3M Double Coated Tape 9731 Datasheet 3M Double Coated Tape 9731

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  • Description for 3M Double Coated Tape 9731

    A firm, silicone pressure sensitive adhesive coated on one side of a polyester film carrier and a high performance acrylic adhesive coated on the other side of the carrier.

    *See Terms of Use Below

    Chemical Resistance Chemical Resistance: Good solvent resistance
    Application Type Bond, Hold
    Material Form Double Coated Tape
    Substrate Polycarbonate (PC), Polyester, Polypropylene (PP), Rubber, Stainless Steel, Silicone Rubber, ABS
    Manufacturer 3M
    Chemistry Acrylic, Silicone
    Cure Method Pressure Sensitive
    Application Temperature (°F) 70 to 100
    Color Tan, Clear
    Total Thickness (mm) 0.14 (mm) without liner, 0.041 (mm), Faceside, 0.07 (mm), Backside
    Double Sided Double Coated
    High Temperature Resistance (°C) 121, 177
    Volume Resistivity (O) 3.4e^15 (ohm-cm)
  • Technical Data for 3M Double Coated Tape 9731

    Overview
    • Chemical Resistance
      • Chemical Resistance : Relative Solvent Resistance - Good solvent resistance
    • Application Type
    • Material Form
      • Tape - Double Coated Tape
    • Substrate
    • Chemistry
    • Application Method
      • Dispenser - Lamination equipment
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Brown - Tan
      • Clear / Transparent - Clear
    Specifications
    Cure Specs
    Application Temperature (°F) 70 to 100
    Bond Strength
    General Bond Strength (psi) High
    Peel Strength (piw) 4.3 (N/cm), 4.5 (N/cm), 4.4 (N/cm), 4.4 (N/cm), 4.5 (N/cm), 5.2 (N/cm), 8.1 (N/cm), 6.5 (N/cm), 4.8 (N/cm), 7.7 (N/cm), 10.1 (N/cm), 13.2 (N/cm) Test Method
    Shear Strength (psi) 1000 (g), 500 (g), 1000 (g), 500 (g), Excellent shear holding power Test Method
    Tape Properties
    Total Thickness (mm) 0.14 (mm) without liner, 0.041 (mm), Faceside, 0.07 (mm), Backside
    Double Sided Double Coated
    Material Resistance
    UV Resistance Excellent
    High Temperature Resistance (°C) 121, 177 Test Method
    Conductivity
    Dielectric Strength (V/mil) 0.00 8000 (V) Test Method
    Surface Resistivity (O) 7.4e^15 (ohm-cm), 2.6e^15 (ohm-cm) Test Method
    Volume Resistivity (O) 3.4e^15 (ohm-cm) Test Method
    Hardness
    Flexibility Firm
    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 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 Double Coated Tape 9731

    *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 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 in compliance with the rules of certain air quality management districts in California

      consult applicable rules before use.

    2. 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.

      To apply adhesives in a wide web format, lamination equipment is required to ensure acceptable quality.

      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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Peel Strength Test Methods
Peel Strength Type Cure Time Cure Temperature Substrate Test Method
4.3 (N/cm) 350 Acrylic Adhesive Peel Adhesion 0°C ABS ASTM D3330
4.5 (N/cm) 350 Acrylic Adhesive Peel Adhesion 0°C Polycarbonate (PC) ASTM D3330
4.4 (N/cm) 350 Acrylic Adhesive Peel Adhesion 0°C Polypropylene (PP) ASTM D3330
4.4 (N/cm) 350 Acrylic Adhesive Peel Adhesion 15 min 20 to 25°C Room Temperature Stainless Steel ASTM D3330
4.5 (N/cm) 350 Acrylic Adhesive Peel Adhesion 4,320 min 20 to 25°C Room Temperature Stainless Steel ASTM D3330
5.2 (N/cm) 350 Acrylic Adhesive Peel Adhesion 4,320 min 70°C Stainless Steel ASTM D3330
8.1 (N/cm) Silicone Adhesive Peel Adhesion ABS ASTM D3330
6.5 (N/cm) Silicone Adhesive Peel Adhesion Polycarbonate (PC) ASTM D3330
4.8 (N/cm) Silicone Adhesive Peel Adhesion Polypropylene (PP) ASTM D3330
7.7 (N/cm) Silicone Adhesive Peel Adhesion 15 min 20 to 25°C Room Temperature Stainless Steel ASTM D3330
10.1 (N/cm) Silicone Adhesive Peel Adhesion 4,320 min 20 to 25°C Room Temperature Stainless Steel ASTM D3330
13.2 (N/cm) Silicone Adhesive Peel Adhesion 4,320 min 70°C Stainless Steel ASTM D3330
Shear Strength Test Methods
Shear Strength Type Test Time Test Temperature Test Method
1000 (g) Static Shear (faceside) 365,400 sec 20 to 25°C Room Temperature ASTM D3654, 0.5 in² sample size
500 (g) Static Shear (faceside) >600,000 sec 70°C ASTM D3654, 0.5 in² sample size
1000 (g) Static Shear (backside) >600,000 sec 70°C ASTM D3654, 0.5 in² sample size
500 (g) Static Shear (backside) >600,000 sec 20 to 25°C Room Temperature ASTM D3654, 0.5 in² sample size
Excellent shear holding power
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
121°C Long Term (days, weeks)
177°C Short Term(minutes, hours)
Dielectric Strength Test Methods
Dielectric Strength Test Method
0.00 V/mil 8000 (V) ASTM D1000, RMS Voltage/Thickness
Surface Resistivity Test Methods
Surface Resistivity Temperature Test Method
7.4e^15 (ohm-cm) 20 to 25°C Room Temperature ASTM D257, 350 Acrylic Adhesive
2.6e^15 (ohm-cm) 20 to 25°C Room Temperature ASTM D257, Silicone Adhesive
Volume Resistivity Test Methods
Volume Resistivity Temp (°C) Test Method
3.4e^15 (ohm-cm) 20 to 25°C Room Temperature ASTM D257