• Description for 3M SJ3541

    Offers advanced 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, Fabric, Polyethylene, Rigid Vinyl, Polystyrene, Glass, Bare and Painted Metal, Paper, Plastics, Polycarbonate, Polypropylene, Sealed Wood
    Industry Attaching accessories to computer monitors, Window valences
    Manufacturer 3M
    Chemistry Polypropylene, Synthetic Rubber, Polyethylene
    Cure Method Pressure-Sensitive
    Color Black
  • Technical Data for 3M SJ3541

    Overview
    • Application Type
      • Bumpons
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Strip
    • Substrate
      • Glass
      • Metal - Bare and Painted Metal
      • Plastic - Plastics
      • Acrylic (PMMA) - Acrylic
      • Polyethylene (LDPE, HDPE) - Polyethylene
      • Vinyl - Rigid Vinyl
      • Polystyrene (PS) - Polystyrene
      • Polycarbonate
      • Polypropylene
      • Wood - Sealed Wood
      • Fabric
      • Paper
      • Other - Rigid Substrates, Powder Coated Paints, Cardboard
    • Industry
      • Storage & Graphics - Attaching accessories to computer monitors
      • Industrial - Decorative trim attachment
      • 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
    • Chemistry
      • Synthetic Rubber
      • Other - Polypropylene, Polyethylene
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure-Sensitive
    • Color
      • Black
    • Brand
      • Bumpon
    Specifications
    Bond Strength
    General Bond Strength (psi) Maximum Test Method
    Peel Strength (piw) 5.4 (Pounds/inch), 1.4 (Pounds/inch) Test Method
    Shear Strength (psi) 43 (lbsF/sq inch), 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2) Test Method
    Cleavage Strength (psi) 30 (pounds/inch) Test Method
    Tensile Strength (psi) 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), 77.5 (grams/cm2), 40, 66 Test Method
    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.
    Shelf Life Temperature (°F) 72
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 18
  • Best Practices for 3M SJ3541

    *See Terms of Use Below

    1. Design

      As a general rule, four square inches of fastener area per pound of static load to be supported is suggested as a starting point for evaluation. More or less area may be needed depending on specific conditions or end use applications.

    2. 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.

      Note: Be sure to follow all government regulations and the manufacturer’s precautions and directions for use when using solvents or other cleaning methods

    3. Application

      The fasteners and substrate surfaces should have equilibrated for a minimum of 1 hour at temperatures of 68°F (20°C) or greater before application.

      After the substrate has been cleaned and dried, the liner is removed from the fastener’s adhesive and without touching the adhesive, the fastener’s adhesive is applied to the surface using light finger pressure. The fastener can then be rolled down, to increase contact of the adhesive with the substrate’s surface, by one of two methods. Extra care must be exercised when rolling down 3M™Dual Lock™Reclosable Fasteners to prevent bending of the stems which can compromise the closure strength. The following methods allow adequate pressure to be applied to the Dual Lock without damaging the stems.

      The first method uses a hand roller, with the roller wheel covered with a Type 170 Dual Lock reclosable fastener such as 3M™Dual Lock™Reclosable Fastener SJ3542. The Dual Lock covered roller is rolled over the Dual Lock applied to the substrate, engaging and disengaging the two Dual Lock pieces while being rolled down.

      The second method consists of engaging a strip of plainback Dual Lock Type 170, such as 3M™Dual Lock™Reclosable Fasteners SJ3442 or SJ3742 to the previously attached adhesive backed Dual Lock. The backside of the plainback material can now be rolled down using a rubber roller, with no Dual Lock on the roller. This will fully engage the Dual Lock. After rolling down three times in each direction, the strip of plainback Dual Lock can be removed and used to roll down the next piece of Dual Lock in a similar manner.

    4. 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 SJ3541

    *See Terms of Use Below

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Shear Strength Test Methods
Shear Strength Type Substrate Test Time Test Temperature Test Humidity Test Method
43 (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 2,820 sec 70°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
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 38°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 49°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 60°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 70°C 50 % Holds minimum 1.1 #/in2 for indicated time and temperature
40 psi Dynamic Tensile Strength Rigid to Rigid Substrates 22°C 50 % Engagement Strength
66 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.
Peel Strength Test Methods
Peel Strength Type Substrate Test Temperature Test Humidity Test Method
5.4 (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
1.4 (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
Cleavage Strength Test Methods
Cleavage Strength Substrate Test Temperature Test Humidity Test Method
30 (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
General Bond Strength Test Methods
General Bond Strength Cure Time
Maximum 1,440 min