3M Dual Lock Reclosable Fastener SJ3540 Datasheet 3M Dual Lock Reclosable Fastener SJ3540

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  • Description for 3M Dual Lock Reclosable Fastener SJ3540

    Positive locking, hidden fasteners designed for use in a variety of attachment solutions.

    *See Terms of Use Below

    Brand Bumpon
    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Bumpons
    Substrate Fabric, Glass, Bare and Painted Metal, Paper, Plastics, Polycarbonate, Polypropylene, Sealed Wood, Polystyrene, Polyethylene, Rigid Vinyl, Low surface energy
    Industry General purpose, Attaching accessories to computer monitors, Window valences
    Manufacturer 3M
    Chemistry Acrylic, Polypropylene, Synthetic Rubber, Polyethylene, Rubber based PSA foam backing, Non-woven
    Cure Method Pressure-Sensitive
    Color Black
    High Temperature Resistance (°C) 60
    Can Be Used In Conjunction With These Materials Epoxies, Hot melt, Liquid, Sealants

  • Technical Data for 3M Dual Lock Reclosable Fastener SJ3540

    *See Terms of Use Below

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Bumpons
    • Substrate
    • Industry
      • Storage & Graphics - Attaching accessories to computer monitors
      • Industrial - Decorative trim attachment
      • General Purpose
      • Construction Window - Window valences
      • Furniture / Wood-Working - Kick plates on office partitions
      • Other - Indoor applications, Access panels on exercise equipment, Interior signage, Decorative trim attachment, Use in a variety of attachment solutions
    • Chemistry
      • Synthetic Rubber
      • Acrylic
      • Other - Polypropylene, Polyethylene, Rubber based PSA foam backing, Non-woven
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure-Sensitive
    • Color
      • Black
    • Can Be Used In Conjunction With These Materials
      • Epoxies
      • Hot melts - Hot melt
      • Other - Liquid, Sealants
    • Brand
      • Bumpon
    Specifications
    Bond Strength
    General Bond Strength (psi) Maximum Test Method
    Peel Strength (piw) 6.1 (Pounds/inch), 4.1 (Pounds/inch), 1.2 N/cm width, 2.5 N/cm width, 3.3 N/cm width, 2.6 N/cm width, 2.6 N/cm width, 5.4 N/cm width, 8.1 N/cm width, 8.1 N/cm width Test Method
    Shear Strength (psi) 124 (lbsF/sq inch), 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), 7, 10, 10, 28 Test Method
    Cleavage Strength (psi) 14 (Pounds/inch), 21 N/cm width, 35 N/cm width, 42 N/cm width, 56 N/cm width Test Method
    Tensile Strength (psi) 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), <1, 35, 6, 10, 10, 15, 13, 13, 20, 20, 29 Test Method
    Material Resistance
    High Temperature Resistance (°C) 60
    Business Information
    Shelf Life Details Shelf life is from date of manufacture when stored in original packaging at 72°F (22°C) and 50% relative humidity., To obtain best performance, use this product within 18 months from date of manufacture.
    Shelf Life Temperature (°F) 72
    Shelf Life Type From date of manufacture, From date of manufacture
    Shelf Life (mon) 18, <18
    Not Good For
    Don't Use With Type 170 to 170, Type 400 to 400

  • Best Practices for 3M Dual Lock Reclosable Fastener SJ3540

    *See Terms of Use Below

    1. Surface Preparation

      Generally these adhesive backed fasteners should be applied to surfaces that are smooth, dry and free of oils, mold release agents or other surface contaminants.

      The substrate surface should be cleaned to remove any surface contaminants with an appropriate cleaning method for the customer’s substrate, type and quantity of surface contaminants that need to be removed.

    2. Application

      Ease of Assembly: Dual Lock fasteners can be used to attach components before they enter the final assembly plant, reducing the number of parts and the assembly time. No tools are required.

      Attachment Methods: The wide varieties of Dual Lock fasteners allow a design engineer exibility to be able use and attach Dual Lock to just about any substrate or application. Peel and stick pressure sensitive adhesive backed is quick and easy yet strong and secure. Non-woven backed can be used with a variety of adhesive choices such as hot melt, liquid, epoxies, sealants, etc. We have parts that can be attached with a screw or rivet

      rigid and plain backed for developing your own special device.

    3. Curing

      The pressure-sensitive adhesive bonds to the substrate on contact and parts can be handled immediately. Adhesive bond strength increases with time, pressure and temperature. A minimum of one hour dwell is recommended before applying a load or disengaging assembled parts. Recommended time to achieve maximum bond strength is 24 hours.

  • Comparable Materials for 3M Dual Lock Reclosable Fastener SJ3540

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Cleavage Strength Test Methods
Cleavage Strength Substrate Test Temperature Test Humidity Test Method
14 (Pounds/inch) Rigid to Rigid Substrates 22°C 1 % Dual Lock SJ3540, SJ3541, SJ3542 and Scotchmate SJ3527 were engaged with firm pressure and disengaged, at the rate of 12 inches (305 mm) per minute, width
21 N/cm width Type 170 to 250 Rigid backed from Rigid backed
35 N/cm width Type 170 to 400 Rigid backed from Rigid backed
42 N/cm width Type 250 to 250 Rigid backed from Rigid backed
56 N/cm width Type 250 to 400 Rigid backed from Rigid backed
General Bond Strength Test Methods
General Bond Strength Cure Time
Maximum 1,440 min
Peel Strength Test Methods
Peel Strength Type Substrate Test Temperature Test Humidity Test Method
6.1 (Pounds/inch) 90° Peel Strenth Flexible to Rigid 22°C 50 % Dual Lock SJ3540, SJ3541, SJ3542 and Scotchmate SJ3527 were engaged with firm pressure and disengaged, at the rate of 12 inches (305 mm) per minute, width
4.1 (Pounds/inch) T-Peel Strength Flexible to Flexible 22°C 50 % Dual Lock SJ3540, SJ3541, SJ3542 and Scotchmate SJ3527 were engaged with firm pressure and disengaged, at the rate of 12 inches (305 mm) per minute, width
1.2 N/cm width T-Peel Adhesion Type 170 to 250 Flexible from Flexible
2.5 N/cm width T-Peel Adhesion Type 170 to 400 Flexible from Flexible
3.3 N/cm width T-Peel Adhesion Type 250 to 250 Flexible from Flexible
2.6 N/cm width T-Peel Adhesion Type 250 to 400 Flexible from Flexible
2.6 N/cm width 90° Peel Adhesion Type 170 to 250 Flexible from Rigid
5.4 N/cm width 90° Peel Adhesion Type 170 to 400 Flexible from Rigid
8.1 N/cm width 90° Peel Adhesion Type 250 to 250 Flexible from Rigid
8.1 N/cm width 90° Peel Adhesion Type 250 to 400 Flexible from Rigid
Tensile Strength Test Methods
Tensile Strength Type Substrate Test Time Test Temperature Test Humidity Test Method
77.5 (grams/cm2) Static Tensile Strength Rigid to Rigid Substrates 20,000 min 100°C 100 % Holds minimum 1.1 #/in2 for indicated time and temperature
77.5 (grams/cm2) Static Tensile Strength Rigid to Rigid Substrates 20,000 min 120°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
77.5 (grams/cm2) Static Tensile Strength Rigid to Rigid Substrates 10,000 min 140°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
77.5 (grams/cm2) Static Tensile Strength Rigid to Rigid Substrates 1,000 min 158°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
<1 psi Dynamic Tensile Strength Rigid to Rigid Substrates 22°C 50 % Engagement Strength
35 psi Dynamic Tensile Strength Rigid to Rigid Substrates 22°C 50 % Disengagement, Dual Lock SJ3540, SJ3541, SJ3542 and Scotchmate SJ3527 were engaged with firm pressure and disengaged, at the rate of 12 inches (305 mm) per minute.
6 psi Dynamic Tensile (Engage) Type 170 to 250
10 psi Dynamic Tensile (Engage) Type 170 to 400
10 psi Dynamic Tensile (Engage) Type 250 to 250
15 psi Dynamic Tensile (Engage) Type 250 to 400
13 psi Dynamic Tensile (Engage) Low Profile to Low Profile
13 psi Dynamic Tensile (Disengage) Type 170 to 250
20 psi Dynamic Tensile (Disengage) Type 170 to 400
20 psi Dynamic Tensile (Disengage) Type 250 to 250
29 psi Dynamic Tensile (Disengage) Type 250 to 400
Shear Strength Test Methods
Shear Strength Type Substrate Test Time Test Temperature Test Humidity Test Method
124 (lbsF/sq inch) Dynamic shear strength Rigid to Rigid Substrates 22°C 50 % (1" x 1" overlap), Dual Lock SJ3540, SJ3541, SJ3542 and Scotchmate SJ3527 were engaged with firm pressure and disengaged, at the rate of 12 inches (305 mm) per minute.
77.5 (grams/cm2) Static shear strength Rigid to Rigid Substrates 600,000 sec 38°C 100 % Holds minimum 1.1 #/in2 for indicated time and temperature
77.5 (grams/cm2) Static shear strength Rigid to Rigid Substrates 600,000 sec 49°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
77.5 (grams/cm2) Static shear strength Rigid to Rigid Substrates 600,000 sec 60°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
77.5 (grams/cm2) Static shear strength Rigid to Rigid Substrates 60,000 sec 70°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
7 psi Dynamic Shear Type 170 to 250
10 psi Dynamic Shear Type 170 to 400
10 psi Dynamic Shear Type 250 to 250
28 psi Dynamic Shear Type 250 to 400