Polyetherimide

MATERIAL DATA SHEET The information contained herein is typical and intended for REFERENCE USE ONLY. This information should NOT be used as a basis for design, manufacturing or quality assurance purposes. Please contact us for complete, manufacturer-approved material property data sheets. All values below are at 72°F (23°) unless otherwise noted.

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Polyetherimide Specifications

Description

An amorphous thermoplastic polyetherimide, stock shapes from this resin possess a combination of useful characteristics, including high strength at elevated temperatures, high modulus, and broad chemical resistance. Polyetherimide stock shapes are inherently flame resistant with low smoke emission. Polyetherimide stock shapes display property retention and resistance to environmental stress cracking when exposed to a wide variety of chemicals. The standard color of Polyetherimide stock shapes is light amber. Glass filled grades appear tan or greenish in color. Polyetherimide rod, slab, and tubular bar are air annealed for stress relief.

Applications

Burn-in test sockets • Connectors • Automotive components • Valves, electrical fittings

Advantages of Polyetherimide

Inherent flame resistance • Extremely low NBS smoke evolution • Superior limiting oxygen index • Exceptional tensile and flexural strength • Broad chemical resistance • UV stable • FDA compliant

Manufacturing Capabilities

Rod: 1/4” to 8” diameter • Sheet: .035” to 1/4” thick • Slab: 3/8” to 4” thick • Film: .001” to .029” thick

Color/Grades

Amber • (custom colors available)

Typical Properties of Polyetherimide

	Units	ASTM Test	Result
Mechanical Properties
Tensile Strength @yeild	psi	D638	15,200
Tensile Strength @break	psi	D638	-
Tensile Modulus	psi	D638	430,000
Tensile Elongation @yield	%	D638	7.0
Tensile Elongation @break	%	D638	60.0
Flexural Strength @yield	psi	D790	22,000
Flexural Modulus	psi	D790	480,000
Compressive Strength @ yield	psi	D695	21,900
Compressive Modulus	psi	D695	480,000
Izod Impact Strength Un-notched	ft·lbs/in	D256	25.0
Izod Impact Strength Notched @ 73°F	ft·lbs/in	D256	1.0
Hardness (R, M, L or D)	-	D7852, D2240	M109
Thermal Properties
Heat Deflection Temp. @66 psi	°F	D648	410
Heat Deflection Temp. @264 psi	°F	D648	392
Coefficient of Thermal Expansion	in/in/°F	D696	3.1 X 10-5
Flammability Rating-UL94	-	-	@ .75" 5VA
Thermal Conductivity	(BTU•in)/(hr•ft2•°F)	C177	1.53
Limiting Oxygen Index	%	D2863	47.0
Electrical Properties
Dielectric Strength	V/mil	D149	831
Dielectric Constant @ 1kHz	-	D150	3.15
Dissipation Factor @ 1 kHz	-	D150	0.0013
Volume Resistivity	ohm•cm	D257	1.0 x 1017
Optical Properties
Haze	%	D1746	-
Transparency	%	D1746	-
Other Properties
Specific Gravity	-	D792	1.27
Water Absorption @24 hours	%	D570	0.25