Premium flame-resistant hook fastener for industrial applications, featuring 4-inch width, 50-yard length, non-adhesive nylon backing, and durability for thousands of cycles. Ideal for aerospace, rail, and furniture applications requiring fire ratings.
The 3M™ Flame Resistant Hook Fastener SJ3419FR is a premium industrial-grade reclosable fastening solution designed for applications requiring flame resistance and exceptional durability. This non-adhesive hook fastener features a woven nylon backing covered with approximately 300 J-shaped hooks per square inch (46 hooks per square centimeter), providing reliable engagement with corresponding loop fasteners. The product is engineered for thousands of opening and closing cycles, making it ideal for aerospace, rail, and industrial applications where fire ratings are critical.
This flame-resistant fastener is most commonly attached by sewing but can also be applied using hot melt or liquid adhesives for maximum flexibility. The absence of adhesive or liner on the backing allows for easy customization and tailored appearance for fabrics and garments. The fastener is both washable and dry cleanable, maintaining its performance characteristics through repeated use and maintenance cycles. With a maximum operating temperature of 200°F (93°C) and preshrunk hook and loop materials for stability and flatness, this product delivers consistent performance in demanding applications.
The 3M™ Flame Resistant Hook Fastener SJ3419FR comes in rolls of 4 inches width by 50 yards length, with 3 rolls per case. It serves as an excellent alternative to traditional closure methods such as zippers, screws, snaps, and hooks. Ideal for securing fabric to furniture cushions, aerospace and rail industry applications, and indoor general industrial applications where fire ratings are required, this fastener provides the strong, tough attachment solutions needed for critical applications.
Key Features
- Flame resistant design with 200°F (93°C) maximum operating temperature for critical aerospace and rail applications
- Approximately 300 J-shaped hooks per square inch (46 hooks/sq cm) for reliable engagement and durability
- Non-adhesive backing allows attachment by sewing or with hot melt and liquid adhesives for maximum flexibility
- Preshrunk hook and loop materials ensure stability, flatness, and consistent performance through thousands of cycles
- Washable and dry cleanable for easy maintenance while preserving performance characteristics in demanding environments
Technical Specifications
| Specification |
Value |
| Product Number | SJ3419FR |
| UPC Code | 00021200460777 |
| Product Type | Hook Fastener |
| Backing Material | Woven Nylon |
| Product Color | Black |
| Overall Width (Imperial) | 4 inches |
| Overall Width (Metric) | 101.6 millimeters |
| Overall Length (Imperial) | 50 yards |
| Overall Length (Metric) | 45.72 meters |
| Product Form | Roll |
| Total Tape Thickness without Liner (Imperial) | 78.74 mils (0.0787 inches) |
| Total Tape Thickness without Liner (Metric) | 2 millimeters |
| Engaged Thickness (Imperial) | 0.15 inches |
| Engaged Thickness (Metric) | 3.8 millimeters |
| Hook Density | 300 hooks per square inch (46 hooks per square centimeter) |
| Maximum Operating Temperature (Fahrenheit) | 200°F |
| Maximum Operating Temperature (Celsius) | 93°C |
| Closure Life | 5000 cycles |
| Primary Liner Thickness (Imperial) | 3 mils |
| Primary Liner Thickness (Metric) | 0.08 millimeters |
| Units per Case | 3 rolls |
| Smallest Saleable Unit | Roll |
| Adhesive Type | Non-adhesive (No adhesive or liner) |
| Attachment Methods | Sewing, hot melt adhesive, or liquid adhesives |
| Brand | 3M™ |
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