DuPont Teijin Teonex®

The performance of TEONEX® polynaphthalene film (PEN FILMS) is between polyester film and polyimide film. It has excellent long-term high temperature aging resistance and can be used continuously at 155 °C to meet the requirements of Class F. It has good dimensional stability at high temperatures, low heat shrinkage, better hardness, hydrolysis resistance and UV radiation resistance.

UL No. : E206562
Temperature rating : 155C°
Environmental certification : RoHS, REACH, MSDS
System Certification : ISO9001,ISO14001,IATF16949
Standard width : 1000mm
Packaging method : Carton
Free sample : A4
Brand : DuPont Teijin

Product Overview

Teonex® is the world's first biaxially oriented PEN polynaphthalene film that has been successfully developed and industrialized.

The product has better performance than PET film and balances the high performance film with excellent performance. Now widely used in high density magnetic tape, IC card, FPC, capacitor, electrical insulation, battery

Basic performance

1. Excellent mechanical strength and Young's modulus

2. Excellent thermal stability 

3. Stable chemical properties

4. Excellent electrical insulation properties 

5. Excellent durability and hydrolysis resistance

Product specifications


thickness (μm)

Features and applications



A representative standard PEN film with excellent thermal and mechanical properties. Mainly used in electrical insulation, speakers, MTS, engineering materials and other industries



Double-coated adhesive-strengthened film. Mainly used in electrical insulation, speaker and other industries



A film that is further processed by an off-line process to further enhance its heat shrinkage characteristics. Mainly used in FPC, RFID and other industries



A film that has been subjected to off-line processing to optimize heat shrinkage properties and has heat resistance to soldering. Used in FPC, RFID, heat-resistant labels, semiconductor materials and other industries


Teonex® products are excellent PEN film products. With its excellent performance, it is widely used in electrical insulation, speaker components, magnetic IC cards, FPC, RFID, labels, labels, semiconductor materials, organic EL, electronic paper, solar cells, capacitors and environmentally friendly vehicles.

TAG:   DuPont Teijin Teonex


Sui On Insulating Materials Co., Ltd

TEL:+852-2384 8026  +852-2384 4779                                               FAX:+852-2781 1077

ADDRoom 3, 11/F, Tai Shing Commercial Building, 498-500 Nathan Road, Hong Kong


Sui On Lamination Materials (shenzhen) Co., Ltd.

TEL:+86-755-2791 8950-1067                                                             FAX:+86-755 2791 8952                                                                    POSTCODE:518107

ADDYJ Science &Technology Park,Hongyin Road,Loucun Community,Guangming New Dist,Shenzhen, Guangdong, China 


Shanghai Changdai Insulating Materials Co.,Ltd.

TEL:+86-21-5760 9357                                                                        FAX:+86-21-3760 1314                                                                     POSTCODE:201500

ADDNO.59,Lin Sheng Road,Jin Shan Town,Shanghai, China 


Qingdao Sui On Insulating Materials Co.,Ltd.

TEL:+86-532-8908 6377                                                                      FAX:+86-532-8908 1058                                                                     POSTCODE:266109

ADD2 ChenHui Road, Erli Village, LanChun Road,JiMo City,Qingdao, Shandong Province, China


Sui On Haiwei(Tianjin) Insulating Materials Co.,Ltd

TEL:+86-022-2639 7980                                                                       FAX:+86-022-2691 8557                                                                    POSTCODE:300400

ADDNO.33 Building ,YouGu New Science Technology Park ,Jingfu Rd. Beichen Dist, Tianjin

TAG:   DuPont Teijin Teonex

Suion Insulation

Founded in Hong Kong in 1986, currently has five branches in China;

DuPont China and Hong Kong distributor;

Acting brands are: DuPont, Axal, Renazhi, Toyo Express, Kejibi, etc.;

In 2003, the company registered the SOFLEX® trademark and developed and produced products such as NHN.

A Hong Kong-funded high-tech enterprise integrating R&D, production, sales and service.

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Contact Us

  • Park,Hongyin Road,Loucun Community,Guangming New Dist, Shenzhen,Guangdong, China
  • +86 755 2779 1736


YJ Science &Technology Park,Hongyin Road,Loucun Community,Guangming New Dist, Shenzhen,Guangdong, China