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  • 3M™ Dual Lock™ Reclosable Fastener SJ3872
  • 3M™ Dual Lock™ Reclosable Fastener SJ3872

    3M Product Number SJ3872
    Products
    • Black, interlocking mushroom-shaped heads (170 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times
    • Mates with Type 250 or Type 400 stem densities to provide different strength combinations
    • Black, modified acrylic, very conformable foam tape bonds well to a variety of substrates including metals, powder-coated paints and plastics such as acrylics, polycarbonate and ABS
    • Strong fastener secures with an audible snap, verifying closure
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    Overall Width (Imperial)
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    Specifications
    Attribute Name
    Value
    Adhesive Type
    Modified Acrylic Adhesive
    Brand
    Dual Lock™
    Closure Life
    1000
    Color
    Black, Black
    Engaged Thickness (Imperial)
    0.24 in
    Flame Retardant
    No
    Indoor/Outdoor
    Both
    Industries
    Construction, Electronics, Furniture, General Industrial, Medical, Military & Government, MRO, Packaging, Retail, Specialty Vehicle, Transportation
    Low Profile
    No
    Maximum Operating Temperature (Celsius)
    82 Degree Celsius
    Maximum Operating Temperature (Fahrenheit)
    180 Degree Fahrenheit
    Overall Length (Imperial)
    45 yd
    Overall Length (Metric)
    41.14 m
    Overall Width (Imperial)
    0.75 in, 2 in
    Overall Width (Metric)
    19.05 mm, 50.8 mm
    Primary Liner
    Red Polyethylene
    Primary Liner Thickness (Imperial)
    5 mil
    Product Form
    P1400/R3500
    Stem Density
    170
    Volatile Organic Compounds (VOCs)
    See Safety Data Sheet, Regulatory Data Sheet
    Details
    • Black, interlocking mushroom-shaped heads (170 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times
    • Mates with Type 250 or Type 400 stem densities to provide different strength combinations
    • Black, modified acrylic, very conformable foam tape bonds well to a variety of substrates including metals, powder-coated paints 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 140°F (60°C)
    • Best suited for indoor and outdoor use

    3M™ Dual Lock™ Reclosable Fastener SJ3872 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) that bonds to a variety of substrates including metals, powder-coated paints and plastics such as acrylics, polycarbonate and ABS.

    Durable and secure, 3M™ Dual Lock™ Reclosable Fastener SJ3872 has exceptional strength through its interlocking mushroom-shaped heads (170 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products.
    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 SJ3872 has exceptional strength through its interlocking mushroom-shaped heads (170 stem density per square inch), providing up to 5X the tensile strength of typical hook-and-loop products. We designed this fastener with a black, modified acrylic, very conformable foam tape protected by a removable, film liner. This solid pressure sensitive foam tape features a strong, durable bond that is chemical and UV resistant. With 3M™ Dual Lock™ Reclosable Fastener SJ3872, there is no need for any drilling, screwing or sewing tools which makes for quick installation.

    Recommended Applications:
    • Access panels
    • Graphic attachment
    • General industrial attachment
    • Small components

    Design Flexibility
    3M™ Dual Lock™ Reclosable Fastener SJ3872 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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