3M

3M 9731 Double Coated Polyester Tape

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.

Ideal for attaching silicone rubber elastomers and foam
Features acrylic and silicone adhesives for specialized applications such as silicone gasketing
Adhesive on the face side provides exceptional temperature and chemical resistance

Unwind Side Adhesive Type: 3M™ 350 (High Performance Acrylic)

Liner Side Adhesive Type: Silicone

Color: Clear / Transparent

Liner Material: Unwind Side: 58# Polycoated Kraft (PCK), Liner Side: Clear PET

Backing/Carrier Material: PET - Polyester Film

TotalThickness: 5.5 mil

Overview
Customize
Features
Specifications
Compliance
Resources

Overview

Consult

Specify a finalized design or create a new one from scratch with our experienced converting experts.

Design

Pair our material sampling library with our precision converting capabilities to optimize and validate a prototype.

Produce

Rely on our top-tier suppliers, strict quality controls, and hands-on help to ensure your product's effectiveness throughout its lifecycle.

Customize

Customize This Material

Our wide range of converting capabilities allow us to take this material and transform it into the right width, length, shape or fabricated part to not only achieve ideal integration into your end use, but also optimize how you apply the material in your application. Our converting equipment paired with our expert engineering team will help you create the exact custom solution for your unique requirements.

To learn more about the most common converting services we offer, or to contact our team to start discussing your solution, please utilize the below links:

Tape Slitting

Die-Cutting

Custom Part Fabrication

Prototyping

Custom Length Rolls

Features

Ideal for attaching silicone rubber elastomers and foam
Features acrylic and silicone adhesives for specialized applications such as silicone gasketing
Adhesive on the face side provides exceptional temperature and chemical resistance

Specifications

Color	Clear / Transparent
Backing/Carrier Material	PET - Polyester Film
Unwind Side Adhesive Type	3M™ 350 (High Performance Acrylic)
Liner Side Adhesive Type	Silicone
Total Thickness	5.5 mil
Backing/Carrier Thickness	1 mil
Unwind Side Adhesive Thickness	1.6 mil
Liner Side Adhesive Thickness	2.9 mil
Liner Material	Unwind Side: 58# Polycoated Kraft (PCK), Liner Side: Clear PET
Unwind Side Adhesive Strength	78oz/in
Liner Side Adhesive Strength	44 oz/in
Minimum Temperature Performance	-40°F
Maximum Temperature Performance	250°F
Unwind Side Adhesive Permanent	Yes
Liner Side Adhesive Permanent	Yes

Compliance

We value the importance of up to date an accurate regulatory information on the products we work with. For the most current Compliance and Regulatory information on your product of interest, please contact our experts for assistance.

Resources

Technical Data Sheet

3M Double Coated Tape 9731 combines a high-performance acrylic adhesive on the face side with a silicone adhesive on the liner side of a 1 mil clear PET carrier, making it ideal for bonding silicone materials to a wide range of substrates in demanding industrial applications.

Applications where bonding silicone rubber to high surface energy materials is
necessary. Gasketing. Filters. Silicone foams and rubber.

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