Application Type Bond, Hold 1 Part or 2 Part 1 Part Material Form Double-Coated Tape Substrate ABS, Polycarbonate, Polyester, Polypropylene, Rubber, Silicone Rubber, Stainless Steel Manufacturer 3M Chemistry Acrylic, Silicone Cure Method Pressure Sensitive Color Tan Relative Solvent Resistance Chemical Resistance: Good solvent resistance High Temperature Resistance (°C) 121, 177
Technical Data for 3M 9731
- Adhesive - Bond, Hold
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
- Tape - Double-Coated Tape
- Dispenser - Lamination equipment
- Pressure Sensitive (min) - Pressure Sensitive
- Brown - Tan
Application Temperature (°F) 70 to 100
Peel Strength (piw) 40 (Oz./in.), 42 (Oz./in.), 48 (Oz./in.), 39 (Oz./in.), 42 (Oz./in.), 40 (Oz./in.) Test Method Shear Strength (psi) 1000 (grams), 500 (grams) Test Method
UV Resistance Excellent High Temperature Resistance (°C) 121, 177 Test Method
Dielectric Strength (V/mil) 8,000 Test Method Volume Resistivity (O) 3.4e15 (ohms/cm) Test Method
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 9731
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.
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.
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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Shear Strength Test Methods
|Shear Strength||Test Time||Test Temperature||Test Method|
|1000 (grams)||>600,000 sec||22°C||ASTM D3654 modified -(.5 inch2 sample size)|
|500 (grams)||>600,000 sec||70°C||ASTM D3654 modified -(.5 inch2 sample size)|
Peel Strength Test Methods
|Peel Strength||Type||Substrate||Test Time||Test Temperature||Test Method|
|40 (Oz./in.)||90° Peel strength||Stainless steel||15 min||20°C Room Temperature||Adhesion to stainless steel ASTM D3330 - 90 degree|
|42 (Oz./in.)||90° Peel strength||Stainless steel||4,320 min||20°C Room Temperature||Adhesion to stainless steel ASTM D3330 - 90 degree|
|48 (Oz./in.)||90° Peel strength||Stainless steel||4,320 min||70°C||Adhesion to stainless steel ASTM D3330 - 90 degree|
|39 (Oz./in.)||90° Peel strength||ABS||4,320 min||20°C Room Temperature||Adhesion to other surfaces ASTM D3330 - 90 degree,2 mil al foil, 72 hour RT|
|42 (Oz./in.)||90° Peel strength||Polycarbonate||4,320 min||20°C Room Temperature||Adhesion to other surfaces ASTM D3330 - 90 degree,2 mil al foil, 72 hour RT|
|40 (Oz./in.)||90° Peel strength||Polypropylene||4,320 min||20°C Room Temperature||Adhesion to other surfaces ASTM D3330 - 90 degree,2 mil al foil, 72 hour RT|
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|
|8,000 V/mil||ASTM D1000 RMS|
Volume Resistivity Test Methods
|Volume Resistivity||Temp (°C)||Test Method|
|3.4e15 (ohms/cm)||21°C||ASTM D257|