High-Temperature Performance
PEEK and PEI (Ultem) are leading high-temperature engineering plastics.
Key Differences
| Property | PEEK | PEI |
|---|---|---|
| Continuous Use Temp | 250°C | 170°C |
| Chemical Resistance | Excellent | Good |
| Cost | $150-300/kg | $30-60/kg |
Frequently Asked Questions
Is PEEK stronger than PEI?
At room temperature, PEI has higher tensile strength. However, PEEK maintains properties better at elevated temperatures.
Where can I source PEEK and PEI?
Nylonplastic supplies both materials in rod, sheet, and tube forms.
PEEK vs PEI — Frequently Asked Questions
Is PEEK stronger than PEI?
At room temperature, PEI has higher tensile strength. PEEK maintains properties better at elevated temperatures.
Where can I source PEEK and PEI materials?
Nylonplastic supplies both materials in rod, sheet, and tube forms.
