Premium flame resistant hook fastener with 5000+ closure cycles, woven nylon backing, and temperature resistance to 200°F. Ideal for aerospace, rail, and industrial applications requiring fire ratings.
The 3M™ Flame Resistant Hook Fastener SJ3419FR is a premium reclosable fastening solution designed for applications requiring exceptional durability and flame resistance. This industrial-grade hook fastener features a woven nylon backing with approximately 300 hooks per square inch, providing thousands of reliable opening and closing cycles. The fastener is engineered specifically for aerospace, rail, and industrial applications where fire ratings are critical requirements.
This non-adhesive, non-liner design offers exceptional flexibility in application methods. The hook fastener can be attached through sewing, hot melt adhesives, or liquid adhesives, making it ideal for custom fabrication and specialized installations. The product delivers excellent temperature resistance up to 200°F (93°C) and maintains its performance characteristics across repeated use cycles. Both the hook and loop components are preshrunk to ensure stability and flatness, providing a professional appearance and reliable long-term performance.
The 3M™ Flame Resistant Hook Fastener SJ3419FR is supplied in convenient 2-inch wide rolls with 50 yards of material per roll, packaged in cases of 6 rolls for efficient inventory management. This fastener serves as an ideal alternative to traditional closure methods including zippers, screws, snaps, and hooks. It is washable and dry cleanable, making it suitable for upholstery, furniture cushions, apparel closures, and graphic attachments. The product is intended for industrial and occupational use only and must be used in compliance with applicable health and safety regulations.
Key Features
- Flame resistant design meeting critical aerospace and rail industry standards
- Durable woven nylon backing with approximately 300 hooks per square inch
- Supports 5000+ opening and closing cycles for extended product life
- Non-adhesive, non-liner construction allowing flexible attachment methods
- Temperature resistant up to 200°F (93°C) with preshrunk components for stability
Technical Specifications
| Specification |
Value |
| Product Number | SJ3419FR |
| UPC | 00021200633591 |
| 3M ID | 7000051785 |
| Color | Black |
| Backing Material | Woven Nylon |
| Product Form | Roll |
| Overall Width (Imperial) | 2 inches |
| Overall Width (Metric) | 50.8 mm |
| Overall Length (Imperial) | 50 yards |
| Overall Length (Metric) | 45.72 meters |
| Total Tape Thickness without Liner (Imperial) | 78.74 mil |
| Total Tape Thickness without Liner (Metric) | 2 mm |
| 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) | 200°F |
| Maximum Operating Temperature (Celsius) | 93°C |
| Closure Life | 5000 cycles |
| Hook Density | Approximately 300 hooks per square inch (46 hooks per square centimeter) |
| Units per Case | 6 rolls |
| Smallest Saleable Unit | Roll |
| Product Type | Hook Fastener |
| Adhesive | None - Non-adhesive design |
| Attachment Methods | Sewing, hot melt adhesives, or liquid adhesives |
| Washable | Yes |
| Dry Cleanable | Yes |
| Preshrunk | Yes - Both hook and loop components preshrunk for stability and flatness |
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