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Black polypropylene strip with mushroom-shaped stems on white liner, roll form

FindTape

FindTape 3M Dual Lock SJ3541 Reclosable Fastener Adhesive

SKU CH-S1V0-45Z56

A 10 ft roll of black polypropylene reclosable fastener with 400 stems per square inch and rubber adhesive for low-surface-energy plastics

  • TypeAdhesive Tapes
  • ColorBlack
  • Reclosable up to 1,000 cycles for repeated access
  • 400 stems per square inch deliver 5× hook-and-loop strength
  • Rubber adhesive bonds to low-surface-energy plastics and powder-coated metal
  • Engaged thickness of .23 inches keeps profiles slim
  • 242 ounces per inch adhesion to stainless steel test panel

Black polypropylene reclosable fastener

3M SJ3541 Dual Lock 400 is a general-purpose black reclosable fastener with mushroom-shaped stems on a polypropylene carrier coated with synthetic rubber adhesive. It offers 5X greater closure strength than hook and loop and mates with type 170, 250 or 400 fasteners for adjustable holding power. The engaged thickness is .23 inches and closure life reaches 1000 cycles.

Check surface compatibility

The rubber adhesive bonds to plastics, powder-coated metal and other low surface energy substrates but may not suit all surfaces. Verify that the mating fastener uses type 170, 250 or 400 stem density because combined stem count determines closure strength. The roll measures 10 feet long by 3/4 inch wide and includes a white polyolefin film release liner.

Mushroom stems interlock for strong reusable

Mushroom-shaped stems on both sides interlock to deliver 242 ounces per inch adhesion to stainless steel and allow repeated opening and closing without tools. This design replaces screws, clips, rivets, snaps, hook and loop and bolts where access or repositioning is needed. Typical uses include indoor signs, cushions, headliners, display components, ceiling attachments, curtain rails, wall panels, POP displays, trade show exhibits, electronics and E-ZPass tags.

Highlights

  • Reclosable up to 1,000 cycles for repeated access
  • 400 stems per square inch deliver 5× hook-and-loop strength
  • Rubber adhesive bonds to low-surface-energy plastics and powder-coated metal
  • Engaged thickness of .23 inches keeps profiles slim
  • 242 ounces per inch adhesion to stainless steel test panel

Specifications

TypeAdhesive Tapes
ColorBlack

Questions about this item

Does the roll include the mating fastener or must I buy a second strip separately?

The roll supplies one side of the fastener with 400 stems per square inch; a mating strip of type 170, 250 or 400 must be purchased separately.

When should I choose this type 400 version instead of a lower stem density?

Type 400 provides the highest closure strength when mated to another type 400 strip, and also works with type 170 or 250 for lighter holding needs.

How does the 242-ounce adhesion figure translate to holding power on a typical wall panel?

That value is measured on stainless steel; on low-surface-energy plastics or powder-coated metal the rubber adhesive still bonds reliably, but actual holding force will be lower.

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