3M Dual Lock strips: repositionable assembly performance

What is 3M Dual Lock technology?

Bands 3M Dual Lock are high-performance hook-and-loop fasteners designed to replace traditional fastening systems (screws, rivets, adhesives). They are distinguished by their "interlocking mushroom" system, offering exceptional mechanical strength and the ability to re-open without any loss of effectiveness. 

Why is it unique? 
Unlike traditional Velcro straps, Dual Lock technology works like a snap, with two rigid sides that fit together audibly, ensuring a solid, precise fit. 

Contact our team for a sample or a made-to-measure quote. 

Advantages of 3M Dual Lock adhesive tapes

Choose 3M Dual Lockis to choose a durable, powerful and economical solution for your industrial fasteners. 

  • Heavy-duty fixing vibrations, loads, humidity and temperature variations. Ideal for the automotive, electronics and transport industries. 
  • Invisible solution No drilling or riveting = clean, functional design. 
  • Reusable up to 1000 cycles without loss of performance. 
  • Quick and easy to apply with powerful acrylic adhesive, even on difficult surfaces (PE, PP, powder paint, etc.). 
  • Excellent alternative to structural bonding in constrained environments. 

Whether you're a methods manager, industrial buyer or design office technician, our ADDEV Materials experts can help you make the right selection for your needs. 

Here are three key products in the Dual Lock range, chosen for their performance and universal applicability: 

 Dual Lock SJ3550 

  • 5 rods/cm² system (Type 400), reinforced acrylic adhesive. 
  • Supports up to 1kg/cm² tensile load. 
  • Perfect for joining panels in ABS, rigid PVC or painted metal. 
  • Applications Dashboard cladding, inspection panels, wiring ducts. 

 Dual Lock SJ3560 

  • Transparent adhesive, ideal for discreet fixing to glass or translucent plastics. 
  • Excellent UV and moisture resistance. 
  • Applications medical equipment, window displays, outdoor signage. 

 Dual Lock SJ4570 

  • Ultra-thin (1.7 mm thick), perfect for tight spaces. 
  • Adheres to metal, glass, plastic and powder coatings. 
  • Applications on-board electronics, control systems, point-of-sale displays. 
  • Durable fixing of technical covers in watertight electrical enclosures. 
  • Integration of sensors on metal structures without drilling or screwing. 
  • Removable assembly of body panels or passenger compartment components. 
  • Fixing signage or display equipment in public places. 
  • Temporary or permanent installation of on-board electronic components. 
  • Customised technical support Our application engineers will help you specify the right reference. 
  • Reactive European stock short lead times for references SJ3550, SJ3560, SJ4570. 
  • Tailor-made solutions Custom cut-outs, specific formats, fixing kits. 
  • B2B tracking and reliability : commercial conditions tailored to major industrial accounts. 

Our technical team will support you to qualify the right solution according to : 

  • your substrate (PE, ABS, stainless steel, paint, etc.) 
  • conditions of use (temperature, humidity, dismantling cycles, etc.) 
  • your design or accessibility constraints 

📩 Fill in our contact form to be called back within 48 hours. 

Our partnership with 3M

3M Preferred converter

For over 20 years, 3M & ADDEV Materials have been working together to meet the industrial challenges of the players involved.

As a 3M Select Converter, thanks to our converting capabilities as well as 3M technologies, we provide our customers with tailor-made solutions, adapted to their technical constraints.

3M supports us in our developments through our 3 Business groups including Mobility & Industries.

FAQ - Dual lock 3M

The Dual Lock system uses rigid rods that fit together, offering much greater mechanical strength than conventional Velcro. 

Yes, as long as you use references with high-performance acrylic adhesive, such as SJ3550. 

Up to 1000 opening/closing cycles without significant loss of performance

It varies from 1.7 mm (SJ4570) to over 5 mm depending on the version. We can advise you according to your space constraints.