Premium industrial double-coated tape with acrylic and silicone adhesives for silicone material bonding, gasketing, and foam attachment applications with exceptional temperature and chemical resistance.
3M™ Double Coated Tape 9731 is a premium industrial adhesive tape engineered for demanding applications involving silicone materials and specialized bonding requirements. This high-performance tape features a unique dual adhesive system combining 3M™ Adhesive 350 (acrylic-based) on the face side with a silicone adhesive on the liner side, all mounted on a 1 mil clear polyester (PET) carrier. The tape is specifically designed to bond silicone rubber elastomers, foams, and other low-surface-energy (LSE) materials to a wide range of substrates with exceptional holding power and durability.
The tape delivers outstanding performance characteristics including exceptional temperature and chemical resistance, with operating temperatures ranging from -40°F to 250°F (-40°C to 121°C). The 5.5 mil total thickness provides excellent dimensional stability and improved handling capabilities, making it ideal for die-cutting and automated dispensing applications. The double-lined construction features a 58# polycoated kraft paper (PCK) primary liner (4.2 mil) and a 3 mil polyester film secondary liner, both of which help reduce edge curl and protect the tape from humidity extremes.
This industrial-grade tape is engineered for gasketing, filter applications, silicone foam bonding, and specialized silicone rubber attachment applications. It offers instant adhesion for rapid processing, excellent resistance to fluids and solvents, and superior UV resistance. The 36-inch width by 36-yard length roll comes in a convenient single-roll case format, making it suitable for high-volume industrial applications including aerospace, automotive, electronics, medical device manufacturing, and general industrial fabrication.
Key Features
- Dual adhesive system with 3M™ Adhesive 350 (acrylic) on face side and silicone adhesive on liner side
- Ideal for silicone rubber elastomers, foams, and low-surface-energy material bonding
- Exceptional temperature and chemical resistance with operating range -40°F to 250°F
- Clear polyester carrier provides dimensional stability and excellent handling for die-cutting and automated dispensing
- Double-lined construction with polycoated kraft paper and polyester film reduces edge curl and humidity damage
Technical Specifications
| Specification |
Value |
| Product Number | 9731 |
| Overall Width (Imperial) | 36 inches |
| Overall Width (Metric) | 914 mm |
| Overall Length (Imperial) | 36 yards |
| Overall Length (Metric) | 32.91 meters |
| Total Thickness (Imperial) | 5.5 mil |
| Total Thickness (Metric) | 0.14 mm |
| Carrier Material | Polyester Film (PET) |
| Carrier Thickness (Imperial) | 1 mil |
| Carrier Thickness (Metric) | 0.025 mm |
| Face Side Adhesive Type | High Performance Acrylic Adhesive 350 |
| Face Side Adhesive Thickness (Imperial) | 1.6 mil |
| Face Side Adhesive Thickness (Metric) | 0.041 mm |
| Back Side Adhesive Type | Silicone |
| Back Side Adhesive Thickness (Imperial) | 2.9 mil |
| Back Side Adhesive Thickness (Metric) | 0.07 mm |
| Primary Liner Material | 58# Polycoated Kraft Paper (PCK) |
| Primary Liner Color | Tan |
| Primary Liner Thickness (Imperial) | 4.2 mil |
| Primary Liner Thickness (Metric) | 0.17 mm |
| Secondary Liner Material | Polyester Film |
| Secondary Liner Color | Transparent |
| Secondary Liner Thickness (Imperial) | 2.9 mil |
| Secondary Liner Thickness (Metric) | 0.07 mm |
| Product Color | Transparent |
| Product Form | Roll |
| Core Size (Imperial) | 3 inches |
| Core Size (Metric) | 76.2 mm |
| Maximum Operating Temperature (Fahrenheit) | 250°F |
| Maximum Operating Temperature (Celsius) | 121°C |
| Minimum Operating Temperature (Fahrenheit) | -40°F |
| Minimum Operating Temperature (Celsius) | -40°C |
| Tape Type | Double Coated |
| Assembly Type | Gasket Attachment |
| Indoor/Outdoor | Both |
| Shelf Life (Months) | 18 |
| Units per Case | 1 Roll |
| UPC Code | 00051138953669 |
| 3M ID | 7010374432 |
| Brand | 3M™ |
| Smallest Saleable Unit | Roll |
| Master Size Width (Metric) | 122 cm |
| Master Size Length (Metric) | 98.8 m |
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