• Description for 3M 4085

    Off-white, open-cell urethane foam carrier • High tack adhesive • Attach wire clips, Attach air fresheners

    *See Terms of Use Below

    Chemical Resistance Chemical Resistance: Hydrocarbon solvent
    Application Type Bond, Hold, Mount
    1 Part or 2 Part 1-Part
    Material Form Foam Tapes
    Substrate Metal, ABS, Plastics, PolyEthylene, Polycarbonate, Polypropylene, Rubber, Acrylic
    Industry Electronics
    Manufacturer 3M
    Chemistry Polyurethane, Acrylic, Polyurethane Foam
    Cure Method Pressure Sensitive
    Application Temperature (°F) 70 to 100
    Color Natural, Off-White
    High Temperature Resistance (°C) 152, 93, High
    Density (g/cm³) 0.352
    Key Specifications TSCA
  • Technical Data for 3M 4085

    • Chemical Resistance
      • Chemical Resistance : Relative Solvent Resistance - Hydrocarbon solvent
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Tape - Foam Tapes
    • Substrate
    • Industry
    • Chemistry
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Off-White
      • Other - Natural
    • Key Specifications
      • TSCA (Toxic Substances Control Act) - TSCA
    Cure Specs
    Application Temperature (°F) 70 to 100
    Bond Strength
    General Bond Strength (psi) High
    Shear Strength (psi) High, 1000 (gms), 250 (gms) Test Method
    Tensile Strength (psi) 45, 140 Test Method
    Material Resistance
    UV Resistance UV resistance
    High Temperature Resistance (°C) 152, 93, High Test Method
    Dielectric Strength (V/mil) 200 to 300
    Thermal Conductivity (W/m°K) 0.06
    Elongation (%) 100
    Flexibility Medium-firm
    Other Properties
    Density (g/cm³) 0.352
    Business Information
    Shelf Life Details Store in original cartons at 70°F (21°C) and 50% relative humidity.;To obtain best performance, use these products within 24 months from date of manufacture except 3M™ Double Coated Urethane Foam Tape 4085 which is 18 months from date of manufacture.
    Shelf Life Temperature (°F) 70
    Shelf Life Type from date of manufacture
    Shelf Life (mon) 18
  • Best Practices for 3M 4085

    *See Terms of Use Below

    1. Surface Preparation

      To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Typical surface cleaning solvents are isopropyl alcohol* and water (rubbing alcohol) or heptane.

      *Note: Be sure to follow the manufacturer’s precautions and directions for use when using solvents.

    2. Application

      Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure helps develop better adhesive contact and 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.

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    *See Terms of Use Below

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Shear Strength Test Methods
Shear Strength Type Test Time Test Temperature Test Method
1000 (gms) Static Shear Strength 360,000 sec 22°C Measured at various temperatures and gram loadings. (1/2 sq. in. overlap).Will hold listed weight for 100 hours.
250 (gms) Static Shear Strength 360,000 sec 49°C Measured at various temperatures and gram loadings. (1/2 sq. in. overlap).Will hold listed weight for 100 hours.
Tensile Strength Test Methods
Tensile Strength Test Method
45 psi T Block 1 in2 (6.45 cm2) Jaw Speed 2 in/min (50 mm/min)
140 psi
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
152°C Long Term
93°C Short Term