Alro Plastics

To contact us via e-mail,
click here or call us at:
(800) 877-2576

Products/Services

More About Alro Plastics

News & Links

Tech Info & Inquiries

Quality System

View ISO Certificate

Literature

Credit Application

ULTEM^® (Polyetherimide)

An amorphous thermoplastic polyetherimide, stock shapes from Ultem resin possess a combination of useful characteristics, including high strength at elevated temperatures (340°F continuous), high modulus, and broad chemical resistance. Ultem stock shapes are inherently flame resistant with low smoke emission. Ultem stock shapes display property retention and resistance to environmental stress cracking when exposed to a wide variety of chemicals. The standard color of Ultem stock shapes is light amber. Glass filled grades appear tan or greenish in color.

The following physical property information is based on typical values of the base polyetherimide resin (PEI).

Advantages of Ultem

High strength & heat resistance, plus excellent dielectric properties
Inherent flame resistance
Superior limiting oxygen index
Exceptional tensile and flexural strength
Broad chemical resistance
UV stable
FDA compliant & USP Class VI compliant
UL 94-V-O rated with low smoke

Applications Include

Burn-in test sockets
Connectors
Automotive components
Valves
Electrical fittings
Structural probes
Manifolds
Insulators
Clamps

Manufacturing Capabilities

Rod: 1/4" to 8" diameter
Sheet: 0.35" to 1/4" thick x 2' x 4'
Slab: 3/8" to 4" thick 2' x 4'
Film: .001" to .029"

Colors/Grades

Amber - Unfilled
Tan/Green - Glass Filled
(Custom colors available)

Recommended Operating Limits	ASTM	UNITS	UNFILLED	20 %	30 %
Mechanical
Tensile Strength @ Yield Impact Strength @ Break Tensile Modulus Tensile Elongation @ Yield Tensile Elongation @ Break Flexural Strength @ Yield Flexural Modulus Compressive Strength @ Yield Compressive Modulus Izod Impact Strength Un-notched Notched @ 73^oF Hardness (R, M, L, or D)	D638 D638 D638 D638 D638 D790 D790 D695 D695 D256 D256 D7852 D2240	psi psi psi % % psi psi psi psi ft•lbs/in ft•lbs/in --	15,200 -- 430,000 7.0 60.0 22,000 480,000 21,900 480,000 25.0 1.0 M109	-- 20,100 1,000,000 -- 3.0 30,000 900,000 28,700 809,000 9.0 1.6 M114	-- 24,500 1,300,000 -- 3.0 33,000 1,300,000 30,700 938,000 8.0 2.0 M114
Thermal
Heat Deflection Temperature @66 psi @264 psi Coefficient of Thermal Exp. Flammability Rating--UL94 Thermal Conductivity Limiting Oxygen Index	D648 D648 D696 -- C177 D2863	^oF ^oF in/in/^oF -- (BTU•in)/(hr•ft²•^oF) %	410 392 3.1 x 10-5 @ .075" 5VA 1.53 47.0	410 408 1.4 x 10-5 @ 0.16" V-0 1.70 50.0	414 410 1.1 x 10^-5 @ 0.16" V-0 1.80 50.0
Electrical
Dielectric Strength Dielectric Constant @ 1kHz Dissipation Factor @ 1kHz Volume Resistivity	D149 D150 D150 D257	V/mil -- -- ohm•cm	831 3.15 0.0013 1.0 x10¹⁷	670 3.50 0.0015 7 x 10¹⁶	770 3.70 0.0015 3x10¹⁶
Optical
Haze Transparency	D1746 D1746	% %	-- --	-- --	-- --
Other
Specific Gravity Water Absorption @ 24 hours	D792 D570	-- %	1.27 0.25	1.42 0.19	1.51 0.16

Ultem® is a registered trademark of GE Plastics.

back to top