The Global PI Thermal Film Market was valued at USD 364.8 Million in 2025 and is projected to reach USD 602.3 Million by 2034, growing at a Compound Annual Growth Rate (CAGR) of 5.6% during the forecast period (2026–2034). This growth is driven by increasing demand for thermal management solutions in electronics, rapid expansion of 5G infrastructure, and advancements in semiconductor packaging technologies.

As the electronics industry evolves toward smaller, more powerful devices, the spotlight is on key material suppliers driving innovation in thermal management. In this blog, we profile the Top 10 Companies in the PI Thermal Film Industry—leaders in polymer science and advanced materials shaping the future of electronics thermal solutions.

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🔟 1. DuPont

Headquarters: Wilmington, Delaware, USA
Key Offering: Kapton® Polyimide Films, Pyralux® Flexible Copper Clad Laminates

DuPont is the pioneer and global leader in polyimide films, with its Kapton® brand being the industry standard for high-performance thermal management. The company serves aerospace, automotive, and consumer electronics sectors with films renowned for their thermal stability and dielectric properties.

Innovation Initiatives:

• Developing ultra-thin films below 12.5µm for flexible electronics
• Advanced formulations for 5G/mmWave applications
• Sustainability programs to reduce production energy consumption

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9️⃣ 2. Kaneka Corporation

Headquarters: Tokyo, Japan
Key Offering: Apical® Polyimide Films, Heat-resistant adhesive tapes

Kaneka is the predominant Asian producer of high-performance polyimide films, with manufacturing facilities in Japan, South Korea, and Malaysia. Their Apical® films are widely used in flexible printed circuits for smartphones and automotive displays.

Innovation Initiatives:

• Expansion of production capacity in Malaysia (2025)
• Development of low-CTE films for advanced semiconductor packaging
• Recycling programs for polyimide production waste

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8️⃣ 3. PI Advanced Materials

Headquarters: Gumi, South Korea
Key Offering: SKC Kolon PI films, Transparent polyimide solutions

Formerly SKC Kolon PI, this joint venture specializes in high-purity polyimide films for semiconductor and display applications. The company dominates the South Korean market and supplies major electronics manufacturers globally.

Innovation Initiatives:

• World’s first mass production of yellow-tone transparent PI film
• Ultra-smooth surface films for chip-on-film applications
• High thermal conductivity formulations for 5G modules

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7️⃣ 4. UBE Industries

Headquarters: Tokyo, Japan
Key Offering: Upilex® Polyimide Films, High-temperature adhesives

UBE Industries integrates polyimide production from raw materials to finished films, giving it unique supply chain control. Their Upilex® films are preferred for high-reliability applications in aerospace and defense sectors.

Innovation Initiatives:

• Development of boron nitride-filled thermal conductive films
• Thickness control down to 5μm for ultra-flexible circuits
• Closed-loop solvent recovery systems in production

Download FREE Sample Report: https://www.24chemicalresearch.com/download-sample/305185/pi-thermal-film-market

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6️⃣ 5. Rayitek

Headquarters: Shenzhen, China
Key Offering: Rayitek® PI films, Coverlay films for FPCs

Rayitek is China’s leading polyimide film manufacturer, supplying domestic electronics producers with competitive alternatives to imported films. The company has rapidly expanded capacity to serve the growing Chinese semiconductor and display industries.

Innovation Initiatives:

• Localized supply chain for China’s electronics manufacturers
• Cost-optimized films for consumer electronics
• Expansion into high-end aerospace applications

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5️⃣ 6. Taimide Tech

Headquarters: Taoyuan, Taiwan
Key Offering: Taimide® PI films, Laser-drillable coverlays

Taimide Tech specializes in polyimide solutions for high-density interconnect (HDI) applications. The company serves PCB manufacturers across Asia with specialized films for advanced packaging and fine-line circuitry.

Innovation Initiatives:

• Low-dielectric loss films for high-frequency applications
• Anti-static formulations for semiconductor handling
• Customized thermal conductivity grades

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4️⃣ 7. Mortech Corporation

Headquarters: Santa Ana, California, USA
Key Offering: Specialty polyimide tapes, Thermal interface materials

Mortech focuses on value-added converted polyimide products for niche applications. The company provides customized thermal management solutions for military, medical, and industrial electronics.

Innovation Initiatives:

• Conductive adhesive systems for EMI shielding
• High-temperature resistant adhesive formulations
• Rapid prototyping services for specialized applications

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3️⃣ 8. Guilin Electrical Equipment Scientific Research Institute

Headquarters: Guilin, China
Key Offering: Aerospace-grade PI films, High-voltage insulation materials

This state-affiliated research institute develops advanced polyimide materials for China’s strategic industries. Their products meet stringent military and aerospace specifications while serving growing domestic demand.

Innovation Initiatives:

• Radiation-resistant formulations for space applications
• Ultra-high temperature stable films (>400°C)
• National research projects on next-gen electronic materials

Download FREE Sample Report: https://www.24chemicalresearch.com/download-sample/305185/pi-thermal-film-market

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2️⃣ 9. Liyang Hua Jing Electronic Materials

Headquarters: Jiangsu, China
Key Offering: Economic PI films, Adhesive-coated thermal materials

Liyang Hua Jing has emerged as a cost-competitive alternative in the Chinese market, supplying price-sensitive applications while gradually moving up the technology curve. The company serves the growing domestic electronics manufacturing base.

Innovation Initiatives:

• Localized raw material sourcing strategy
• Improved dimensional stability formulations
• Expansion into higher-value industrial applications

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1️⃣ 10. Shandong Wanda Microelectronics

Headquarters: Shandong, China
Key Offering: Wanda PI films, Flexible coverlay materials

Shandong Wanda has rapidly scaled production to become a key domestic supplier in China’s booming electronics industry. The company focuses on films for LED lighting and consumer electronic applications.

Innovation Initiatives:

• High-light-reflectance films for LED applications
• Improved moisture barrier formulations
• Cost-effective solutions for high-volume applications

Get Full Report Here: https://www.24chemicalresearch.com/reports/305185/pi-thermal-film-market

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🌍 Outlook: The Future of PI Thermal Films Is Thinner and Smarter

The PI thermal film market is undergoing significant transformation as electronics become more sophisticated. While standard films continue to dominate volume, the industry is innovating thinner, more conductive, and more specialized formulations.

📈 Key Trends Shaping the Market:

• Accelerating demand for ultra-thin films (<20µm) in foldable electronics
• Development of composite films with enhanced thermal conductivity
• Integration of polyimide films in advanced semiconductor packaging
• Growth of domestic production capabilities in China

Get Full Report Here: https://www.24chemicalresearch.com/reports/305185/pi-thermal-film-market

The companies listed above are not just supplying films—they’re enabling the next generation of electronic innovation through advanced thermal management solutions.