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Description for 3M Double Coated Tape 9490LE
It provides high bond strength to most surfaces, including many low surface energy plastics such as polypropylene and powder coated paints. The acrylic adhesive also provides excellent adhesion to surfaces contaminated lightly with oil typically used with machine parts.Chemical Resistance Exceptional, Chemical Resistance: Very Good Application Type Bond 1 Part or 2 Part 1-Part Material Form Tape Substrate A variety of Fabric materials, Low surface energy plastics, Polypropylene, Stainless Steel, A variety of foam materials, Low surface energy plastics, ABS, Graphic attachment of low surface energy Industry Foam attachment for electronic assemblies, Graphic attachment of high surface energy, Machine Parts, Nameplates, Graphic attachment of low surface energy Manufacturer 3M Chemistry Acrylic adhesive, Laminating Cure Method Pressure Sensitive Application Temperature (°F) 70 to 100 Color Tan Total Thickness (mm) 0.170 Double Sided Double Coated Water Immersion Chemical Resistance: Immersion in water has no appreciable effect High Temperature Resistance (°C) 149, 93, 70 Low Temperature Resistance (°C) -29, 23 Key Specifications TSCA Tape Backing/Carrier Clear PET3 -
Technical Data for 3M Double Coated Tape 9490LE
Overview
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Chemical Resistance
- Chemical Resistance - Exceptional
- Chemical Resistance : Relative Solvent Resistance - Very Good
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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
- Tape
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Substrate
- Foam - A variety of foam materials
- Low Surface Energy - Graphic attachment of low surface energy, Low surface energy plastics
- Plastic - Low surface energy plastics
- Polypropylene
- ABS
- Fabric - A variety of Fabric materials
- Stainless Steel
- Other - Powder coated paints, Most surfaces, Surfaces contaminated lightly with oil
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Industry
- Sign - Nameplates
- Electronics - Foam attachment for electronic assemblies
- Machinery - Machine Parts
- Printing and Graphics - Graphic attachment of high surface energy, Graphic attachment of low surface energy
- Other - Decorative parts
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Chemistry
- Acrylic - Acrylic adhesive
- Other - Laminating
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Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
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Color
- Brown - Tan
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Key Specifications
- TSCA (Toxic Substances Control Act) - TSCA
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Tape Backing/Carrier
- Film Single Coated - Clear PET3
Specifications
Cure Specs
Application Temperature (°F) 70 to 100 Bond Strength
General Bond Strength (psi) High, Excellent adhesion Peel Strength (piw) 25/60 (Oz./in.), 125/140 (Oz./in.), 125/160 (Oz./in.), 135 (Oz./in.), 155 (Oz./in.) Test Method Shear Strength (psi) Good, 1000 (grams), 500 (grams) Test Method Tape Properties
Total Thickness (mm) 0.170 Double Sided Double Coated Material Resistance
UV Resistance UV Resistance: High Temperature Resistance (°C) 149, 93, 70 Test Method Low Temperature Resistance (°C) -29, 23 Test Method Moisture/Humidity Resistance Humidity Resistance, Moisture Resistant Conductivity
Dielectric Strength (V/mil) 1,025, 5700 (volts) Test Method Business Information
Shelf Life Details Store in original cartons at 70°F (21°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) 70 Shelf Life Type From date of manufacture Shelf Life (mon) 24 -
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Best Practices for 3M Double Coated Tape 9490LE
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Surface Preparation
To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Some typical surface cleaning solvents are isopropyl alcohol or heptane.*
*Note: Carefully read and follow the manufacturer’s precautions and directions for use when working with solvents. These cleaning recommendations may not be compliant with the rules of certain Air Quality Management Districts in California
consult applicable rules before use.
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Application
Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure helps develop better adhesive contact and improves bond strength.
Ideal tape application temperature range is 70°F to 100°F (21°C to 38°C). Initial tape application to surfaces at temperatures below 50°F (10°C) is not recommended because the adhesive becomes too firm to adhere readily. However, once properly applied, low temperature holding is generally satisfactory.
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Peel Strength Test Methods
Peel Strength | Type | Substrate | Test Time | Test Temperature | Test Method |
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25/60 (Oz./in.) | 90° | Stainless steel | 15 min | 20 to 25°C RT | ASTM D3330 - (FS/BS), technical information and data should be considered representative or typical only and should not be used for specification purposes. |
125/140 (Oz./in.) | 90° | Stainless steel | 4,320 min | 20 to 25°C RT | ASTM D3330 , (FS/BS), technical information and data should be considered representative or typical only and should not be used for specification purposes. |
125/160 (Oz./in.) | 90° | Stainless steel | 4,320 min | 158°C | ASTM D3330 , (FS/BS), technical information and data should be considered representative or typical only and should not be used for specification purposes. |
135 (Oz./in.) | 180° | 2 mil Al foil | 4,320 min | D3330, technical information and data should be considered representative or typical only and should not be used for specification purposes. | |
155 (Oz./in.) | 180° | 2 mil Al foil | 4,320 min | ASTM D3330 -Backside, technical information and data should be considered representative or typical only and should not be used for specification purposes. |
Shear Strength Test Methods
Shear Strength | Test Time | Test Temperature | Test Method |
---|---|---|---|
Good | |||
1000 (grams) | >600,000 sec | 22°C | ASTM D3654 modified - (.5 inch2 sample size), technical information and data should be considered representative or typical only and should not be used for specification purposes. |
500 (grams) | >600,000 sec | 70°C | ASTM D3654 modified - (.5 inch2 sample size), technical information and data should be considered representative or typical only and should not be used for specification purposes. |
High Temperature Resistance Test Methods
High Temperature Resistance | Test Method |
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149°C | Relative High Temperature Operating , Long Term (days, weeks) |
93°C | Relative High Temperature Operating, Short Term |
70°C | Cycling Resistance, 4 hours |
Low Temperature Resistance Test Methods
Low Temperature Resistance | Test Method |
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-29°C | Cycling Resistance, 4 hours |
23°C | Cycling Resistance, 4 hours |
Dielectric Strength Test Methods
Dielectric Strength | Test Method |
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1,025 V/mil | |
5700 (volts) | Breakdown Voltage |