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PEI (ULTEM™)

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.

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<p>Excellent dimensional stability</p>

Excellent dimensional stability

<p>Good UV and hydrolysis resistance</p>

Good UV and hydrolysis resistance

<p>Transparent to visible infrared and microwave radiation</p>

Transparent to visible infrared and microwave radiation

<p>Inherent flame retardancy</p>

Inherent flame retardancy

Suppliers / Brands

Duratron®
Ensinger
TECAPEI
Polymer Industries
MECHETEC®
Rochling
SUSTAPEI

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.