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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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Excellent dimensional stability

Good UV and hydrolysis resistance

Transparent to visible infrared and microwave radiation

Inherent flame retardancy

Technical Resources

MCAM – Design & Fabrication Guide

Suppliers / Brands

Duratron®

Ensinger

TECAPEI

Polymer Industries

MECHETEC®

Rochling

SUSTAPEI

Common Applications

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
Deflection Temperature Under Load @ 264 psi	°F	D648	385 – 446
Water absorption @ 73°F – 24 hours	%	D570	0.25 – 0.27
Compressive strength	psi	D695	102 – 22600
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

About PEI (ULTEM™)

PEI (Polyetherimide), also known as ULTEM™, Duratron® or Torlon®, 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.

PEI is dimensionally stable and offers good hydrolytic stability. It combines high heat resistance, excellent electrical properties, and inherent UV and flame resistance along with low smoke generation. However, it has very limited resistance to chemicals. It is transparent to visible infrared and microwave radiation.

Polymershapes can provide you PEI sheet or rod, produced with SABIC ULTEM™ resin, in a variety of sizes and grades – such as unfilled, glass filled and foam – as well as PEI film. We proudly offer PEI from leading edge suppliers including Duratron® from Quadrant Engineering Plastics. You can rely on our expert fabrication capabilities to ensure you get just the right amount of material for your projects: We will custom cut the sheet or plate you need in the length, width and thickness you want.

With Engineering Plastics from Polymershapes you can go anywhere your imagination wants to go! We offer a vast inventory of material solutions, and a wide range of exceptional value-added services that will help you exceed your customers’ expectations. Our experienced teams stand ready to deliver best-in-class conversion and fabrication capabilities, customer service and convenience.

Call upon our experienced and knowledgeable team to help you meet your needs for ULTEM PEI, and much, much more! – Contact your local Polymershapes facility today!