Reclosable fastener SJ355B, Dual Lock™

Supplier: 3M
293-0006EA 112 EUR
Reclosable fastener SJ355B, Dual Lock™
This reclosable fastener solves attachment issues without the use of special tools or complicated, mechanical fastening systems. This ruses an acrylic adhesive that bonds well to a variety of high and medium surface energy materials, including some plastics, metal, glass, and painted surfaces. This allows attachment to access doors, panels, signs, display components, and many other frequently opened and closed parts for easy, repeated access with minimal loss of bonding strength over time.

  • Snap-in-place installation replaces screws, nails, snaps and rivets
  • Type 250 mates to Type 170, 250, or 400
  • Closes with an audible snap
  • Five times the tensile strength of typical hook-and-loop fasteners
  • Opens and closes 1000 times before losing 50% of its original tensile strength
  • Moisture and UV resistant
  • Helps reduce vibration, suitable for both indoor and outdoor use

Teamwork is the idea behind the design of this fastener. When joined together, the unique, mushroom shaped stems combine to interlock with one another, generating five times the closure strength of typical hook and loop fasteners, while maintaining the ability to easily peel-apart for quick access. This reclosable fastener contains 40 mushroom shaped stems/cm² (250 per square inch). When two pieces are pressed together the stems flex and the mushroom heads slide past each other. After mating, the stem snaps back into its original position, interlocking with the opposing heads with an audible snap that signals the fastener is engaged. This ensures a quick and easy installation without the use of a mechanical attachment process. The adhesive sticks quickly and reaches full strength after 72 hours. Once bonded the interlocked, mushroom shaped stems may hold as well as screws and rivets, yet separate easily for access.

There's no limit to the number of uses for these fasteners. The stems, mushroom tops, and film backing are constructed of polypropylene, while the polyolefin backing resists common solvents and alkaline solutions, making them ideal for a variety of applications and environments. The fastener is recommended for use at temperatures ranging from –30 to 70 °C long-term (95 °C short-term).
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