3M SJ3550 Dual Lock Reclosable Fastener for Strong Reusable Bonding

Short Description:

3M SJ3550 Dual Lock Reclosable Fastener is a high-performance mushroom-head fastening solution designed for strong, reliable, and reusable bonding. It features a Type 250 stem density on a clear acrylic adhesive (VHB-based) backing, providing excellent holding strength on a wide range of surfaces, including metals, glass, plastics, and painted substrates. Unlike traditional hook-and-loop fasteners, SJ3550 offers a low-profile, snap-in engagement with high tensile and shear strength, making it ideal for applications requiring repeated opening and closing without losing performance. It also helps reduce the need for mechanical fasteners such as screws or rivets, improving appearance and simplifying assembly.

Send email to us Download as PDF

Product Detail

Product Tags

Product Features

1. Strong mushroom-head interlocking design provides secure and durable fastening.
2. Clear acrylic adhesive bonds well to metal, glass, plastic, and painted surfaces.
3. Reclosable system allows multiple open-close cycles without loss of performance.
4. Low-profile design offers a clean and professional appearance.
5. Easy pressure-sensitive application simplifies installation.

Product Basic Specifications

Adhesive Color	White
Adhesive Type	Acrylic
Backing (Carrier) Material	Polypropylene
Engaged Thickness	5.8 mm
Primary Liner Thickness (Metric)	0.1mm
Maximum Operating Temperature(Fahrenheit)	200℉
Product Color	Black
Product Form	Roll
Overall Length (Metric)	45.72m
Overall Width (Metric)	12.7 mm,19.05 mm,25.4 mm,38.1mm,50.8 mm,152.4mm
Die Cutting	Available

Product Application

* Removable panels and covers for industrial equipment.
* Mounting and fastening of electronic components and housings.
* Interior trim and lightweight parts in automotive applications.
* Signage, displays, and modular exhibition systems.
* General industrial and maintenance applications requiring reusable fastening.