High Heat, High Performance Resin
Polyetherimide (PEI) is a high-performance thermoplastic known for its exceptional heat resistance, strength, and dimensional stability.
With its amber transparency and high glass transition temperature (Tg), PEI is used in demanding applications where mechanical, thermal, and chemical resistance are essential.

Engineered for Extreme Conditions
Polyetherimide offers a powerful combination of mechanical strength, thermal stability, and chemical resistance. These characteristics make it ideal for high-performance applications across demanding industries like automotive, medical, and industrial manufacturing.
Characteristics:
- High heat resistance
- Excellent chemical resistance
- High modulus
- Great dimensional stability
- Inherent flame resistance
- Resistant to oils and greases
- Clear Amber Color
- High continuous-use temperature
- Very high glass transition temperature
- Excellent creep resistance

Reliable in Tough Environments
Polyetherimide is trusted in industries where performance can’t be compromised. It’s often used in everything from under-the-hood automotive parts to sterilizable medical devices and food service components, thanks to its durability, heat resistance, and exceptional dimensional stability.
- Medical device housings
- Food service components
- Electrical insulators
- Industrial machinery parts
- Circuit board components
- Diagnostic equipment
- Sterilization trays

Our Suppliers
Turning Plastics Into Possibilities
With decades of experience in resin distribution, the PolySource team takes pride in providing reliable product delivery, expert consulting, and hands-on support to ensure every project thrives. From application development to problem-solving, we’re committed to delivering value and driving your success forward.




