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 high-performance thermal management solutions in electronics, the push toward 5G infrastructure, and advanced semiconductor packaging technologies.

As the electronics industry continues its relentless miniaturization trend, PI thermal films have become indispensable for heat dissipation and insulation in cutting-edge applications. In this blog, we profile the Top 10 Companies in the PI Thermal Film Industry—a mix of chemical giants and specialized material innovators shaping the future of electronic components.

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🔟 1. DuPont

Headquarters: Wilmington, Delaware, USA
Key Offering: Kapton® polyimide films, Pyralux® flexible circuit materials

DuPont is the global leader in PI thermal films, with its Kapton® brand being synonymous with high-performance polyimide solutions. The company serves aerospace, automotive, and electronics markets with films renowned for their thermal stability and dielectric properties.

Innovation Highlights:

• Pioneered commercial PI film production
• Developed ultra-thin films below 12.5µm
• Investing heavily in next-gen thermally conductive films

Download FREE Sample Report: PI Thermal Film Market – View in Detailed Research Report

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9️⃣ 2. Kaneka Corporation

Headquarters: Osaka, Japan
Key Offering: Apical® polyimide films, thermally conductive grades

Kaneka is a major player in high-performance PI films, with its Apical® brand widely used in flexible printed circuits and semiconductor applications. The company has been expanding production capacity to meet growing demand.

Innovation Highlights:

• Leading supplier to Asian electronics manufacturers
• Developing graphene-enhanced thermal films
• Focusing on automotive-grade solutions

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8️⃣ 3. PI Advanced Materials

Headquarters: Gumi, South Korea
Key Offering: SKC Kolon PI films, specialty thermal interface materials

Formerly SKC Kolon PI, this joint venture specializes in high-purity PI films for semiconductor packaging and display applications. It’s a key supplier to South Korea’s robust electronics industry.

Innovation Highlights:

• Major capacity expansion underway (2024-2026)
• Developing ultra-low CTE films for advanced packaging
• Strong R&D focus on 5G applications

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7️⃣ 4. UBE Industries

Headquarters: Tokyo, Japan
Key Offering: UPILEX® polyimide films, high-temperature grades

UBE Industries is a leading chemical company with significant expertise in polyimide chemistry. Its UPILEX® films are known for outstanding thermal and mechanical properties in demanding applications.

Innovation Highlights:

• Developing films for flexible OLED displays
• Investing in bio-based polyimide precursors
• Expanding high-thermal-conductivity offerings

Download FREE Sample Report: PI Thermal Film Market – View in Detailed Research Report

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6️⃣ 5. Rayitek

Headquarters: Shenzhen, China
Key Offering: Domestic PI films, cost-competitive solutions

Rayitek is China’s leading PI film manufacturer, playing a crucial role in the country’s push for materials self-sufficiency. The company has been rapidly expanding its production capacity and technical capabilities.

Innovation Highlights:

• Key supplier to China’s electronics supply chain
• Developing specialty films for EV batteries
• Receiving significant government support

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5️⃣ 6. Taimide Tech

Headquarters: Taoyuan City, Taiwan
Key Offering: High-performance PI films, customized solutions

Taimide Tech specializes in tailor-made PI film solutions for electronics and industrial applications. The company has carved a niche in high-reliability products for harsh environments.

Innovation Highlights:

• Strong focus on thermal management applications
• Developing halogen-free flame retardant films
• Expanding into aerospace applications

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4️⃣ 7. Mortech Corporation

Headquarters: Denver, Colorado, USA
Key Offering: Specialty PI tapes, thermal interface materials

Mortech focuses on high-performance PI tape solutions for demanding electronics and industrial applications. The company is known for its technical expertise in adhesive systems.

Innovation Highlights:

• Specializing in thermally conductive adhesive systems
• Developing hybrid PI-silicone materials
• Strong presence in defense/aerospace markets

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3️⃣ 8. Guilin Electrical Equipment Scientific Research Institute

Headquarters: Guilin, China
Key Offering: Domestic PI films, industrial-grade solutions

This Chinese research institute has developed into a significant PI film producer, particularly for power electronics and industrial insulation applications.

Innovation Highlights:

• Focusing on high-voltage insulation films
• Developing PI films for EV traction motors
• Participating in national materials R&D programs

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2️⃣ 9. Liyang Hua Jing Electronic Materials

Headquarters: Jiangsu, China
Key Offering: Cost-effective PI films, FPC materials

Liyang Hua Jing is a growing Chinese producer focusing on the flexible printed circuits market. The company has been gradually moving up the value chain with improved product offerings.

Innovation Highlights:

• Expanding production capacity rapidly
• Improving film quality for premium applications
• Benefiting from local supply chain advantages

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1️⃣ 10. Shandong Wanda Microelectronics

Headquarters: Shandong, China
Key Offering: Domestic PI films, semiconductor-grade materials

Shandong Wanda is emerging as a significant domestic supplier in China’s semiconductor packaging supply chain. The company is investing heavily in technical capabilities.

Innovation Highlights:

• Developing films for advanced chip packaging
• Expanding into transparent polyimide films
• Collaborating with local universities on R&D

Get Full Report Here: PI Thermal Film Market – View in Detailed Research Report

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🌍 Outlook: The Future of PI Thermal Films Is High-Tech and High-Growth

The PI thermal film market is undergoing significant transformation as new applications emerge in advanced electronics. While traditional applications still dominate volume, the industry is investing heavily in ultra-thin conductive films and specialty formulations for next-generation technologies.

📈 Key Trends Shaping the Market:

• Accelerating demand from advanced semiconductor packaging
• Expansion of 5G and IoT device production
• Development of hybrid PI-composite materials
• Growing adoption in electric vehicle power electronics

Get Full Report Here: PI Thermal Film Market – View in Detailed Research Report

The companies listed above are not only supplying critical materials—they’re enabling the technological revolution in electronics through continuous innovation.