3M SJ3526N
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Quick Reclosable Hook Attachment
- Rubber PSA for Low-Energy Plastics
- Manual or Automated Installation
Product Description
3M Hook Fastener SJ3526N is the adhesive-backed woven nylon hook side of a reclosable fastening system. Its flexible, self-supporting surface has approximately 300 inverted J-hooks per square inch and engages compatible 3M loop material to close; the strips separate by hand for access. A high-performance rubber pressure-sensitive adhesive attaches the hook backing to clean, prepared substrates, including low-surface-energy plastics. The product is commonly paired with 3M Loop Fastener SJ3527N and is available in multiple colors, widths, and roll lengths. Its pressure-sensitive backing supports manual or automated installation without separate sewing or bulk adhesive bonding.
Key features
- Quick reclosable fastening: The hook engages compatible loop material to close and separates by hand for repeated access.
- Rubber PSA attachment: Attaches the hook backing to clean, prepared substrates, including low-surface-energy plastics.
- Manual or automated installation: The pressure-sensitive backing supports flexible assembly methods without separate sewing or bulk adhesive bonding.
Applications
Applications include indoor reclosable fastening, securing fabric to furniture cushions, point-of-purchase displays and signage, and general industrial attachment with compatible loop material.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
SJ3526N is the hook component; a compatible loop fastener is required to form the reclosable system.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Colors | Black, white | Standard listed colors | |
| Hook material | Woven nylon | Flexible inverted J-hooks | |
| Adhesive type | Rubber | Pressure-sensitive adhesive | |
| Weight | 0.062 | g/cm^2 | Typical |
| Maximum unmated thickness | 2.4 | mm | Without liner; depends on compression load |
| Liner | Polyethylene with red printing | White primary liner color | |
| Liner thickness | 0.08 | mm | Typical |
After-processing / final-state properties
Closure values apply to the stated nylon hook-to-loop test configuration and are not adhesive-to-substrate bond values.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Engaged thickness | 3.6 | mm | Nylon hook to nylon loop; depends on compression load |
| 90 deg peel adhesion | 3.9 | g/cm width | 23 deg C; 304 mm/min; one fastener attached to non-anodized aluminum |
| Overlap shear strength | 15.2 | N/cm^2 | Nylon hook to nylon loop; 304 mm/min |
| T-peel adhesion | 3.5 | g/cm width | ASTM D5170 closure performance; 304 mm/min |
| Dynamic tensile | 7.6 | N/cm^2 | Nylon hook to nylon loop; 304 mm/min |
| Cleavage strength | 13.1 | g/cm width | Nylon hook to nylon loop |
| Long-term temperature resistance | 49 | deg C | Days to weeks |
| Cycle life | 5,000 | closures | Before losing 50% of original peel strength |
