PEI (Polyetherimide) is an amorphous engineering thermoplastic offering exceptional mechanical, thermal and electrical properties. It can be easily machined with conventional metalworking tools, and can be painted, hot stamped, printed or metallized.
Benefits of PEI (Polyetherimide, ULTEM™)
Excellent dimensional stability
Good UV and hydrolysis resistance
Transparent to visible infrared and microwave radiation
Inherent flame retardancy
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Suppliers / Brands
Common Applications
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Aerospace
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Automotive
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Bearings & Bushings
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Chemical Processing
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Food & Beverage Preparation/Processing
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Gaskets & Seals
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Gears
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Healthcare / Medical
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Heavy Equipment
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Machine Shops
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Milling & Mining
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Oil & Gas
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Packaging & Conveying Equipment
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Semiconductors & Electronics
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Sterilization Trays
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Thermoformers
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Valves & Fittings
Physical Properties
Units | ASTM Test | PEI | |
---|---|---|---|
Tensile strength @ break @ 73°F | psi | D638 | 10700 – 15600 |
Flexural modulus @ 73°F | psi | D790 | 16700 – 25700 |
Izod impact (notched) | ft-lbs/in of notch | D256 | 0.38 – 1.4 |
Water absorption @ 73°F – 24 hours | % | D570 | 0.25 – 0.27 |
Coefficient of linear thermal expansion (CLTE) | (in/in F) | D696 | 3.0E-5 to 3.1E-5 |
Coefficient of friction | D1894 | 0.23 – 0.30 | |
Taber Abrasion Resistance | mg | D1044 | 9.25 – 10.7 |
Deflection Temperature Under Load @ 264 psi | °F | D648 | 385 – 446 |
* Technical Data is provided courtesy of UL Prospector (www.ulprospector.com) and IAPD (www.IAPD.org).
Data is to be considered representative and is provided for guidance only. All product performance must be verified by the user under actual application conditions.