• Item Name: 3M™ Dual Lock™ Reclosable Fastener SJ3540
• Manufacturer: 3M
• Technologies: Interlocking mushroom-shaped heads, synthetic rubber adhesive, black PE foam tape
• Color: Black
• Cure Type: Pressure-sensitive adhesive (self-adhesive, no curing required)
• Package Size: 1.0, 2.0, 4.0 Roll/Case
• Shelf Life: Contact to Techniq VN for details
1. Product Overview
3M™ Dual Lock™ Reclosable Fastener SJ3540 is a black, durable fastener with interlocking mushroom-shaped heads at 250 stems per square inch. It features a synthetic rubber-based black PE foam tape, offering a strong, reclosable attachment suitable for low surface energy plastics and a variety of other substrates. This fastener provides a convenient alternative to screws, nuts, or bolts for indoor applications.
2. Applications
Ideal for indoor use, it is commonly used for access panels, interior signage, decorative trim, and office partitions. The fastener enables precise positioning before engagement and supports rapid assembly with a smooth, hidden attachment.
3. Typical Properties
| Property | Description |
|---|---|
| Product Type | Reclosable fastener with interlocking mushroom heads |
| Color | Black |
| Adhesive Color | Black |
| Adhesive Type | Synthetic rubber |
| Stem Density | 250 stems per square inch |
| Engaged Thickness | 5.8 mm |
| Closure Life | Up to 1000 open/close cycles |
| Maximum Operating Temperature | 49 °C |
| Backing Material | Polypropylene, Polyolefin |
| Primary Liner | White polyolefin, 0.13 mm thick |
| Form | Roll |
| Units per Case | 1, 2, or 4 rolls |
| Dimensions Available | 12.7 mm – 152.4 mm width; 45.72 m length |
| Performance Features | Durable fastening with audible snap, hidden attachment, smooth appearance |
| Recommended Industries | Furniture, General Industrial, Packaging, Construction, Retail, Electronics, MRO |
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