Premium reclosable fastener with interlocking mushroom heads, 250 stem density, reusable up to 1,000 times, strong adhesive foam tape for industrial applications.
The 3M™ Dual Lock™ Reclosable Fastener SJ3550 is a premium industrial-grade fastening solution featuring interlocking mushroom-shaped heads with 250 stem density per square inch. This innovative fastener delivers exceptional strength with up to 5X the tensile strength of typical hook-and-loop products, while maintaining the flexibility to be opened and closed up to 1,000 times before losing 50% of its original strength. The product consists of a white, acrylic, conformable foam tape protected by a removable film liner, ensuring reliable performance in diverse applications.
Designed for both indoor and outdoor use, the 3M™ Dual Lock™ Reclosable Fastener SJ3550 offers excellent temperature resistance up to 200°F (93°C) and superior chemical and UV resistance. The fastener features an audible snap when secure, verifying proper closure, and can be easily disengaged by simply peeling the pieces apart by hand. With its interlocking mushroom-shaped heads, this fastener provides design flexibility by allowing positioning of parts before snapping them together to create a firm attachment with a smooth, clean aesthetic appearance.
This reclosable fastener is an ideal alternative to traditional fastening methods such as screws, nuts, and bolts, eliminating the need for drilling, screwing, or sewing tools. Available in a convenient 2 roll per case format with each roll measuring 3/4 inch wide by 50 yards long, the SJ3550 is suitable for access panels, graphic attachment, specialty vehicles, general industrial attachment, and small component fastening. The product mates with Type 170, Type 250, or Type 400 stem densities to provide customizable strength combinations for varying project requirements.
Key Features
- Interlocking mushroom-shaped heads with 250 stem density provide 5X stronger tensile strength than typical hook-and-loop fasteners
- Reusable up to 1,000 times before losing 50% of original strength for extended product lifecycle
- Audible snap verification ensures secure closure with easy hand-peel disengagement
- Excellent temperature resistance up to 200°F (93°C) with superior chemical and UV resistance
- White acrylic conformable foam tape bonds well to metals and plastics including acrylics, polycarbonate, and ABS
- No drilling, screwing, or sewing required for quick and tool-free installation
- Compatible with Type 170, Type 250, and Type 400 stem densities for customizable strength combinations
- Smooth aesthetic appearance with hidden fasteners providing design flexibility
Technical Specifications
| Specification |
Value |
| Product Number | SJ3550 |
| UPC Code | 00021200563652 |
| Product Form | Roll |
| Overall Width (Imperial) | 0.75 inches |
| Overall Width (Metric) | 19.05 millimeters |
| Overall Length (Imperial) | 50 yards |
| Overall Length (Metric) | 45.72 meters |
| Engaged Thickness (Imperial) | 0.23 inches |
| Engaged Thickness (Metric) | 5.8 millimeters |
| Product Color | Black |
| Adhesive Color | Black |
| Stem Density | 250 per square inch |
| Closure Life | 1,000 cycles |
| Maximum Operating Temperature (Fahrenheit) | 200°F |
| Maximum Operating Temperature (Celsius) | 93°C |
| Backing Material | Polyolefin |
| Primary Liner | Clear Polyolefin |
| Primary Liner Color | Transparent |
| Primary Liner Thickness (Imperial) | 4 mils |
| Primary Liner Thickness (Metric) | 0.1 millimeters |
| Flame Retardant | No |
| Indoor/Outdoor | Indoor/Outdoor |
| Units per Case | 2 rolls |
| Smallest Saleable Unit | Roll |
| Brand | 3M Dual Lock™ |
Order 3M Dual Lock Reclosable Fastener SJ3550 Black 3/4 inch at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
