3M™ Double Coated Tape 9731 was developed with a high-performance acrylic adhesive on the face side and a silicone adhesive on the liner side of a 1 mil clear PET carrier. It is excellent for demanding applications where silicone materials must be bonded to a range of substrates.
The Inside and Outside of Our Double Coated Tape
Combining a silicone based adhesive and a rubber based adhesive on a flexible, strong 1 mil clear polyester film (PET) carrier, our 3M™ Double Coated Tape 9731 is excellent for gasketing and other specialized applications involving silicone parts. The silicone adhesive provides a good bond to silicone rubber, strong holding power to various silicone surfaces. The face side features 3M™ Adhesive 350, an acrylic adhesive which provides very high adhesion to a wide variety of materials. Both adhesives enable the tape to perform effectively across a range of applications, including high temperature performance, good solvent resistance, very good holding power and excellent UV resistance.
The thin polyester carrier provides dimensional stability and improved handling with ease of die cutting and lamination. Both the 3 mil PET liner and the polycoated kraft paper release liner provide reliable performance for industrial applications, such as die-cutting and automated dispensers. The liners also help reduce edge curl and protect the tape from humidity extremes.
Recommended Applications
Unique Solutions
For gasketing applications, this tape can be pre-applied to gasketing material, which is then die-cut to provide parts. 3M™ Double Coated Tape 9731 provides instant adhesion to keep processes moving forward. This tape is ideal for attaching preformed gaskets, and also for replacing gaskets or bonding and sealing simultaneously. Examples include air and liquid filters, fluid handling equipment and heat exchangers. Turn to 3M™ Double Coated Tape 9731 when you need gaskets that are easy and quick to apply, resist fluids and provide high adhesion to foams and various silicone surfaces.
What is Double Coated Tape?
In general, double coated tape is composed of a paper, film, or tissue carrier that is coated on both sides with pressure sensitive adhesive. The adhesive is protected by a peel-away liner that is removed at the time of application. These tapes can be applied by hand or with a dispenser. Double coated tape dispensers are available in a variety of configurations ranging from manual to fully automatic. Applications for double coated tape are found in electronics, automotive, aerospace, general industrial and fabrication markets.
Bringing Better Ideas to the Surface through Science
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.
| Adhesive Type | Acrylic/Silicone |
| Assembly Type | Gasket Attachment |
| Back Side Adhesive Thickness (Imperial) | 1.6 mil |
| Back Side Adhesive Thickness (Metric) | 0.041 mm |
| Back Side Adhesive Type | Silicone |
| Backing (Carrier) Material | Polyester Film |
| Backing (Carrier) Thickness (Imperial) | 1 mil |
| Backing (Carrier) Thickness (Metric) | 0.025 mm, 0.03 mm |
| Brands | 3M™ |
| Carrier Material | Polyester Film |
| Carrier Thickness | 0.09514 mil, 1 none |
| Carrier Thickness (Metric) | 0.03 mm |
| Core Size (Imperial) | 3 in |
| Core Size (Metric) | 76.2 mm |
| Face Side Adhesive Thickness (Imperial) | 1.6 mil, 2.9 mil |
| Face Side Adhesive Thickness (Metric) | 0.04 mm, 0.07 mm |
| Face Side Adhesive Type | High Performance Acrylic Adhesive 350, Silicone |
| Industries | Appliance, Converter Solutions, Electronics, Medical, Metalworking, General Industrial, Oil & Gas, Signage, Specialty Vehicle, Transportation, Aerospace, Automotive, Military & Government |
| Master Size Length (Metric) | 98.8 m |
| Master Size Width (Metric) | 122 cm |
| Maximum Operating Temperature (Celsius) | 121 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 250 ℉ |
| Minimum Operating Temperature (Fahrenheit) | -40 ℉ |
| Primary Liner | 58# Polycoated Kraft Paper (PCK) |
| Primary Liner Color | Transparent, Tan |
| Primary Liner Thickness (Imperial) | 2.9 mil, 4.2 mil |
| Primary Liner Thickness (Metric) | 0.07 mm, 0.11 mm |
| Product Color | Transparent |
| Product Form | Roll |
| Secondary Liner | Polycoated Kraft Paper, Polyester Film |
| Secondary Liner Color | Tan, Transparent |
| Secondary Liner Thickness (Imperial) | 2.9 mil, 4.2 mil |
| Secondary Liner Thickness (Metric) | 0.07 mm, 0.17 mm |
| Shelf Life | 12 Month |
| Shelf Life in Months (From Date of Manufacture) | 12 |
| Smallest Saleable Unit | Roll |
| Total Tape Thickness without Liner (Imperial) | 5.5 mil |
| Total Tape Thickness without Liner (Metric) | 0.14 mm |
| Units per Case | 1.0, 72.0 |
| Overall Length (Imperial) | 36 yd, 180 yd |
| Overall Length (Metric) | 32.91 m, 164.59 m |
| Overall Thickness (Imperial) | 5.5 mil |
| Overall Width (Imperial) | 0.5 in, 38 in |
| Overall Width (Metric) | 12.7 mm, 50.8 mm, 965.2 mm |
Data Sheets
(PDF, 92KB)
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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
3M™ Double Coated Tape 9731RW