3M Single-Coated Urethane Foam Tape 4318 Datasheet 3M Single-Coated Urethane Foam Tape 4318

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  • Description for 3M Single-Coated Urethane Foam Tape 4318

    A conformable, grey, low-density with pressure-sensitive acrylic adhesive on one side. It will adhere to a variety of substrates, including latex-painted wood, lacquered wood, enameled steel, glass, aluminum, stainless steel,<br/>acrylic, ABS, and PVC (non-plasticized).

    *See Terms of Use Below

    Chemical Resistance Acetone, Chemical Resistance: Solvent resistance, Chemical Resistance: Fluid Resistance: Soapy Water Resistance, Seal out air, Ammonia Cleaner, Chemical Resistance: MEK, Engine Oil, Gasoline, JP-4 (jet fuel), Mineral Spirits
    Application Type Bond
    1 Part or 2 Part 1-Part
    Material Form Foam Tape
    Substrate Aluminum, Glass, ABS, PVC (non-plasticized), Enameled steel, Stainless Steel, Latex-painted wood, Acrylic, Lacquered wood
    Industry Printers, Recessed lighting seal, Automotive dash boards, Aircraft lights, Computers, Keyboards, Door seal, Window seal, Can be used to help cushion vibration in electronics, Aircraft lights, Can be used to help damp sound vibration in electronics, Can be used to help absorb vibration in electronics
    Manufacturer 3M
    Chemistry Acrylic adhesive
    Cure Method Pressure Sensitive
    Application Temperature (°F) 70 to 100
    Color Grey
    Single Sided Single coated
    Carrier Thickness (mm) 0.076
    Liner Thickness (mm) 0.080
    Total Thickness (mm) 3.200
    Tape Width (mm) 6 to 1,168
    Silicone/Silicone Paper Liner Type: Silicone treated paper liner
    Aging Resistance Excellent
    Fungus Resistance Mildew resistance, Mold resistance
    High Temperature Resistance (°C) 66, 121
    Low Temperature Resistance (°C) -29
    Other Resistance Seal out dust
    Conformable Conformable
    Compression Set (%) 5.000
    Density (g/cm³) Low, 0.032
    Key Specifications Meets F.A.R requirement, Registered to ISO 9001 standards
    Tape Backing/Carrier Urethane
  • Technical Data for 3M Single-Coated Urethane Foam Tape 4318

    Overview
    • Chemical Resistance
      • Air Resistance - Seal out air
      • 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
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Tape - Foam Tape
    • Substrate
    • Industry
      • Lighting - Recessed lighting seal, Aircraft lights
      • Storage & Graphics - Computers
      • Keyboards
      • Automotive - Automotive dash boards
      • Aircraft - Aircraft lights
      • Electronics - Printers, Can be used to help absorb vibration in electronics, Can be used to help damp sound vibration in electronics, Can be used to help cushion vibration in electronics
      • Construction Door - Door seal
      • Construction Window - Window seal
      • Other - Cabinet seal
    • Chemistry
    • Application Method
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Gray - Grey
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - Meets F.A.R requirement
      • International Organization for Standardization - Registered to ISO 9001 standards
    • Tape Backing/Carrier
      • Other - Urethane
    Specifications
    Cure Specs
    Application Temperature (°F) 70 to 100
    Bond Strength
    General Bond Strength (psi) Offers good quick stick Test Method
    Tensile Strength (psi) 25 (lb/in² ) Test Method
    Tape Properties
    Single Sided Single coated
    Carrier Thickness (mm) 0.076
    Liner Thickness (mm) 0.080
    Total Thickness (mm) 3.200
    Tape Width (mm) 6 to 1,168
    Material Resistance
    Aging Resistance Excellent
    Fungus Resistance Mildew resistance, Mold resistance Test Method
    UV Resistance Excellent
    High Temperature Resistance (°C) 66, 121 Test Method
    Low Temperature Resistance (°C) -29 Test Method
    Other Resistance Seal out dust
    Conductivity
    Dielectric Strength (V/mil) 20 Test Method
    Thermal Conductivity (W/m°K) 0.04 Test Method
    Surface Resistivity (O) 6e12 (ohms/sq), 1e13 (ohms/sq) Test Method
    Hardness
    Conformable Conformable
    Compression Set (%) 5.000 Test Method
    Elongation (%) 125 Test Method
    Shore OO Hardness 10 Test Method
    Flexibility Very soft
    Other Properties
    Density (g/cm³) Low, 0.032 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 is 24 months from date of manufacture.
    Shelf Life Temperature (°F) 140 to 176
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 24
  • Best Practices for 3M Single-Coated Urethane Foam Tape 4318

    *See Terms of Use Below

    1. 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.

    2. 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.

      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.

  • Comparable Materials for 3M Single-Coated Urethane Foam Tape 4318

    *See Terms of Use Below

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General Bond Strength Test Methods
General Bond Strength Cure Time
Offers good quick stick 20 min
Tensile Strength Test Methods
Tensile Strength Test Method
25 (lb/in² ) ASTM D 3574, Die "A"
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
66°C Long term (day, weeks)
121°C Short term temperature resistance
Low Temperature Resistance Test Methods
Low Temperature Resistance Test Method
-29°C Cold flex, No cracks. Tape slowly bent around a 1/4 in. diameter mandrel.
Fungus Resistance Test Methods
Fungus Resistance Test Method
Mildew resistance No growth after 28 days, ASTM G21, Foam with adhesive
Mold resistance No growth after 28 days, ASTM G21, Foam with adhesive
Dielectric Strength Test Methods
Dielectric Strength Test Method
20 V/mil ASTM D-149
Thermal Conductivity Test Methods
Thermal Conductivity Test Method
0.04 W/m°K ASTM C-518
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
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
Compression Set Test Methods
Compression Set Test Method
5.000 % ASTM D1667
Density Test Methods
Density Test Method
Low
0.032 g/cm³ ASTM D-3574, Foam with adhesive