
3M™ Dual Lock™ Reclosable Fasteners
When you need a strong, reliable attachment that also opens and recloses, look no further than 3M™ Dual Lock™ Reclosable Fasteners. Strong, interlocking mushroom-shaped heads slide past each other to close with a snap, then peel apart easily when you need to reopen. 3M™ Dual Lock™ Reclosable Fastener strips make excellent quick-release access panel fasteners and die-cut pieces can also be used to attach accessories to a dashboard or windshield. The quick-release fastening can also be used for interior panels that require maintenance or changeable signage and display units.
Market
- Transport
- Industrial
- Display & Graphics
Colors
- White
- Black
- Transparent

RELIABLY STRONG, OVER AND OVER AGAIN
- Interlocking mushroom-shaped heads have five times the tensile strength of hook and loop products
- Durable — open and close up to 1,000 times before losing 50% of original tensile strength
- Temperature, moisture and UV resistant
- Pressure-sensitive adhesive easily forms a powerful bond
- Easy to apply and maintain, easy to clean out dust or debris
- Helps reduce vibration
- A variety of pressure-sensitive adhesives are available to form a powerful bond with many materials
- Low profile option is approximately half the thickness of standard 3M™ Dual Lock Reclosable Fastener
3M™ Dual Lock™ Reclosable Fastener
Product Family | Adhesive Type | Substrates | Type 170 | Type 250 | Type 400 |
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SJ3540 (Black) | Rubber-based | Indoor Use with: Aluminum, Stainless Steel, Acrylic, PC, ABS, Powder Coated Paints, Polypropylene | SJ3542 | SJ3540 | SJ3541 |
SJ3550 (Black) | Conformable Acrylic | Indoor/Outdoor Use with: Aluminum, Stainless Steel, Glass, Acrylic, PC, ABS | SJ3552 | SJ3550 | SJ3551 |
SJ3560 (Clear) | Firm Acrylic | Indoor/Outdoor Use with: Aluminum, Stainless Steel, Glass, Acrylic, PC, ABS | SJ3562 | SJ3560 | SJ3561 |
SJ3870 (Black) | Conformable Modified Acrylic | Indoor/Outdoor Use with: Aluminum, Stainless Steel, Acrylic, PC, ABS, Powder Coated Paints | SJ3872 | SJ3870 | SJ3871 |

Die Cutting & Converting
Halco is an expert at hook and loop die-cutting and can cut specific shapes very efficiently to match your design. We also slit and add custom liners to our materials to better match our customer’s assembly process.
APPLICATIONS
Interior Panel Attachments
– Passenger rail cars
– Buses
– Ambulances
– Marine vessels
– Elevators
Removable Access Panels
– Water and natural gas valves
– Electrical junctions
– Elevator control boxes
– Recessed lighting
Mobile Mounting
– Windshields
– Vehicle dashboards
– Electronics, sensors or trackers
– Motorcycle or RV accessories
Signage and Display
– Free-standing signage
– Kiosk assembly
– Point-of-sale system attachment
– Placards or retail price tags

See It IN Person
Request a sample of this product to test the material and make sure it’s a perfect fit for your application.
Industry Standards and Certifications
- REACH & RoHS Compliant
- CALIFORNIA PROP 65