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PEI (Ultem)

A high-heat engineering plastic molded for parts that need both thermal and electrical performance.

Example: molded PEI (Ultem)

What is it?

A high-heat plastic with strong electrical insulation properties, semi-transparent in its natural state.

Key behavior

High heat resistance combined with excellent dielectric strength and inherent flame resistance.

Why choose it

Parts needing both heat resistance and electrical insulation — aircraft interiors, medical trays, connectors.

Applications

Aircraft interior components, medical sterilization trays, electrical connectors.

Processing notes

Naturally flame-resistant with low smoke generation, valuable for regulated applications.

Properties

Density1.27 g/cm3
Typical HardnessRockwell M109-M114
Typical Strength15,000-16,000 PSI tensile (unfilled)
Lead TimeConfirmed per RFQ
FinishingConfirmed per RFQ
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