Ultem® (polytherimide)

ULTEM resin is an amorphous thermoplastic polytherimide used in medical, aircraft and aerospace, electronics manufacturing, microwave communications, etc.

Material Specifications
Physical Properties Units Test Ultem®
Density lb/in.3
g/cm3		 D792 0.046
1.28
Water Absorption % D570 0.25
Mechanical Properties Units Test Ultem®
Tensile Strength psi D638 16,500
Tensile Modulespsi
 D638 475,000
Tensile Elongation at Break Tensile % D638 80
Flexural Strength psi
 D790 20,000
Flexural Modulus psi (Kpsi) D790 500,000
Compressive Strength psi D695 22,000
Compressive Modulus psi D695 480,000
Hardness Rockwell (Shore D) - D785 M112 / R125
Izod Impact Notched ft. - lb./in. D256 0.5
Thermal Properties Units Test Ultem®
Coefficient of Linear
Thermal Expansion 		10-5 in./in./°F D696 3.1
Heat Deflection Temperature at 264 psi °F/°C D648 392 / 200
Melting Temperature°F/°C D3418 419 / 215
Max. Use Temperature°F/°C - 340 / 171
Thermal Conductivity BTU- in./ft.2-hr.- °F
x10 - 4 cal/cm - sec. - °C		 C177 0.90
3.10
Flammability Rating - UL94 V-0
Electrical Properties Units Test Ultem®
Dielectric Strength (V-mil) D149 830
Dielectric Constant at 1 MHz (60Hz) D150 3.15
Dissipation Factor at 1 MHz (60Hz) D150 0.0013
Volume Resistivity (ohm - cm) at 50% RH D257 6.7 X 1017

The information supplied is not to be taken as a warranty or representation for which Technical Products, Inc. assumes legal responsibility, is offered solely for your consideration, investigation and verification. All risk of use, singly or in combination with other products, whether or not in accordance with the instructions, directions or suggestions is borne by the user.