock simplicity, super strength, and ultimate ease. The remarkable 3M™ Dual Lock Reclosable Fastener can be opened and closed up to 1,000 times before losing 50% of its original strength, for repeated access or repositioning.
The mushroom heads easily slide over each other allowing positioning of parts before they are snapped together to create a firm fastening attachment.
When mated, the fasteners are hidden from view and leave you with an unbroken surface for a smooth, clean appearance.

  • Adhesive Color: White
  • Adhesive Type: General Purpose Acrylic Adhesive

Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3550 has exceptional strength through its interlocking mushroom-shaped heads (250 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products.
We designed this fastener with a white, acrylic, conformable foam tape protected by a removable, film liner.
This solid, pressure-sensitive foam tape features a strong, durable bond that is heat, chemical, and UV resistant. With 3M™ Dual Lock™ Reclosable Fastener SJ3550, there is no need for any drilling, screwing, or sewing tools which makes for quick installation.

3M SJ 3550
3M SJ 3550
3M SJ 3550
3M SJ 3550

3M SJ 3550 Features

  • Black, interlocking mushroom-shaped heads (250 stem density per square inch) provide strong, reliable, and durable fastening that can be opened and closed multiple times
  • Mates with Type 170, Type 250, or Type 400 stem densities provide different strength combinations
  • White, acrylic, conformable foam tape bonds well to a variety of substrates including metals and plastics such as acrylics, polycarbonate, and ABS
  • Strong fastener secures with an audible snap, verifying closure
  • An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic appearance
  • Features good temperature resistance of 200°F (93°C)
  • Best suited for indoor and outdoor use

3M SJ 3550 Applications

  • Access panels
  • Graphic attachment
  • Specialty vehicles (interior attachments)
  • General industrial attachment
  • Small components

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    We provide standardized adhesive tapes as well as customized services from coating to die-cutting. 

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