High-performance double-coated tape with acrylic and silicone adhesives, ideal for silicone gasketing, filters, and foam applications with exceptional temperature and chemical resistance.
The 3M™ Double Coated Tape 9731 is a high-performance adhesive solution specifically engineered for demanding industrial applications involving silicone materials. This specialized tape features a unique dual-adhesive system combining acrylic adhesive on the face side with silicone adhesive on the liner side, mounted on a 1 mil clear polyester (PET) carrier. The acrylic adhesive (3M™ Adhesive 350) provides exceptional temperature and chemical resistance, while the silicone adhesive on the back side bonds excellently to silicone substrates, making it ideal for gasketing, filters, and silicone foam applications.
This double-coated tape is constructed with a thin polyester carrier that provides superior dimensional stability and improved handling characteristics, enabling easy die-cutting and lamination processes. The tape features double liners—a 58# polycoated kraft paper (PCK) liner at 4.2 mil thickness on the acrylic side and a 3 mil polyester film liner on the silicone side—both providing reliable performance for industrial applications including die-cutting and automated dispensers. The liners effectively reduce edge curl and protect the tape from humidity extremes, ensuring consistent performance across varying environmental conditions.
With dimensions of 48 inches wide by 36 yards long and a total thickness of 5.5 mil, this tape delivers reliable adhesion across a wide temperature range from -40°F to 250°F (-40°C to 121°C). The product is ideal for pre-application to gasketing materials that are then die-cut to provide finished parts, offering instant adhesion for streamlined manufacturing processes. Applications include air and liquid filters, fluid handling equipment, heat exchangers, silicone keypad attachment, and printer toner cartridge refurbishing, making it an essential solution for industries ranging from aerospace to automotive to electronics.
Key Features
- Dual adhesive system with acrylic on face side and silicone on liner side for specialized bonding
- 3M™ Adhesive 350 provides exceptional temperature resistance up to 250°F and superior chemical resistance
- Silicone adhesive on back side bonds exceptionally well to silicone rubber and elastomers
- Double-lined construction with polycoated kraft paper and polyester film liners reduces edge curl
- 1 mil clear polyester carrier provides dimensional stability and excellent die-cutting capability
- Operating temperature range from -40°F to 250°F ensures performance in extreme conditions
- Ideal for pre-application to gasketing materials with instant adhesion for quick processing
- Excellent holding power and UV resistance for long-term reliability
- Suitable for automated dispensers and manual application methods
Technical Specifications
| Specification |
Value |
| Product Number | 9731 |
| Overall Width (Imperial) | 48 inches |
| Overall Width (Metric) | 122 cm |
| Overall Length (Imperial) | 36 yards |
| Overall Length (Metric) | 33 meters |
| Total Thickness | 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 |
| Secondary Liner Color | Transparent |
| Secondary Liner Thickness (Imperial) | 2.9 mil |
| Secondary Liner Thickness (Metric) | 0.07 mm |
| Product Color | Transparent/Clear |
| Number of Adhesive Sides | Double-sided |
| Tape Type | Double Coated |
| 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 |
| Product Form | Roll |
| Units per Case | 1 Roll |
| Smallest Saleable Unit | Roll |
| Assembly Type | Gasket Attachment |
| Shelf Life | 18 months from date of manufacture |
| Indoor/Outdoor Use | Both |
| UPC Code | 00051138958084 |
| 3M ID | 7000001317 |
| Brand | 3M™ |
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