High-performance dual-adhesive double coated tape with acrylic and silicone adhesives for bonding silicone materials, elastomers, foams, and gaskets in industrial applications. Features exceptional temperature and chemical resistance, operates from -40°F to 250°F.
3M™ Double Coated Tape 9731 is a high-performance adhesive tape specifically engineered for demanding industrial applications involving silicone materials and elastomers. This specialized tape features a unique dual-adhesive system with 3M™ Adhesive 350 acrylic adhesive on the face side and silicone adhesive on the liner side, bonded to a 1 mil clear polyester film (PET) carrier. The tape measures 24 inches in width and 108 yards in length with an overall thickness of 5.5 mil, making it ideal for precision applications requiring both strength and flexibility.
The tape is double-linered with 58# polycoated kraft paper (PCK) liner on one side and 3 mil polyester film (PET) liner on the other, providing reliable performance for industrial applications including die-cutting and automated dispensers. The combination of silicone-based adhesive and rubber-based adhesive on the flexible polyester carrier delivers exceptional performance across a wide range of substrates. The silicone adhesive on the back provides superior bonding to silicone rubber, while the acrylic adhesive on the face ensures excellent adhesion to various materials including HSE and LSE plastics, metals, and composites.
This industrial-grade tape excels in gasketing, filtration, and silicone foam applications with outstanding temperature and chemical resistance. Operating temperatures range from -40°F (-40°C) to 250°F (121°C), ensuring reliable performance in extreme environments. The tape offers very good holding power, excellent UV resistance, and good solvent resistance, making it suitable for aerospace, automotive, electronics, appliance, and general industrial applications. With a shelf life of 18 months from the date of manufacture, this tape is designed for professional industrial use only and not for consumer applications.
Key Features
- Dual adhesive system with acrylic (face) and silicone (back) adhesives for specialized bonding
- Exceptional temperature resistance ranging from -40°F to 250°F (-40°C to 121°C)
- Superior chemical and UV resistance with excellent solvent resistance properties
- Double-linered construction with polycoated kraft paper and polyester film liners for reliable performance
- Ideal for gasketing, filtration, silicone foams, and elastomer bonding applications
- Clear polyester film carrier provides dimensional stability and ease of die-cutting
- Excellent adhesion to both high surface energy (HSE) and low surface energy (LSE) materials
- Instant adhesion for quick assembly and process efficiency
- Suitable for automated dispensers and manual application methods
- 18-month shelf life for long-term storage reliability
Technical Specifications
| Specification |
Value |
| Product Number | 9731 |
| UPC Code | 00051138957421 |
| Overall Width (Imperial) | 24 inches |
| Overall Width (Metric) | 609.6 mm |
| Overall Length (Imperial) | 108 yards |
| Overall Length (Metric) | 98.75 meters |
| Overall Thickness (Imperial) | 5.5 mil |
| Total Tape Thickness without Liner (Metric) | 0.14 mm |
| Backing 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 (PET) |
| Secondary Liner Color | Transparent |
| Secondary Liner Thickness (Imperial) | 2.9 mil |
| Secondary Liner Thickness (Metric) | 0.07 mm |
| Product Color | Transparent/Clear |
| Product Form | Roll |
| Tape Type | Double Coated |
| Core Size (Imperial) | 3 inches |
| Core Size (Metric) | 76.2 mm |
| Units per Case | 1 roll |
| Smallest Saleable Unit | Roll |
| Maximum Operating Temperature (Fahrenheit) | 250°F |
| Maximum Operating Temperature (Celsius) | 121°C |
| Minimum Operating Temperature (Fahrenheit) | -40°F |
| Minimum Operating Temperature (Celsius) | -40°C |
| Assembly Type | Gasket Attachment |
| Indoor/Outdoor Use | Both |
| Shelf Life (Months) | 18 months from date of manufacture |
| Brand | 3M™ |
| Recommended Applications | Gasketing, Filters, Silicone foams and rubber, Keypad attachment, Printer toner cartridge refurbishing |
| Suitable Industries | Aerospace, Appliance, Automotive, Electronics, General Industrial, Medical, Metalworking, Military & Government, Oil & Gas, Signage, Specialty Vehicles, Transportation |
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