• Description for 3M SJ3522

    Hook and Loop Fasteners offer closure alternatives to zippers, screws, snaps, hooks, bolts and more. They offer greater design flexibility, faster product assembly, smoother and cleaner exterior surfaces and improved product performance in many applications.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Strip
    Substrate Plastic: Acrylic, Glass, Bare and painted Metal, Nylon, plasticized materials, Polycarbonate, Polyester, wood, Plastic: Polystyrene, Flexible vinyl, textured plastics, Sealed Wood, Rigid Vinyl, ABS, Plasticized plastics
    Manufacturer 3M
    Chemistry Acrylic, nylon 6
    Cure Method Pressure Sensitive
    Color Black, Beige, White
    Other Resistance Plasticizer Resistance
    Key Specifications Mil-Spec (United States Military Standard): F-21840G: MIL-F-21840G, Type II Class 1
  • Technical Data

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  • Best Practices

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Cleavage Strength Test Methods
Cleavage Strength Substrate Test Method
9.6 (pounds/inch) Rigid to Rigid Substrates System performance tests are determined by measuring the performance of the entire mated reclosable fastener system consisting of two non-anodized aluminum plates joined together with the indicated fasteners. The “T” peel test only measures the closure performance per ASTM D5170 and was not adhered to aluminum panels. The 90° peel has one of the mated fasteners attached to a non-anodized aluminum panel, while the other mated fastener is not attached to an adherend and is disengaged at 90° angle during the peel., 3M™ Scotchmate™ Reclosable Fasteners SJ3522 and SJ3523 and 3M™ Dual Lock™ Reclosable Fastener SJ3560 are engaged with firm pressure and disengaged, peeled or cleaved at the rate of 12 inches (305 mm) per minute., width
Peel Strength Test Methods
Peel Strength Type Test Method
2.6 (lb./inch width) Dynamic T-Peel Strength ASTM D5170
Tensile Strength Test Methods
Tensile Strength Type Substrate
8 psi Dynamic Tensile Strength
7.5 (lbF/sq. in) Dynamic Closure Tensile Strength Nylon
10 (lbF/sq. in) Dynamic Closure Tensile Strength Polyester
Shear Strength Test Methods
Shear Strength Type Substrate Test Method
10 psi Dynamic shear strength ASTM D5169
4.8 (lbF/sq. in) Dynamic Closure Shear strength Nylon
18 (lbF/sq. in) Dynamic Closure Shear strength Polyester