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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.Brand Bumpon Application Type Bond 1 Part or 2 Part 1-Part Material Form Bumpons Substrate Acrylic, Fabric, Glass, Bare and Painted Metal, Paper, Plastics, Polycarbonate, Polypropylene, Sealed Wood, Polystyrene, Polyethylene, Rigid Vinyl, Cardboard 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
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 1-Part
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Material Form
- Bumpons
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Substrate
- Glass
- Metal - Bare and Painted Metal
- Plastic - Plastics
- Acrylic (PMMA) - Acrylic
- Polycarbonate
- Polypropylene
- Polystyrene (PS) - Polystyrene
- Polyethylene (LDPE, HDPE) - Polyethylene
- Vinyl - Rigid Vinyl
- Wood - Sealed Wood
- Fabric
- Paper - Cardboard
- Other - Rigid Substrates, Powder Coated Paints
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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
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Chemistry
- Synthetic Rubber
- Other - Polypropylene, Polyethylene
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Application Method
- Contact
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Cure Method
- Pressure Sensitive (min) - Pressure-Sensitive
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Color
- Black
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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 -
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Best Practices for 3M SJ3541
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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.
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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
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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.
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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.
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Cleavage Strength Test Methods
Cleavage Strength | Substrate | Test Temperature | Test Humidity | Test Method |
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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 |
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Maximum | 1,440 min |
Peel Strength Test Methods
Peel Strength | Type | Substrate | Test Temperature | Test Humidity | Test Method |
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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 |
Tensile Strength Test Methods
Tensile Strength | Type | Substrate | Test Time | Test Temperature | Test Humidity | Test Method |
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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. |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Time | Test Temperature | Test Humidity | Test Method |
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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 |