​PEI Raw Materials

PEI (Polyetherimide) is a high-performance engineering thermoplastic known for its excellent mechanical strength, dimensional stability, heat resistance, and flame-retardant properties.
The PEI Raw Material or PEI Resin offers superior thermal and electrical performance, making it a preferred choice for precision components in demanding environments.

As a top-grade PEI Plastic Material, it combines outstanding stiffness and toughness with the ability to maintain properties over a wide temperature range. Whether used for injection molding, extrusion, or machining, PEI Material delivers consistent and reliable performance.

Key Features of PEI Material

High Heat Resistance
Continuous service temperature up to 170°C–200°C, with excellent thermal stability and no deformation.

Outstanding Mechanical Strength
High rigidity and impact resistance, ensuring dimensional accuracy and structural integrity.

Excellent Electrical Insulation
High dielectric strength and low dissipation factor, ideal for electrical and electronic applications.

Flame Retardant (UL94 V-0)
Naturally flame-resistant without requiring additional additives.

Chemical and Radiation Resistance
Stable against a wide range of solvents, acids, and hydrocarbons, with good resistance to gamma radiation and steam sterilization.

Transparency and Aesthetic Options
Naturally amber transparent, also available in customized colors.

Technical Specifications

Applications of PEI Resin

Thanks to its balance of thermal, mechanical, and electrical properties, PEI Raw Material is widely used in high-end industries such as:

Industrial Applications

• Electrical connectors, switches, and insulating components

• Compressor and pump parts

• Semiconductor equipment components

Aerospace and Automotive

• Aircraft interior panels and connectors

• Automotive lighting and under-the-hood components

Medical and Laboratory

• Sterilizable medical instruments and housings

• Dental and surgical device components

Electronics

• Printed circuit board supports

• Electrical coil bobbins and insulators

Consumer Products

• Office machine components and precision housings

Advantages of Using PEI Plastic Material

• High thermal stability for continuous use at elevated temperatures

• Dimensional stability with excellent long-term strength retention

• Easy processing through injection molding, extrusion, and machining

• Excellent chemical resistance against oils, alcohols, and weak acids

• Environmentally safe, halogen-free, and RoHS compliant

Processing Guidelines

• Drying: 150°C for 4 hours before processing

• Melt Temperature: 340°C – 400°C

• Mold Temperature: 150°C – 180°C

• Recommended Processes: Injection molding, extrusion, compression molding

Packaging and Storage

• Form: Granules or pellets

• Packaging: 25 kg per bag

• Storage: Store in a cool, dry place and avoid exposure to moisture

FAQ

Q1: What is PEI material used for?
A1: PEI material is used in aerospace, automotive, electronics, and medical industries where high heat resistance and dimensional stability are required.

Q2: Is PEI better than PEEK?
A2: PEI provides similar thermal resistance at a lower cost, while PEEK offers slightly higher chemical resistance.

Q3: Can PEI be sterilized?
A3: Yes, PEI can withstand repeated autoclave cycles and gamma sterilization without losing its properties.

Q4: What color is PEI resin?
A4: PEI resin is naturally amber-transparent but can be customized in other colors if needed.

Q5: Do you offer modified PEI resin?
A5: Yes, we offer PEI grades reinforced with glass fiber, carbon fiber, or color masterbatch upon request.

Your Reliable Supplier of PEI Raw Materials

We provide high-purity PEI resin and PEI plastic raw materials that meet international standards for performance, stability, and safety.
Our PEI materials are ideal for engineering plastics manufacturing and precision molding applications.