Top 10 Companies in the Corona Resistant PI Film Industry (2025): Market Leaders in High-Performance Electrical Insulation

In Business Insights
September 12, 2025

The Global Corona Resistant PI Film Market was valued at USD 1.58 Billion in 2023 and is projected to reach USD 2.73 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 7.8% during the forecast period (2024–2030). This growth is driven by accelerating demand from electric vehicles, aerospace systems, and advanced electronics that require durable dielectric materials capable of withstanding extreme electrical and thermal stresses.

As industries prioritize energy efficiency and miniaturization, corona-resistant polyimide films have become critical for insulating motors, generators, and high-voltage cables. In this analysis, we examine the Top 10 Companies in the Corona Resistant PI Film Industry—material science innovators driving technical advancements while expanding global production capacities.


🔟 1. DuPont

Headquarters: Wilmington, Delaware, USA
Key Offering: Kapton® CR, Pyralux® CR

DuPont maintains technological leadership with its Kapton® CR series, featuring ceramic-filled formulations that achieve 10,000+ hours of corona resistance at 300°C. The company supplies major EV manufacturers and aerospace contractors with ultra-reliable insulation films.

Technology Advantages:

  • Nano-alumina dispersion technology extends film lifespan by 5x
  • Thin films (12.5-25μm) with 7kV/mm dielectric strength
  • 200% capacity expansion completed in 2023

Download FREE Sample Report: https://www.24chemicalresearch.com/download-sample/236326/global-corona-resistant-pi-film-forecast-market-2023-2030-643


9️⃣ 2. Kaneka Corporation

Headquarters: Osaka, Japan
Key Offering: Apical® AH, Apical® AV

Kaneka dominates Asia’s market for ultra-thin (<15μm) corona-resistant films used in flexible electronics. Their materials enable miniaturization in smartphone displays and wearables without compromising insulation performance.

Technology Advantages:

  • CTE matched to silicon (3ppm/°C) for semiconductor packaging
  • Hydrolysis-resistant formulations for humid environments

8️⃣ 3. Isovolta AG

Headquarters: Leoben, Austria
Key Offering: Isomid® CR

This European specialist produces PI films engineered for rotating machinery in renewable energy systems. Their products withstand 50kV/mm partial discharge for over 20,000 hours in wind turbine generators.

Technology Advantages:

  • Cryogenic-grade films stable at -269°C
  • REACH and RoHS 3.0 compliant formulations

7️⃣ 4. Krempel GmbH

Headquarters: Vaihingen, Germany
Key Offering: POMIKAL® CR

Krempel supplies multilayer PI films with patented alumina reinforcement for industrial motor insulation. Their materials demonstrate 100+ hour corona resistance at 350°C in Class H applications.

Technology Advantages:

  • Halogen-free compositions meeting IEC 60317-3-2
  • UL-recognized insulation systems

Download FREE Sample Report: https://www.24chemicalresearch.com/download-sample/236326/global-corona-resistant-pi-film-forecast-market-2023-2030-643


6️⃣ 5. American Durafilm

Headquarters: Holliston, Massachusetts, USA
Key Offering: ADCR Series

Specializing in aerospace applications, American Durafilm produces ultra-thin PI films with <0.1% volatile content for satellite and spacecraft insulation systems.

Technology Advantages:

  • NASA-compliant low outgassing properties
  • Mil-spec MIL-P-46183B certified

5️⃣ 6. Zhuzhou Times New Material Technology

Headquarters: Hunan, China
Key Offering: TMT CR-PI

As China’s leading domestic supplier, Zhuzhou provides cost-competitive PI films for EV traction motors. Their 2023 production reached 3,000 tons annually for domestic OEMs.

Technology Advantages:

  • Localized supply chain with 48-hour delivery
  • GT/T 13542.6 standard compliance

4️⃣ 7. Suzhou Kying Industrial Materials

Headquarters: Jiangsu, China
Key Offering: SKYPITM CR

Suzhou Kying focuses on mid-thickness films (50-125μm) for appliance and power tool motors. Their proprietary surface treatment increases adhesive bond strength by 40%.

Technology Advantages:

  • Automated optical inspection systems
  • RoHS 3.0 compliant products

3️⃣ 8. Tianjin YiHang Electronic Technology

Headquarters: Tianjin, China
Key Offering: YH-CR Series

This FPC specialist produces dimensionally stable films (<1.5% shrinkage at 200°C) for flexible printed circuits in foldable displays and wearables.

Technology Advantages:

  • Low Dk (3.1) and Df (0.002) at 1GHz
  • 8μm films for ultra-thin applications

2️⃣ 9. Guangzhou Ruide Technologie

Headquarters: Guangdong, China
Key Offering: GRT-CRPI

Ruide focuses on EV battery insulation with PI films that retain >85% tensile strength after 1000 hours at 200°C in lithium-ion battery applications.

Technology Advantages:

  • UL94 V-0 flame retardant grades
  • Custom widths up to 1500mm

1️⃣ 10. Wuxi Shun Xuan New Materials

Headquarters: Jiangsu, China
Key Offering: SXCR-PI

Wuxi Shun Xuan specializes in high-voltage insulation (>15kV) with ceramic-modified films that triple time-to-failure under corona stress versus standard materials.

Technology Advantages:

  • 500°C capability for aerospace applications
  • Strategic academic R&D partnerships

Get Full Report Here: https://www.24chemicalresearch.com/reports/236326/global-corona-resistant-pi-film-forecast-market-2023-2030-643


🌍 Market Outlook: Next-Generation PI Film Technologies

The corona-resistant PI film sector is undergoing transformation as manufacturers develop advanced materials meeting stricter performance and sustainability requirements.

📈 Key Development Trends:

  • EV motor insulation applications projected to capture 35% market share by 2028
  • Hybrid PI-silica films with enhanced thermal conductivity (1.5W/mK)
  • Bio-based polyimide monomers reducing environmental impact
  • AI-driven quality control systems improving yield rates

Get Full Report Here: https://www.24chemicalresearch.com/reports/236326/global-corona-resistant-pi-film-forecast-market-2023-2030-643

The profiled companies represent the vanguard of material innovation, developing critical insulation solutions that enable electrification across transportation, energy, and industrial sectors.