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3M™ Dual Lock™ Reclosable Fastener SJ3550 250
Black, 1/2 in x 50 yd 0.22 in (5.6 mm), 4 per case Bulk
3M ID 70070521094, UPC 00021200658150
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Specifications
Adhesive Type General Purpose Acrylic Adhesive
Applications Attaching City Bus light fixtures , Ceiling Attachment ,
Privacy Curtain Rail Attaching , Sunroof Trim Attachment
, Wall Headliner Attachment , Wall Panel Attachment
Brand Dual Lock
Closure Life 1000
Color Black
Engaged Thickness (Imperial) 0.23 Inch
Flame Retardant No
Indoor/Outdoor Both
Industries Automotive , Construction , Electronics , Furniture ,
General Industrial , Medical , Military & Government ,
MRO , Packaging , Retail , Specialty Vehicle ,
Transportation
Length 50 Linear Yard
★★★★★
Black, interlocking mushroom-
shaped heads (250 stem density
per square inch) provide strong,
reliable and durable fastening that
can be opened and closed
multiple times
Mates with Type 170, Type 250 or
Type 400 stem densities to
provide different strength
combinations
White, acrylic, conformable foam
tape bonds well to a variety of
substrates including metals and
plastics such as acrylics,
polycarbonate and ABS More...
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ABOUT US PARTICLES BY 3M
Black, interlocking mushroom-shaped heads (250 stem density per square inch) provide strong,
reliable and durable fastening that can be opened and closed multiple times
Mates with Type 170, Type 250 or Type 400 stem densities to provide different strength
combinations
White, acrylic, conformable foam tape bonds well to a variety of substrates including metals and
plastics such as acrylics, polycarbonate and ABS
Strong fastener secures with an audible snap, verifying closure
An alternative to screws and bolts, this hidden fastener provides a snug fit and smooth aesthetic
appearance
Features good temperature resistance of 200°F (93°C)
Best suited for indoor and outdoor use
3M™ Dual Lock™ Reclosable Fastener SJ3550 is the convenient alternative to traditional fastening
methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution
(which can be opened and closed multiple times) which bonds to a variety of substrates including
metals and plastics such as acrylics, polycarbonate and ABS.
Length (Metric) 45.72 m
Low Profile No
Maximum Operating Temperature
(Celsius)
93 Degree Celsius
Maximum Operating Temperature
(Fahrenheit)
200 Degree Fahrenheit
Primary Liner Clear Polyolefin
Primary Liner Thickness 4 mil
Product Form Roll
Solution for Wireless Network: Infrastructure Accessories
Stem Density 250
Substrate 1 Glass (Inked Glass - Ceramic) , Metal (Aluminum -
Powder Coated - Copper - Stainless Steel -
Zinc/Galvanized) , Plastics/Composites (ABS - Carbon
Fiber - Acrylic - Fiberglass - Polycarbonate - Polyester -
Polyimide - Polystyrene - Rigid Vinyl)
Substrate 2 Glass (Inked Glass - Ceramic) , Metal (Aluminum -
Powder Coated - Copper - Stainless Steel -
Zinc/Galvanized) , Plastics/Composites (ABS - Carbon
Fiber - Acrylic - Fiberglass - Polycarbonate - Polyester -
Polyimide - Polystyrene - Rigid Vinyl)
Thickness (Metric) 5.7 mm
Volatile Organic Compounds (VOCs) See Safety Data Sheet, Regulatory Data Sheet
Width 0.5 Inch
Width (Metric) 12.7 mm
Details
3M™ Dual Lock™ Reclosable Fasteners are
available in three stem densities to
customize for the strength requirements of
your project
Unlock Simplicity
Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3550 has exceptional strength through
its interlocking mushroom-shaped heads (250 stem density per square inch), providing up to 5X the
tensile strength of typical hook-and-loop products. We designed this fastener with a white, acrylic,
conformable foam tape protected by a removable, film liner. This solid, pressure sensitive foam tape
features a strong, durable bond that is heat, chemical and UV resistant. With 3M™ Dual Lock™
Reclosable Fastener SJ3550, there is no need for any drilling, screwing or sewing tools which makes
for quick installation.
Recommended Applications:
Access panels
Graphic attachment
Specialty vehicles (interior attachments)
General industrial attachment
Small components
Design Flexibility
3M™ Dual Lock™ Reclosable Fastener SJ3550 consists of interlocking mushroom-shaped heads that
easily slide over each other, allowing for positioning of parts before being snapped together. This
fastening process creates a durable attachment and provides fast product assembly with great design
flexibility. Our reclosable fasteners can also engage with different stem densities for varying levels of
strength and system performance.
3M™ Dual Lock™ Reclosable Fasteners sound an audible snap when secure, which verifies closure of
the attachment. To disengage, simply peel the pieces apart by hand. Our fasteners maintain their
strength throughout multiple attachments and detachments. A lightweight alternative to metal
fasteners, this product remains hidden beneath surfaces and does not interfere with the integrity of
your material—providing aesthetic improvements and design flexibility.
Hundreds of Reattachments in a Snap
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners mate, the stems flex and the mushroom
heads slide past each other. After passing the opposing mating piece, the stems snap back into their
original position and the opposing mushroom heads interlock. These fasteners can provide high tensile
strength but can be opened by simply cleaving or peeling open the closure. This product is well suited
for many indoor and outdoor applications where a high strength and versatile reclosable fastening
system is required.
Delivers Long-Lasting Performance
Not all design requirements are easily satisfied, but you can simplify your attachments. When you need
a strong, reliable, yet removable closure, 3M™ Dual Lock™ Reclosable Fasteners are the easy
alternative to traditional fastening methods such as screws, nuts or bolts.
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Brochure
New 3M Dual Lock Brochure2 (PDF, 4.3MB)
Brochures
3M™ Dual Lock™ Rreclosable Fasteners (PDF, 3.4MB)
Adhesives and Tapes Design Guide (PDF, 12.3MB)
Bulletin
Dual Lock™ Reclosable Fasteners Att/Pres Sens Adh or
Heat Bnd (PDF, 32.0KB)
Dual Lock™ Reclosable Fastener w/Acrylic Foam (PDF,
308.1KB)
Dual Lock Reclosable Fasteners - Roll Goods Design
Criteria (PDF, 29.4KB)
Catalogs
2017 IATD MRO Catalog (PDF, 65.7MB)
3M Recloslable Fastener Brochure HR (PDF, 17.0MB)
Features\Benefits
3M™ Dual Lock™ Reclosable Fasteners - Markets
(MP4, 27.3MB)
3M Dual Lock Overview Video (MP4, 23.8MB)
Product Selection Guides
3M™ Reclosable Fasteners Design Selection Guide
(PDF, 1.3MB)
Product Single Image
Futuro™ Codera Comfort Lift L (JPEG, 154.7KB)
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★★★★★
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