Professional black woven nylon loop fastener with high-tack rubber adhesive, 4 inches wide by 50 yards long, providing 5000 closure cycles for industrial applications
The 3M™ Loop Fastener SJ3531 is a professional-grade reclosable fastening solution designed for industrial and occupational applications. This black woven nylon loop fastener features a high-tack rubber-based pressure-sensitive adhesive backing that provides exceptional durability through thousands of opening and closing cycles. The fastener comes in a convenient 4-inch width by 50-yard length roll format, making it ideal for high-volume production and assembly operations.
This loop fastener is engineered to work seamlessly when paired with 3M™ Hook Fasteners, particularly the SJ3530 model, creating a complete two-part fastening system that serves as an excellent alternative to traditional closures like zippers, screws, snaps, and hooks. The woven nylon construction with soft, pliable napped loops provides superior design flexibility and enables fast product assembly without the need for sewing, solvent activation, or bulk adhesive bonding. The fastener delivers impressive closure life of up to 5,000 cycles, ensuring long-lasting performance in demanding industrial environments.
With its high-tack rubber adhesive system, the SJ3531 bonds quickly to a wide variety of substrates including plastics such as polyethylene and polypropylene, making it versatile for multiple applications. The 3-mil polyethylene film liner ensures stability and flatness, while the preshrunk hook and loop components maintain consistent performance. Ideal for securing fabric to furniture cushions, point-of-purchase displays, signage, and general indoor industrial applications, this fastener delivers reliable performance with a maximum operating temperature of 90°F (32°C), making it best suited for indoor use.
Key Features
- Woven nylon loop fastener with soft, pliable napped loops for thousands of opening and closing cycles
- High-tack rubber-based pressure-sensitive adhesive provides fast tack and good shear strength
- Bonds to variety of substrates including polyethylene and polypropylene plastics
- Works seamlessly with 3M Hook Fasteners for complete two-part fastening system
- Preshrunk hook and loop components ensure stability and consistent flatness
- 5000 closure life cycles for long-lasting durability
- Alternative solution to zippers, screws, snaps, and traditional hooks
- Maximum operating temperature of 90°F (32°C) suitable for indoor applications
- Eliminates need for sewing, solvent activation, or bulk adhesive bonding
- Fast product assembly and design flexibility for industrial use
Technical Specifications
| Specification |
Value |
| Product Type | Loop Fastener |
| Brand | 3M |
| Model Number | SJ3531 |
| Product Color | Black |
| Product Form | Roll |
| Overall Width (Imperial) | 4 inches |
| Overall Width (Metric) | 101.6 mm |
| Overall Length (Imperial) | 50 yards |
| Overall Length (Metric) | 45.72 meters |
| Engaged Thickness (Imperial) | 0.15 inches |
| Engaged Thickness (Metric) | 3.8 mm |
| Primary Liner Thickness (Imperial) | 3 mil |
| Primary Liner Thickness (Metric) | 0.08 mm |
| Maximum Operating Temperature (Fahrenheit) | 90°F |
| Maximum Operating Temperature (Celsius) | 32°C |
| Closure Life Cycles | 5000 |
| Units per Case | 1 Roll |
| Smallest Saleable Unit | Roll |
| Adhesive Type | High-Tack Rubber-Based Pressure Sensitive |
| Material Composition | Woven Nylon with Polyethylene Film Liner |
| Compatible Substrates | Plastics (Polyethylene, Polypropylene), Fabric, Metal, and Various Industrial Materials |
| Complementary Product | 3M Hook Fastener SJ3530 |
| Application Environment | Indoor Use Only |
| UPC Code | 00021200268564 |
| 3M ID | 7010339659 |
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