The Global Electrical Composite Coaming Board Market was valued at USD 245.8 Million in 2025 and is projected to reach USD 378.2 Million by 2034, growing at a Compound Annual Growth Rate (CAGR) of 5.8% during the forecast period (2024–2030). This robust growth is being driven by the global expansion of power infrastructure, the accelerating shift towards renewable energy projects, and the increasing demand for lightweight, durable, and high-performance insulation materials in electrical applications.

As the energy sector prioritizes grid modernization, safety, and efficiency, the role of advanced materials like electrical composite coaming boards has become critically important. These boards are essential components in dry-type transformers and other electrical equipment, providing superior electrical insulation, mechanical strength, and flame retardancy. In this blog, we profile the Top 10 Companies in the Electrical Composite Coaming Board Industry—a group of specialized material manufacturers and innovators who are foundational to the reliability of modern power systems.

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🔟 1. Nantong Zhongling Electric Power Technology Co., Ltd.

Headquarters: Nantong, Jiangsu, China
Key Offering: High-performance composite coaming boards, insulating laminates, transformer components

Nantong Zhongling Electric Power Technology is a leading specialist in the research, development, and production of electrical composite materials. The company’s coaming boards are widely used in dry-type transformers, switchgear, and other high-voltage equipment, known for their excellent dielectric strength and thermal stability.

Innovation and Market Position:

• Extensive R&D focused on enhancing material performance under extreme conditions

• Strong supply chain partnerships with major transformer manufacturers in Asia and Europe

• Certified products meeting international standards including IEC and UL

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9️⃣ 2. Henan Yujue Electrical Materials Co., Ltd.

Headquarters: Xinxiang, Henan, China
Key Offering: Composite coaming boards, insulating cylinders, laminated sheets

Henan Yujue Electrical Materials has established itself as a key supplier of insulation solutions for the electrical industry. The company specializes in producing composite coaming boards with precise thickness tolerances and superior mechanical properties, catering to the demanding requirements of power distribution equipment.

Innovation and Market Position:

• Advanced manufacturing processes ensuring consistent product quality

• Focus on custom solutions for specific transformer designs and applications

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8️⃣ 3. Xuchang Huate Insulation Materials Co., Ltd.

Headquarters: Xuchang, Henan, China
Key Offering: Insulation coaming boards, epoxy glass cloth laminates, composite barriers

Xuchang Huate Insulation Materials is renowned for its comprehensive portfolio of electrical insulation products. The company’s composite coaming boards are engineered to provide critical spacing and insulation within transformers, ensuring operational safety and longevity.

Innovation and Market Position:

• Investment in automated production lines to increase capacity and precision

• Active participation in setting industry standards for insulation materials

Download FREE Sample Report:
Electrical Composite Coaming Board Market – View in Detailed Research Report

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7️⃣ 4. Von Roll Holding AG

Headquarters: Zurich, Switzerland
Key Offering: REDILIT® composite boards, high-voltage insulation systems, transformer components

Von Roll is a global leader in electrical insulation systems with a long-standing history of innovation. Their REDILIT® composite coaming boards are industry benchmarks, known for their high tracking resistance, mechanical robustness, and reliability in the most demanding electrical environments.

Innovation and Market Position:

• Pioneering research in resin chemistry and composite material science

• Global manufacturing and technical support network serving customers worldwide

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6️⃣ 5. Elantas GmbH

Headquarters: Wesel, Germany
Key Offering: Custom composite insulation parts, laminates, and specialized resins

As part of the ALTANA Group, Elantas is a leading specialist for electrical insulation materials. The company produces high-quality composite coaming boards that are integral to the safety and efficiency of dry-type transformers used in industrial, commercial, and renewable energy applications.

Innovation and Market Position:

• Strong focus on developing environmentally friendly and high-temperature resistant materials

• Close collaboration with OEMs to design application-specific insulation solutions

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5️⃣ 6. Hitachi Energy Ltd. (formerly Hitachi ABB Power Grids)

Headquarters: Zurich, Switzerland
Key Offering: Complete transformer solutions, including proprietary insulation components

Hitachi Energy is a global technology leader advancing a sustainable energy future. While primarily a transformer manufacturer, the company possesses deep expertise in insulation systems and produces high-performance composite coaming boards for its own dry-type transformer portfolio, setting high standards for the industry.

Innovation and Market Position:

• Vertical integration allows for tight control over material quality and performance

• Commitment to innovation in materials for next-generation, eco-efficient transformers

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4️⃣ 7. 3M Company

Headquarters: Saint Paul, Minnesota, USA
Key Offering: 3M™ Electrical Insulation Materials, composite sheets, and laminates

3M’s Electrification Solutions division offers a wide range of materials critical for electrical applications. Their composite coaming boards are part of a broader portfolio designed to enhance the reliability, safety, and compactness of power distribution equipment, including transformers.

Innovation and Market Position:

• Strong R&D capabilities driving advancements in nanotechnology and composite materials

• Global brand recognition and a reputation for product quality and consistency

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3️⃣ 8. ISOVOLTA AG

Headquarters: Werndorf, Austria
Key Offering: ISOLAR® and ISOFLEX® composite insulation boards, flexible laminates

ISOVOLTA specializes in developing and manufacturing technical laminates and composite materials for the electrical and electronics industries. Their composite coaming boards are engineered to meet the highest international standards for electrical and fire safety.

Innovation and Market Position:

• Long history of expertise in dielectric materials and laminating technologies

• Strategic focus on sustainability and recycling within their production processes

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2️⃣ 9. Sichuan EM Technology Co., Ltd.

Headquarters: Chengdu, Sichuan, China
Key Offering: DDP (Dough Moulding Compound) sheets, SMC (Sheet Moulding Compound) boards, composite panels

Sichuan EM Technology is a significant player in the Asian market for composite insulating materials. The company produces a variety of coaming boards using advanced moulding compound technologies, offering cost-effective and reliable solutions for transformer manufacturers.

Innovation and Market Position:

• Specialization in DDP and SMC materials for high-volume electrical applications

• Growing export business, expanding presence in emerging markets

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1️⃣ 10. NITTO SHINKO Corporation

Headquarters: Osaka, Japan
Key Offering: Nitto Shinko insulating boards, laminated plastics, composite materials

NITTO SHINKO is a Japanese leader in the manufacturing of electrical insulating materials. The company’s composite coaming boards are recognized for their precision, quality, and reliability, serving a demanding customer base in Japan and across Asia.

Innovation and Market Position:

• Focus on high-precision manufacturing for critical electrical insulation applications

• Strong reputation for quality within the Japanese and Southeast Asian transformer industries

Get Full Report Here:
Electrical Composite Coaming Board Market – View in Detailed Research Report

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🌍 Outlook: The Future of Electrical Composite Coaming Boards is Smarter and More Sustainable

The electrical composite coaming board market is evolving rapidly, driven by the twin engines of grid modernization and the global energy transition. While traditional materials continue to serve established applications, the industry is pushing towards advanced composites that offer enhanced performance, longer lifespan, and improved environmental footprints.

📈 Key Trends Shaping the Market:

• Increasing demand for fire-resistant and halogen-free materials for enhanced safety in public and commercial buildings

• Development of composites with higher Thermal Class ratings (e.g., Class F, Class H) to support compact transformer designs

• Integration of recycled content and bio-based resins to meet sustainability goals

• Growth in offshore wind and solar farms, which require robust and corrosion-resistant insulation for their transformers

Get Full Report Here:
Electrical Composite Coaming Board Market – View in Detailed Research Report

The companies profiled above are not just supplying materials; they are providing the essential building blocks for a more resilient, efficient, and sustainable global energy infrastructure.