• Description for 3M 4408

    1/8 in. (3.2 mm) Double-Coated Vinyl Foam Tape. Black, closed-cell vinyl foam carrier.

    *See Terms of Use Below

    Chemical Resistance Chemical Resistance: Hydrocarbon solvent
    Application Type Bond, Seal, Hold, Mount
    1 Part or 2 Part 1-Part
    Material Form Foam Tape
    Substrate Vinyl, Foam
    Manufacturer 3M
    Chemistry Acrylic, Vinyl
    Cure Method Pressure Sensitive
    Application Temperature (°F) 70 to 100
    Color Black
    High Temperature Resistance (°C) 66, 93
    Density (g/cm³) 0.320
    Key Specifications TSCA
  • Technical Data for 3M 4408

    Overview
    • Chemical Resistance
      • Chemical Resistance : Relative Solvent Resistance - Hydrocarbon solvent
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Tape - Foam Tape
    • Substrate
      • Foam
      • Vinyl
    • Chemistry
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Black
    • Key Specifications
      • TSCA (Toxic Substances Control Act) - TSCA
    Specifications
    Cure Specs
    Application Temperature (°F) 70 to 100
    Bond Strength
    Shear Strength (psi) 500 (g), 125 (g) Test Method
    Tensile Strength (psi) 60 Test Method
    Material Resistance
    UV Resistance UV resistance
    High Temperature Resistance (°C) 66, 93
    Conductivity
    Dielectric Strength (V/mil) 50
    Thermal Conductivity (W/m°K) 0.06
    Hardness
    Flexibility Firm
    Other Properties
    Density (g/cm³) 0.320
    Business Information
    Shelf Life Details 18 months from date of manufacture when stored in the original carton at 70°F(21°C) & 50 % Relative Humidity
    Shelf Life Temperature (°F) 70
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 18
  • Best Practices for 3M 4408

    *See Terms of Use Below

    1. Surface Preparation

      To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Some typical surface cleaning solvents are isopropyl alcohol and water or heptane.**Note: Be sure to follow the manufacturer’s precautions and directions for use when working with solvents.

    2. Application

      Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure develops better adhesive contact & thus 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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Tensile Strength Test Methods
Tensile Strength Test Temperature Test Method
60 psi 22°C (“T” Block) 1 in2 (6.45 cm2) Jaw Speed 2 in/min (50 mm/min), Adhesive strength exceeds foam strength
Shear Strength Test Methods
Shear Strength Type Test Time Test Temperature Test Method
500 (g) Static shear strength 360,000 sec 22°C As measured by static shear weight held for 100 hr, 1/2 sq.in overlap
125 (g) Static shear strength 360,000 sec 49°C As measured by static shear weight held for 100 hr, 1/2 sq.in overlap