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Description for 3M SJ4570
It can replace conventional fasteners, such as screws, clips, rivets, snaps, hook and loop and bolts in many applications where access or repositioning is needed.Brand Bumpon Application Type Bond 1 Part or 2 Part 1-Part Material Form Bumpons Substrate Acrylic, Aluminum, Structural Composites, Glass, Bare Metals, Many Plastics, Polycarbonate, Polypropylene, Sealed Wood, Stainless Steel, Fiberglass, Polystyrene, Rigid Vinyl, Foam, ABS, Painted Metals, Metal Industry Small electronic devices, Trade show graphics, Carpet, Electronics Manufacturer 3M Chemistry 300 LSE (Acrylic), Polypropylene Cure Method Pressure Sensitive Color Clear High Temperature Resistance (°C) <70 Low Temperature Resistance (°C) -29 -
Technical Data for 3M SJ4570
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
- Fiberglass
- Foam
- Glass
- Metal - Bare Metals, Painted Metals
- Aluminum
- Plastic - Many Plastics
- Acrylic (PMMA) - Acrylic
- Polycarbonate
- Polypropylene
- Polystyrene (PS) - Polystyrene
- Vinyl - Rigid Vinyl
- ABS
- Wood - Sealed Wood
- Composites - Structural Composites
- Stainless Steel
- Other - Wide variety of materials, Powder Coated Paints, surfaces lightly contaminated with oil
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Industry
- Electronics - Small electronic devices
- Industrial
- Printing and Graphics - Trade show graphics
- Construction - Ceiling tiles
- Carpet
- Other - Access panels, POP (point of purchase), Seat cushions, Wall panels
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Chemistry
- Acrylic - 300 LSE (Acrylic)
- Other - Polypropylene
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Application Method
- Contact
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Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
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Color
- Clear / Transparent - Clear
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Brand
- Bumpon
Specifications
Bond Strength
Peel Strength (piw) 6.0 (Lbs/inch), 8.0 (Lbs/inch), 7.0 (Lbs/inch), 5.0 (Lbs/inch), 3.5 (Lbs/inch), 7.0 (Lbs/inch), 5.0 (Lbs/inch), 6.0 (Lbs/inch), 6.0 (Lbs/inch), 8.0 (Lbs/inch), 5.0 (Lbs/inch), 6.0 (Lbs/inch), 1.2 (Lbs/inch) Test Method Shear Strength (psi) 32, 2, 2, 2, 1, 1, 1 Test Method Tensile Strength (psi) 2, 2, 2, 1, 1, 1, 26, 42 Test Method Material Resistance
High Temperature Resistance (°C) <70 Low Temperature Resistance (°C) -29 Hardness
Flexibility Flexible Business Information
Shelf Life Details Storage: Store in original package at 72°F (22°C) and 50% relative humidity.;If stored under proper conditions, product retains its performance and properties for two years from date of manufacture. Shelf Life Temperature (°F) 72 Shelf Life Type From date of manufacture. Shelf Life (mon) 24 -
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Best Practices for 3M SJ4570
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Design
As a general rule, four square inches of fastener area per pound (57.3 square centimeters per kilogram) 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
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 should be cleaned with an appropriate cleaning method for the customers substrate(s) and surface contaminant(s) and amount that need to be removed.
NOTE: Be sure to follow the manufacturer’s precautions and directions for use when using solvents, or other cleaning method
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Application
There are typically 6 different methods for attaching Dual Lock low profile reclosable fasteners to various surfaces. The most important technique for Dual Lock low profile reclosable fastener SJ4570 is summarized below. For complete details on techniques and options for attaching 3M™ Scotchmate™ or 3M™ Dual Lock™ Reclosable Fasteners please see the technical bulletin “Attachment of 3M™ Scotchmate™ and 3M™ Dual Lock™ Reclosable Fasteners.”
Pressure Sensitive Adhesive attachment: 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.
The liner is removed and without touching the adhesive, the fastener is applied to the surface using firm roller pressure to help ensure complete adhesive contact to the substrate. The pressure-sensitive adhesive bonds on contact and parts can be handled immediately. Adhesive bond strength increases with time, pressure and temperature.
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Curing
A minimum of twenty four (24) hours dwell is recommended before applying a load or disengaging. Recommended time to achieve maximum bond strength is 72 hours (3 days)
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Clean-Up
The substrate should be cleaned with an appropriate cleaning method for the customers substrate(s) and surface contaminant(s) and amount that need to be removed.
NOTE: Be sure to follow the manufacturer’s precautions and directions for use when using solvents, or other cleaning method.
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Peel Strength Test Methods
Peel Strength | Type | Substrate | Test Time | Test Temperature | Test Humidity | Test Method |
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6.0 (Lbs/inch) | 90° Peel Strength | Stainless Steel | 1.00 min | Peeled at the rate of 12 inches (305 mm) per minute., width, initial (1 minute dwell) | ||
8.0 (Lbs/inch) | 90° Peel Strength | Stainless Steel | 10,080 min | 22°C | 50 % | Peeled at the rate of 12 inches (305 mm) per minute., width, after 1 week at 72°F/50% relative humidity |
7.0 (Lbs/inch) | 90° Peel Strength | Stainless Steel | 10,080 min | 70°C | Peeled at the rate of 12 inches (305 mm) per minute., width, after 1 week at 158°F | |
5.0 (Lbs/inch) | 90° Peel Strength | Polypropylene | 10,080 min | 37°C | 100 % | Peeled at the rate of 12 inches (305 mm) per minute., width, after 1 week at 100°F/100% relative humidity |
3.5 (Lbs/inch) | 90° Peel Strength | Polypropylene | 1.00 min | Peeled at the rate of 12 inches (305 mm) per minute., width, initial (1 minute dwell) | ||
7.0 (Lbs/inch) | 90° Peel Strength | Polypropylene | 10,080 min | 22°C | 50 % | Peeled at the rate of 12 inches (305 mm) per minute., width, after 1 week at 72°F/50% relative humidity |
5.0 (Lbs/inch) | 90° Peel Strength | ABS | 10,080 min | 70°C | Peeled at the rate of 12 inches (305 mm) per minute., width, after 1 week at 158°F | |
6.0 (Lbs/inch) | 90° Peel Strength | ABS | 10,080 min | 37°C | 100 % | Peeled at the rate of 12 inches (305 mm) per minute., width, after 1 week at 100°F/100% relative humidity |
6.0 (Lbs/inch) | 90° Peel Strength | ABS | 1.00 min | Peeled at the rate of 12 inches (305 mm) per minute., width, initial (1 minute dwell) | ||
8.0 (Lbs/inch) | 90° Peel Strength | 22°C | 50 % | Peeled at the rate of 12 inches (305 mm) per minute., Width, after 1 week at 72°F/50% relative humidity | ||
5.0 (Lbs/inch) | 90° Peel Strength | 10,080 min | 70°C | Peeled at the rate of 12 inches (305 mm) per minute., Width, after 1 week at 158°F | ||
6.0 (Lbs/inch) | 90° Peel Strength | 10,080 min | 38°C | 100 % | Peeled at the rate of 12 inches (305 mm) per minute., Width, after 1 week at 100°F/100% relative humidity | |
1.2 (Lbs/inch) | T-Peel Strength | 90° Angle, width |
Tensile Strength Test Methods
Tensile Strength | Type | Substrate | Test Time | Test Temperature | Test Humidity | Test Method |
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2 psi | Static Tensile Strength | Aluminum | 10,000 min | -29°C | ||
2 psi | Static Tensile Strength | Aluminum | 10,000 min | 22°C | 50 % | |
2 psi | Static Tensile Strength | Aluminum | 70°C | |||
1 psi | Static Tensile Strength | Aluminum | 10,000 min | -29°C | 50 % | |
1 psi | Static Tensile Strength | Aluminum | 10,000 min | 22°C | ||
1 psi | Static Tensile Strength | Aluminum | 10,000 min | 70°C | ||
26 psi | Dynamic Tensile Strength | Engagement | ||||
42 psi | Dynamic Tensile Strength | Disengagement |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Time | Test Temperature | Test Humidity | Test Method |
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32 psi | Dynamic shear strength | 1" x 1" overlap | ||||
2 psi | Static shear strength | Stainless Steel | 600,000 sec | -29°C | ||
2 psi | Static shear strength | Stainless Steel | 600,000 sec | 22°C | 50 % | |
2 psi | Static shear strength | Stainless Steel | 70°C | |||
1 psi | Static shear strength | Stainless Steel | 600,000 sec | -29°C | 50 % | |
1 psi | Static shear strength | Stainless Steel | 600,000 sec | 22°C | ||
1 psi | Static shear strength | Stainless Steel | 600,000 sec | 70°C |