Global Polyetherimide (PEI) Market Strategic Research Report

Scope of the Report

The global Polyetherimide (PEI) market size is predicted to grow from US$ 664 million in 2025 to US$ 871 million in 2032; it is expected to grow at a CAGR of 4.2% from 2026 to 2032.

Polyetherimide (PEI) is an amorphous, amber-to-transparent thermoplastic with characteristics similar to the related plastic PEEK. Relative to PEEK, PEI is cheaper, but is lower in impact strength and usable temperature.

PEI is a high-performance engineering plastic characterized by exceptional high-temperature resistance and dimensional stability, as well as chemical resistance, flame retardancy, excellent electrical properties, high strength, and high rigidity.

PEI resin is widely used in applications such as high-temperature terminals, IC sockets, lighting equipment, FPCBs (flexible printed circuit boards), fluid handling equipment, aircraft interior components, medical devices, and household appliances.

PEI Market Drivers

1. Trend toward high-temperature operation and miniaturization in electrical and electronic equipment

Components such as electronic connectors, relays, chip testing equipment, fiber-optic connectors, 5G base stations, and data communication equipment demand materials that can maintain dimensional stability during reflow soldering and in long-term high-temperature environments, retain sufficient mechanical strength even with thin-wall designs, and offer flame retardancy and low smoke emission. SABIC has positioned its PEI products for applications including 5G infrastructure, AI equipment, smart electronics, robotics, and high-performance electrical systems; the electrical and electronics sector is a primary source of demand for PEI.

2. Expansion of new energy vehicles (NEVs) and high-voltage electrical systems

NEVs have increased the demand for highly heat-resistant insulating materials in components such as high-voltage connectors, inverters, electric motors, batteries, charging equipment, and thermal management systems. PEI combines heat resistance, electrical insulation, low warpage, and precision molding capabilities, making it well-suited for trends toward vehicle electrification, as well as the miniaturization and lightweighting of ADAS (Advanced Driver Assistance Systems).

3. Lightweighting and flame retardancy requirements in aerospace

Aircraft interiors and onboard equipment require not only weight reduction but also compliance with strict FST (Flame, Smoke, and Toxicity) performance standards. PEI’s inherent flame retardancy, low smoke emission, and high specific strength enable it to replace certain aluminum, steel, and thermoset materials.

This report presents a comprehensive overview of the global Polyetherimide (PEI) market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• Unreinforced
• Reinforced

Segment by Grade

• General Purpose Grade
• Wear and Chemical Resistant Grade
• Aviation Grade
• High Heat Grade
• Other

Segment by Flowability

• Injection Molding
• Extrusion

Segment by Application

• Electronics
• Automotive
• Medical
• Tableware/Catering
• Aircraft
• Others

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global Polyetherimide (PEI) market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Electronics, Automotive, Medical evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact