Industrial-grade reclosable loop fastener with high-tack rubber adhesive, woven nylon construction, 5/8 inch width, 50 yard roll length, supports 5000 closure cycles, ideal for furniture, signage, and industrial applications.
The 3M™ Loop Fastener SJ3531 is a premium reclosable fastening solution designed for industrial and occupational applications requiring thousands of reliable opening and closing cycles. This woven nylon loop fastener features a high-tack rubber-based pressure-sensitive adhesive that provides exceptional durability and performance. When paired with 3M™ Hook Fasteners, particularly the SJ3530 model, this fastener system delivers a robust alternative to traditional closure methods such as zippers, screws, snaps, and hooks.
The fastener is engineered with a 3 mil (0.08mm) polyethylene film liner and comes in rolls measuring 5/8 inch (15.87mm) wide by 50 yards (45.72 meters) long. Each case contains 4 rolls, providing substantial coverage for medium to large-scale applications. The woven loop backing is covered with thousands of soft, pliable napped loops that enable smooth engagement and disengagement with corresponding hook fasteners, supporting up to 5000 closure cycles.
The high-tack rubber adhesive system ensures quick stick, short dwell time, and excellent shear strength, making it ideal for bonding to various substrates including plastics like polyethylene and polypropylene. With a maximum operating temperature of 90°F (32°C) and preshrunk construction for stability and flatness, this fastener is best suited for indoor applications including furniture cushion securing, point-of-purchase displays, signage, and general industrial applications.
Key Features
- Woven nylon loop fastener provides great design flexibility and fast product assembly
- High tack rubber-based adhesive offers fast tack, good shear strength and bonds to various substrates including plastics
- Supports 5000 closure cycles when paired with 3M Hook Fasteners for exceptional durability
- Preshrunk construction ensures stability and flatness for reliable performance
- Quick stick pressure-sensitive adhesive with short dwell time eliminates need for sewing or solvent activation
Technical Specifications
| Specification |
Value |
| Product Type | Loop Fastener |
| Product Form | Roll |
| Product Color | Black |
| Overall Width (Imperial) | 0.62 inches (5/8 inch) |
| Overall Width (Metric) | 15.87 millimeters |
| Overall Length (Imperial) | 50 yards |
| Overall Length (Metric) | 45.72 meters |
| Engaged Thickness (Imperial) | 0.15 inches |
| Engaged Thickness (Metric) | 3.8 millimeters |
| Primary Liner Thickness (Imperial) | 3 mil |
| Primary Liner Thickness (Metric) | 0.08 millimeters |
| Maximum Operating Temperature (Fahrenheit) | 90°F |
| Maximum Operating Temperature (Celsius) | 32°C |
| Closure Life (Cycles) | 5000 |
| Units per Case | 4 rolls |
| Smallest Saleable Unit | Roll |
| Adhesive Type | High-tack rubber-based pressure-sensitive adhesive |
| Backing Material | Woven nylon with pliable napped loops |
| Liner Material | Polyethylene film |
| Compatible Hook Fasteners | 3M SJ3530 and other 3M Hook Fasteners |
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