Industrial-grade reclosable fastening solution with 400 stem density mushroom heads, providing 5X stronger tensile strength than hook-and-loop products. Features synthetic rubber adhesive, audible snap closure, and up to 1000 reattachment cycles for versatile indoor applications.
The 3M™ Dual Lock™ Reclosable Fastener SJ3541 is an innovative fastening solution designed as a superior alternative to traditional screws, nuts, and bolts. This industrial-grade product features interlocking mushroom-shaped heads with 400 stem density per square inch, delivering exceptional strength with up to 5X the tensile strength of typical hook-and-loop products. The fastener is constructed with a synthetic rubber-based black polyethylene foam tape protected by a removable film liner, utilizing a pressure-sensitive adhesive that offers quick stick and short dwell time for efficient installation.
This reclosable fastening system is engineered for durability and reliability, allowing for hundreds of reattachments without compromising performance. The product measures 6 inches in width and 50 yards in length, making it ideal for various industrial and commercial applications. The fastener produces an audible snap when properly secured, providing verification of closure, and can be easily disengaged by simply peeling the pieces apart by hand. With a maximum operating temperature of 120°F (49°C) and rated for 1000 closure cycles, this product maintains consistent strength throughout multiple attachments and detachments.
The 3M Dual Lock SJ3541 is particularly well-suited for interior applications including access panels, interior signage, decorative trim, office partitions, and product identification. The synthetic rubber-based adhesive bonds exceptionally well to a variety of substrates, including low surface energy plastics such as polyethylene and polypropylene. As an industrial/occupational product intended for trained professionals, it eliminates the need for drilling, screwing, or sewing tools, providing quick installation and design flexibility while maintaining aesthetic appeal and material integrity.
Key Features
- Interlocking mushroom-shaped heads with 400 stem density per square inch for exceptional strength
- Provides up to 5X greater tensile strength compared to typical hook-and-loop fastening products
- Audible snap verification confirms secure closure and proper engagement
- Synthetic rubber-based adhesive bonds reliably to low surface energy plastics including polyethylene and polypropylene
- Reusable design supports 1000 closure cycles with consistent strength maintenance
- Quick installation without drilling, screwing, or sewing tools required
- Compatible with Type 170 and Type 250 stem densities for customizable strength combinations
- Operates reliably at temperatures up to 120°F (49°C)
- Removable film liner with pressure-sensitive adhesive for quick stick and short dwell time
- Provides clean aesthetic appearance while remaining hidden beneath surfaces
Technical Specifications
| Specification |
Value |
| Product Number | SJ3541 |
| Brand | 3M Dual Lock |
| Product Form | Roll |
| Overall Width (Imperial) | 6 inches |
| Overall Width (Metric) | 152.4 mm |
| Overall Length (Imperial) | 50 yards |
| Overall Length (Metric) | 45.72 meters |
| Product Color | Black |
| Stem Density | 400 per square inch |
| Type Classification | Type 400 |
| Engaged Thickness (Imperial) | 0.23 inches |
| Engaged Thickness (Metric) | 5.8 mm |
| Backing Material | Polyolefin |
| Primary Liner Material | White Polyolefin |
| Primary Liner Thickness (Imperial) | 5 mil |
| Primary Liner Thickness (Metric) | 0.13 mm |
| Adhesive Color | Black |
| Adhesive Type | Synthetic rubber-based pressure-sensitive adhesive |
| Maximum Operating Temperature (Fahrenheit) | 120°F |
| Maximum Operating Temperature (Celsius) | 49°C |
| Closure Life Cycles | 1000 |
| Flame Retardant | No |
| Indoor/Outdoor Rating | Indoor use only |
| Units per Case | 1 roll |
| Smallest Saleable Unit | Roll |
| UPC Code | 00048011579177 |
| 3M ID | 7010373340 |
| Compatible Densities | Mates with Type 170 and Type 250 stem densities |
| Tensile Strength Advantage | Up to 5X greater than typical hook-and-loop products |
| Recommended Applications | Access panels, interior signage, decorative trim, office partitions, product IDs |
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