Ultem® (polyetherimide)

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Overview
Performance Characteristics
Typical Applications
Typical Properties
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Polyetherimide Ultem sheet, rod

BRANDS
Susta® PEI
TECAPEI™

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Also, visit our technical resources section
Overview Ultem® is a semi-transparent high temperature plastic material with extremely high strength and stiffness. Ultem is resistant to hot water and steam and can withstand repeated cycles in a steam autoclave.

Ultem has outstanding electrical properties and one of the highest dielectric strengths of any commercially available thermoplastic material.

Ultem is often used instead of polysulfone when superior strength, stiffness, or temperature resistance is required.

Ultem is available in glass-filled grades with enhanced strength and stiffness.

Ultem® Standard Sizes

SHEET 24"x48" (0.03"-4.0" thick)
ROD diameter 0.25"-8.0"

  • Length, width, thickness, and diameter tolerances vary by size and by manufacturer
  • Custom sizes and colors available upon request
  • Many of our plastic materials are available as films with thicknesses of 0.029" or less

Ultem® Grades and Colors

  • Grades include:
    • FDA compliant
    • USP Class VI compliant
  • Wide variety of colors

NOTE: Several grades of Ultem® are available. For additional information on Ultem® plastic materials, contact your local Curbell Plastics representative or call Curbell at 1-888-287-2355.
Click to view
Polyetherimide Ultem sheet, rod

BRANDS
Susta® PEI
TECAPEI™

DOWNLOAD TO LEARN MORE


Also, visit our technical resources section
Performance Characteristics
  • Extremely strong and stiff
  • High dielectric strength
  • Resistant to hydrolysis when exposed to hot water and steam
  • Can withstand repeated sterilization cycles in a steam autoclave
  • Good thermoforming properties
Click to view
Polyetherimide Ultem sheet, rod

BRANDS
Susta® PEI
TECAPEI™

DOWNLOAD TO LEARN MORE


Also, visit our technical resources section
Typical Applications
Typical Properties
UNITS ASTM TEST ULTEM®
Tensile strength psi D-638 15,200
Flexural modulus psi D-790 480,000
Izod impact (notched) ft-lbs/in of notch D-256 1.0
Heat deflection temperature @ 264 psi °F D-648 392
Maximum continuous service temperature in air °F 338
Water absorption (immersion 24 hours) % D-570 0.25
Coefficient of linear thermal expansion in/in/°Fx10-5 D-696 3.1
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.

TENSILE STRENGTH FLEXURAL MODULUS DIELECTRIC STRENGTH (short term)
of Ultem® compared with
Radel R® and Polysulfone
of Ultem® compared with
Radel R® and Polysulfone
of Ultem® compared with
Radel R® and Polysulfone
Bar chart - Ultem® tensile strength compared with 
Radel RŪ and polysulfone Bar chart - Ultem® flexural modulus compared with 
Radel RŪ and polysulfone Bar chart - Ultem® dielectric strength compared with 
Radel RŪ and polysulfone
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Download the Curbell Plastics Engineering Guide
NEED MORE INFORMATION?
Contact Curbell Plastics at 1-888-287-2355 for more specific information about Ultem plastic or complete our request for quote online form.