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Description for 3M 4318
Adhere to a variety of substrates, including latex-painted wood, lacquered wood, enameled steel, glass, aluminum, stainless steel, acrylic, ABS, and PVC (non-plasticized) as tape adhesion is typically satisfactory within 20 minutes and continues to build with additional time.Chemical Resistance Acetone, Chemical Resistance: Solvent resistance, Chemical Resistance: Fluid Resistance: Soapy Water Resistance, Ammonia Cleaner, Chemical Resistance: MEK, Engine Oil, Gasoline, JP-4 (jet fuel), Mineral Spirits Application Type Bond, Seal 1 Part or 2 Part 1-Part Material Form Foam Tape Substrate Acrylic, Aluminum, Glass, PVC (non-plasticized), Enameled steel, Latex-painted wood, Stainless Steel, ABS, Lacquered wood Industry Printers, Automotive dash boards, Keyboards, Recessed lighting seal, Computers, Window seal, Door seal, Aircraft lights, Aircraft lights Manufacturer 3M Chemistry Acrylic, Urethane Cure Method Pressure Sensitive Application Temperature (°F) 70 to 100 Color Charcoal grey Aging Resistance Excellent Aging resistance High Temperature Resistance (°C) 66, 121 Low Temperature Resistance (°C) -29 Density (g/cm³) Low, 2 (lb/cu ft) Key Specifications Meets F.A.R requirement -
Technical Data for 3M 4318
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Soapy Water Resistance
- Chemical Resistance - Acetone, Ammonia Cleaner, Engine Oil, Gasoline, JP-4 (jet fuel), Mineral Spirits
- Chemical Resistance : Relative Solvent Resistance - MEK, Solvent resistance
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1 Part or 2 Part
- 1-Part
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Material Form
- Tape - Foam Tape
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Substrate
- Glass
- Aluminum
- Steel - Enameled steel
- Acrylic (PMMA) - Acrylic
- Polyvinyl chloride (PVC) - PVC (non-plasticized)
- ABS
- Wood - Latex-painted wood, Lacquered wood
- Stainless Steel
- Other - Variety of substrates
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Industry
- Lighting - Recessed lighting seal, Aircraft lights
- Keyboards
- Storage & Graphics - Computers
- Automotive - Automotive dash boards
- Aircraft - Aircraft lights
- Electronics - Printers
- Industrial
- Construction Window - Window seal
- Construction Door - Door seal
- Other - Cabinet seal
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Chemistry
- Acrylic
- Polyurethane - Urethane
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Application Method
- Contact
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Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
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Color
- Gray - Charcoal grey
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Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - Meets F.A.R requirement
Specifications
Cure Specs
Application Temperature (°F) 70 to 100 Bond Strength
Tensile Strength (psi) 25 Test Method Material Resistance
Aging Resistance Excellent Aging resistance UV Resistance Excellent High Temperature Resistance (°C) 66, 121 Low Temperature Resistance (°C) -29 Conductivity
Dielectric Strength (V/mil) 20 Test Method Thermal Conductivity (W/m°K) 0.52 Test Method Surface Resistivity (O) 6e12 (ohms/sq), 1e13 (ohms/sq) Test Method Hardness
Elongation (%) 125 Test Method Shore OO Hardness 10 Test Method Other Properties
Density (g/cm³) Low, 2 (lb/cu ft) Test Method Business Information
Shelf Life Details Storage: Store in the original cartons at 60-80°F (15-27°C) and 50% relative humidity. Shelf Life Temperature (°F) 140 to 176 Shelf Life Type From date of manufacture Shelf Life (mon) 18 -
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Best Practices for 3M 4318
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Surface Preparation
To obtain optimum adhesion, the bonding surface must be clean, dry, and well unified. Some typical surface cleaning solvents are isopropyl alcohol and heptane.
Be sure to follow the solvent manufacturer’s precautions and directions for use when handling solvents.
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Application
Bond strength is dependent upon the amount of adhesive-to-surface contact. Firm application pressure develops better adhesive contact and helps improve bond strength.
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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Tensile Strength Test Methods
Tensile Strength | Test Method |
---|---|
25 psi | ASTM D-3574, Die "A" |
Dielectric Strength Test Methods
Dielectric Strength | Test Method |
---|---|
20 V/mil | ASTM D-149 |
Surface Resistivity Test Methods
Surface Resistivity | Test Method |
---|---|
6e12 (ohms/sq) | Non-adhesive side, ASTM D-257 |
1e13 (ohms/sq) | Adhesive side, ASTM D-257 |
Thermal Conductivity Test Methods
Thermal Conductivity | Test Method |
---|---|
0.52 W/m°K | ASTM C-518 |
Elongation Test Methods
Elongation | Test Method |
---|---|
125 % | ASTM D-3574, Die “A” |
Shore OO Hardness Test Methods
Shore OO Hardness | Shore Hardness Test Method |
---|---|
10 | ASTM D-2240, Foam with adhesive |
Density Test Methods
Density | Test Method |
---|---|
Low | |
2 (lb/cu ft) | ASTM D-3574, Foam with adhesive |