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Black Dual Lock 400 fastener roll 1 inch by 10 feet with acrylic adhesive

3M

3M Dual Lock 400 Reclosable Fastener Black Acrylic Adhesive SJ3551 1 in x 10 ft

SKU CH-JGCC-7BS0P

Black reclosable fastener with 400 stems per square inch and acrylic adhesive bonds metal, glass and high-energy plastics for removable panels and displays

  • TypeAdhesive Tapes
  • ColorBlack
  • 400 stems per square inch deliver strong reclosable hold
  • Mushroom-shaped stems interlock for five times the strength of hook-and-loop fasteners
  • Acrylic adhesive bonds to metals, glass and high-energy plastics
  • Polypropylene carrier provides durable backing for repeated use
  • Rated for 1,000 closure cycles for long-lasting performance

3M Dual Lock 400 Reclosable Fastener

This black reclosable fastener uses mushroom-shaped stems on a polypropylene carrier with an acrylic adhesive backing. It is designed for makers and technicians who need a strong, detachable bond without mechanical hardware. The Type 400 stem density provides 400 stems per square inch for reliable holding power.

Capacity and headroom with 1000 closure cycles

The fastener engages at a thickness of .23 inches and mates with Type 170, 250 or 400 counterparts for adjustable strength. It is rated for 1000 closure cycles before performance declines. It bonds to metals, glass and medium-to-high surface energy plastics, but will not adhere well to low-energy surfaces like polyethylene or polypropylene.

Build integration with acrylic adhesive backing

The pressure-sensitive adhesive allows direct application to prepared surfaces, removing the need for screws, rivets or bolts in many access-panel and signage tasks. It frees up design space by eliminating hardware clearance requirements. The roll format lets you cut custom lengths, though the fixed one-inch width may limit layout options for wider mounting needs.

Highlights

  • 400 stems per square inch deliver strong reclosable hold
  • Mushroom-shaped stems interlock for five times the strength of hook-and-loop fasteners
  • Acrylic adhesive bonds to metals, glass and high-energy plastics
  • Polypropylene carrier provides durable backing for repeated use
  • Rated for 1,000 closure cycles for long-lasting performance

Specifications

TypeAdhesive Tapes
ColorBlack

Questions about this item

Will the 400 stems per square inch on this 1 in x 10 ft roll mate with the type 170 or 250 strips I already have on my panels?

Yes, the type 400 mushroom stems interlock with type 170, 250 or another 400; combined stem density determines closure strength.

How can I confirm the 0.23 inch engaged thickness is achieved after I press the two sides together?

Measure the closed joint with a caliper; a proper engagement should read about 0.23 inches when the stems are fully interlocked.

Does the 10-foot roll include a release liner, or do I need to buy one separately?

The roll ships with either a white 3M liner or a clear liner on the SJ3551CF variant; no separate liner purchase is required.

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