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3M™ Double Coated Tape 9731, Clear, 48 in x 108 yd, 5.5 mil, 1 roll per case

  • 3M Product Number 9731
  • 3M ID 7010334787
  • UPC 00051138958091

Ideal for attaching silicone rubber elastomers and foam

Features acrylic and silicone adhesives for specialized applications such as silicone gasketing

3M™ Adhesive 350 on the face side provides exceptional temperature and chemical resistance

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Tech Data Sheet (0B)
Overall Width (Metric) 122 cm
Total Tape Thickness without Liner (Metric) 0.14 mm
Overall Width (Imperial) 48 in
Total Tape Thickness without Liner (Imperial) 5.5 mil
Backing (Carrier) Material Polyester Film
Adhesive Type Acrylic/Silicone
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  • Ideal for attaching silicone rubber elastomers and foam
  • Features acrylic and silicone adhesives for specialized applications such as silicone gasketing
  • 3M™ Adhesive 350 on the face side provides exceptional temperature and chemical resistance
  • 3 mil silicone adhesive on liner side bonds well to silicone substrates
  • Double linered – Adhesive 350 on 58# 4.2 mil PCK liner and silicone adhesive on 3 mil PET liner

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.

3M(TM) Double Coated Tape 9731 application on a Silicone Rubber Keypad Assembly
Differential adhesive—silicone adhesive on back side for silicone keypad attachment and printer toner cartridge refurbishing
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
  • Gasketing
  • Filters
  • Silicone foams and rubber

3M(TM) Double Coated Tape 9731 application bonding a silicone rubber insulator
A silicone/acrylic double coated tape ideal for attaching silicone materials to HSE or LSE materials
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.

Compare More 3M Double Coated Tapes for Labeling and Graphics Solutions (PDF, 26.90 Mb)

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.

Find More 3M Industrial Adhesives and Tapes (PDF, 12.28 Mb)

Typical properties



Large Volume Order

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For industrial/occupational use only. Not for consumer sale or use.

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.