The Global Composite Insulation Paper Market was valued at US$ 1.75 Billion in 2023 and is projected to reach US$ 2.41 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 4.7% during the forecast period (2024–2030). This sustained growth is fueled by the global push for electrification, the expansion of renewable energy infrastructure, and stringent safety regulations in the electrical and electronics industries.

As industries worldwide prioritize energy efficiency and operational reliability, composite insulation paper has become a critical component in transformers, motors, and high-voltage equipment. In this blog, we profile the Top 10 Companies in the Composite Insulation Paper Industry—a diverse group of material science innovators and manufacturing leaders ensuring the safety and performance of modern electrical systems.

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🔟 1. 3M Company

Headquarters: Maplewood, Minnesota, USA
Key Offering: Nomex® Type 410, 411, 414; Acetate Film Composites

3M is a global leader in advanced materials, with its Electrical Markets Division providing high-performance insulation papers used in demanding applications like power transformers, motors, and generators. Their Nomex® brand aramid papers are renowned for their excellent thermal stability and dielectric strength.

Innovation Initiatives:

• Investment in R&D for next-generation aramid and nanocellulose composites

• Development of sustainable, bio-based insulation materials

• Global supply chain optimization for critical electrical components

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9️⃣ 2. Zhejiang Ligao Insulation Materials Co., Ltd.

Headquarters: Zhejiang, China
Key Offering: DMD, DMDM, NMN, NHN composite papers

Zhejiang Ligao is a major Chinese manufacturer specializing in a wide range of composite insulation papers, including polyester film-polyester nonwoven (DMD) and aramid-based products. The company serves a vast domestic market and exports globally to electrical equipment manufacturers.

Innovation Initiatives:

• Expansion of production capacity for high-temperature Class H and Class C insulation systems

• Focus on cost-effective solutions for the rapidly growing Asian electrical market

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8️⃣ 3. DuPont de Nemours, Inc.

Headquarters: Wilmington, Delaware, USA
Key Offering: Nomex® Aramid Paper, Kapton® Polyimide Films

DuPont is the original inventor and a premier global supplier of Nomex® aramid paper, a cornerstone material for electrical insulation that offers a unique combination of thermal, mechanical, and electrical properties, making it ideal for harsh environments.

Innovation Initiatives:

• Sustainability commitment to reduce environmental footprint of material production

• Collaborative R&D with transformer and motor manufacturers for application-specific solutions

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Composite Insulation Paper Market – View in Detailed Research Report

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7️⃣ 4. Henan YAAN Electrical Insulation Material Plant

Headquarters: Henan, China
Key Offering: Composite Insulation Paper, Laminates, Varnished Sleevings

Henan YAAN is a specialized producer of electrical insulation materials with a strong focus on composite papers. The company provides a comprehensive product portfolio that supports the manufacturing of electric motors, transformers, and appliances across China and international markets.

Innovation Initiatives:

• Quality control enhancements to meet international standards (UL, IEC)

• Development of flame-retardant and environmentally friendly insulation papers

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6️⃣ 5. SUI ON INSULATING MATERIALS LTD.

Headquarters: Hong Kong
Key Offering: Nomex® equivalents, DMD, Flexible Laminates

SUI ON is a prominent supplier in the Asia-Pacific region, offering a wide array of insulating materials. The company is known for its technical expertise and ability to provide tailored solutions for specific customer requirements in the electrical manufacturing sector.

Innovation Initiatives:

• Strategic sourcing and distribution partnerships with global material producers

• Investment in testing laboratories to validate product performance and reliability

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5️⃣ 6. ZTELEC GROUP

Headquarters: Jiangsu, China
Key Offering: Transformer Insulation Paper, Prepregs, Laminates

ZTELEC is a vertically integrated company focused on materials for the electrical power industry. Their composite insulation papers are critical for oil-immersed and dry-type transformers, ensuring long-term reliability and safety in power distribution networks.

Innovation Initiatives:

• Integration of production from raw materials to finished insulation components

• R&D focused on improving the partial discharge resistance and aging performance of papers

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4️⃣ 7. Von Roll Holding AG

Headquarters: Zurich, Switzerland
Key Offering: RÄBIGLAS® composites, MICA tapes, HV insulation systems

Von Roll is a leading European manufacturer of electrical insulation systems, with a long history of innovation. The company produces high-quality composite papers, particularly mica-based products, which are essential for high-voltage rotating machines and large power transformers.

Innovation Initiatives:

• Development of eco-friendly, halogen-free insulation systems

• Provision of complete, tested insulation system solutions for complex applications

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3️⃣ 8. Elantas GmbH

Headquarters: Wesel, Germany
Key Offering: Insulating resins, impregnated papers, composite materials

As part of the ALTANA group, Elantas is a key player in specialty chemicals for electrical insulation. Their product range includes composite papers that are often used in conjunction with their resins and varnishes to create robust insulation systems for the industry.

Innovation Initiatives:

• Strong focus on R&D for materials supporting e-mobility and renewable energy trends

• Global technical service network supporting customers with application engineering

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2️⃣ 9. Qingdao Tainuo Insulation Material Co., Ltd.

Headquarters: Qingdao, China
Key Offering: Mylar/Dacron (DMD) paper, aramid paper, fish paper

Qingdao Tainuo is a specialized manufacturer producing a variety of composite insulation papers. The company has built a reputation for supplying reliable materials to the motor, transformer, and home appliance industries, both domestically and through exports.

Innovation Initiatives:

• Customization of product thickness, width, and specific dielectric properties

• Continuous improvement of manufacturing processes for enhanced product consistency

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1️⃣ 10. ISOVOLTA AG

Headquarters: Werndorf, Austria
Key Offering: Technical backings, composite films, specialty papers

ISOVOLTA specializes in the development and production of technical backings and composite materials, including products used in electrical insulation. The company serves high-tech industries with materials that meet stringent performance and safety standards.

Innovation Initiatives:

• Focus on high-value, specialty applications requiring unique material properties

• Commitment to sustainable production practices and material traceability

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Composite Insulation Paper Market – View in Detailed Research Report

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🌍 Outlook: The Future of Composite Insulation Paper Is Smarter and More Integrated

The composite insulation paper market is evolving in response to the global energy transition. While traditional materials like aramid and polyester composites continue to dominate, the industry is heavily investing in advanced nanomaterials, sustainable production methods, and materials tailored for next-generation applications like electric vehicles and grid-scale energy storage.

📈 Key Trends Shaping the Market:

• Increasing demand for high-temperature insulation in electric vehicle motors and charging infrastructure

• Integration of smart sensors and condition monitoring capabilities within insulation systems

• Development of biodegradable and recyclable insulation materials to meet circular economy goals

• Collaborations between material suppliers and OEMs to co-develop application-specific solutions

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Composite Insulation Paper Market – View in Detailed Research Report

The companies listed above are not only supplying essential materials for electrical safety—they are enabling the technological advancement and global electrification that will define the coming decades.