• Description for 3M SJ3572

    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

    Brand Bumpon
    Application Type Bumpons
    1 Part or 2 Part 1 Part
    Material Form Strip
    Substrate Acrylic, Glass, Bare Metals, ABS, Polycarbonate, Sealed Wood, Polystyrene, Rigid Vinyl, Painted Metals
    Manufacturer 3M
    Chemistry Acrylic PSA
    Cure Method Pressure-Sensitive
    Color Black, Beige, White
    Chemical Resistance Chemical
    High Temperature Resistance (°C) 93
    Low Temperature Resistance (°C) -29
    Key Specifications CID (United States Government Commercial Item Description): A-A-55126A: Type II, Class 1, Mil-Spec (United States Military Standard): F-21840: MIL-F-21840, Type IA, II and III Class 3; CID A-A-55126A, Type II, Class 1
  • Technical Data for 3M SJ3572

    Overview
    • Application Type
      • Bumpons
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Strip
    • Substrate
    • Chemistry
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure-Sensitive
    • Color
      • Black
      • Brown - Beige
      • White
    • Key Specifications
      • CID (United States Government Commercial Item Description): A-A-55126A: Type II, Class 1
      • Mil-Spec (United States Military Standard): F-21840: Type IA, II and III Class 3 - MIL-F-21840, Type IA, II and III Class 3; CID A-A-55126A, Type II, Class 1
    • Brand
      • Bumpon
    Specifications
    Bond Strength
    Peel Strength (piw) 1.8 (Pounds/inch), 1.3 (Pounds/inch), 2.6 (lb./inch) Test Method
    Shear Strength (psi) 4.8 (lbsf/sq inch), 10 (pounds force/square inch), 2.2 (#/in2), 2.2 (#/in2), 2.2 (#/in2) Test Method
    Tensile Strength (psi) 2, 2, 2, <1, 8, 8, 8 Test Method
    Material Resistance
    Chemical Resistance Chemical
    Environmental Resistance Environmental resistance
    High Temperature Resistance (°C) 93
    Low Temperature Resistance (°C) -29
    Business Information
    Shelf Life Details Shelf Life when stored in original packaging at 72°F (22°C) and 50% RH
    Shelf Life Temperature (°F) 72
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 24
  • Best Practices for 3M SJ3572

    *See Terms of Use Below

    1. Surface Preparation

      Highly textured surfaces may reduce the ultimate adhesion levels and care should be given to minimize the surface texture or roughness. Adhesive backed fasteners should be applied to surfaces that are clean, dry and free of oil, grease, dust, mold release agents or surface contaminants that could reduce the adhesion. It is recommended to remove any surface contaminants that may reduce adhesion by using a method suited for the type and quantity of surface contaminants present. Isopropal alcohol is a good general use solvent for cleaning contaminants from surfaces for example.

      In exceptional cases, especially when removing silicone mold release agents or on rough, porous surfaces, it may be necessary to lightly abrade the surface, use an adhesion promoter, or surface sealer to optimize the adhesive bond to the substrate. The selection of abrasion, priming or sealing methods will depend upon the substrates and the environmental conditions the product will be exposed to during use.

    2. Application

      Attachment Procedure: To obtain optimum bond to any surface, both the fasteners and the target surfaces should have equilibrated for a minimum of one hour at temperatures between 68°F (20°C) to 100°F (38°C) before application. The liner protecting the adhesive is removed and preferably without touching the adhesive, the fastener is applied to the substrate. Exposure of the adhesive to ambient conditions without the protective liner, before applying to the surface, should be minimized as initial adhesive tack may decrease. Flexible materials should be lying on a hard flat surface so as to permit uniform adhesive contact with the surface. Use of a rubber hand roller, press platen or similar device is recommended to ensure full adhesive contact or wetout with the substrate surface. Approximately 4.5 pounds of force per square inch, (310 grams per square centimeter) is recommended to increase adhesive contact, improving bond strength. For all adhesive applications, it is important to ensure that the edges are rolled down to reduce the chance of edge lifting.

      Plain backed: The plain backed 3M hook and loop fasteners are most commonly sewn into their applications. Liquid or hot melt adhesives and staples are other forms of attachment that can be utilized.

      Sewing: Although the selvedge edge was initially developed for stitching on, customers often find that they get better anchorage when stitching through the 3M hook and loop portions of the fastener – this may be application dependant. The type of thread and stitch type is also best determined based on individual application, however, the fastener should be stitched on all edges for the best seam strength. Typically, special machine adjustments are not necessary when using our 3M hook and loop fasteners.

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Peel Strength Test Methods
Peel Strength Type Substrate Test Method
1.8 (Pounds/inch) 90° Peel Strenth Flexible to Rigid Flexible to Rigid, width
1.3 (Pounds/inch) T-Peel Strength Flexible to Flexible width
2.6 (lb./inch) Dynamic T-Peel Strength ASTM D5170, width
Tensile Strength Test Methods
Tensile Strength Type Test Time Test Temperature Test Humidity Test Method
2 psi Static Tensile Strength 100 min 70°C Holds 2.2#/in2 (155 grams/cm2) for indicated time and temperature
2 psi Static Tensile Strength 100 min 93°C Holds 2.2#/in2 (155 grams/cm2) for indicated time and temperature
2 psi Static Tensile Strength 100 min 38°C 100 % Holds 2.2#/in2 (155 grams/cm2) for indicated time and temperature
<1 psi Dynamic Tensile Strength Engagement Stength
8 psi Dynamic Tensile Strength Disengagement 3M™ Scotchmate™ Reclosable Fasteners SJ3571/72 and 3M™ Dual Lock™ SJ3560 are engaged with firm pressure and disengaged, peeled or cleaved at the rate of 12 inches (305 mm) per minute.
8 psi Dynamic Tensile Strength closure
8 psi Dynamic Tensile Strength
Shear Strength Test Methods
Shear Strength Type Test Time Test Temperature Test Humidity Test Method
4.8 (lbsf/sq inch) Dynamic shear strength (1" x 1" overlap) M™ Scotchmate™ Reclosable Fasteners SJ3571/72 and 3M™ Dual Lock™ SJ3560 are engaged with firm ressure and disengaged, peeled or cleaved at the rate of 12 inches (305 mm) per minute.
10 (pounds force/square inch) Dynamic shear strength ASTM D5169
2.2 (#/in2) Static Shear Strength 600,000 sec 70°C Holds 2.2#/in2 (155 grams/cm2) for indicated time and temperature
2.2 (#/in2) Static Shear Strength 600,000 sec 93°C Holds 2.2#/in2 (155 grams/cm2) for indicated time and temperature
2.2 (#/in2) Static Shear Strength 600,000 sec 38°C 100 % Holds 2.2#/in2 (155 grams/cm2) for indicated time and temperature