

-
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.Chemical Resistance Chemical Resistance: Good solvent resistance Application Type Bond, Hold Material Form Double Coated Tape Substrate ABS, Polycarbonate (PC), Polyester, Polypropylene (PP), Rubber, Silicone Rubber, Stainless Steel 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
- Adhesive - Bond, Hold
-
Material Form
- Tape - Double Coated Tape
-
Substrate
- ABS
- Polycarbonate - Polycarbonate (PC)
- Polypropylene - Polypropylene (PP)
- Rubber
- Silicone Rubber
- Polyester
- Stainless Steel
- Other - A wide variety of materials
-
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 Volume Resistivity (O) 3.4e^15 (ohm-cm) Test Method Surface Resistivity (O) 7.4e^15 (ohm-cm), 2.6e^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
-
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.
-
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.
-
-
Comparable Materials for 3M Double Coated Tape 9731
Spec Engine® Results
Popular Articles
Thermal Adhesives Guide
Read ArticleElectronic Component Adhesives Guide
Read ArticleInfographic: ENSURING A STRONG BOND - 6 Basic Methods of Surface Preparation
Read ArticleTesting the effectiveness of surface treatments
Read ArticleSponsored Articles
Unique Advantages of Contact Adhesives
Read ArticleUsing LOCTITE® 454™ is a Valid Option for Engineers Working with a Wide Variety of Materials
Read ArticleSylgard 184 by DOW is the Top Choice for a Transparent, Silicone Encapsulant. Read Why:
Read ArticleCase Study: Creating reliable, corrosion-free bonds with LORD® 406 acrylic adhesive
Read ArticleFeatured Ads

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 |
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 |
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 |
Volume Resistivity Test Methods
Volume Resistivity | Temp (°C) | Test Method |
---|---|---|
3.4e^15 (ohm-cm) | 20 to 25°C Room Temperature | ASTM D257 |
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 |