ASTM D5205 PEI0110G30A99269
ULTEM® 1000 PEI/Polyetherimide is a high performance amorphous thermoplastic material. Stock shapes made from ULTEM® PEI resins possess a combination of useful characteristics, including high strength at elevated temperatures, high modulus and broad chemical resistance. ULTEM® PEI stock shapes are inherently flame resistant with low smoke emission. ULTEM® PEI stock shapes display property retention and resistance to environmental stress cracking when exposed to a wide variety of chemicals. The standard color of ULTEM® PEI is light amber. Glass filled grades appear tan or greenish in color.
Unit of Measure

Sheet Size

N/A 12 x 12 in


N/A 3.500 in


N/A 27.50 lb/ft²

Specific Gravity (ASTM D792)

N/A 1.51

Hardness - Rockwell (ASTM D785)

N/A M114

Water Absorption - 24 hrs, 73°F (ASTM D570)

N/A 0.16 %

Water Absorption - Equilibrium, 73°F (ASTM D570)

N/A 0.9 %

Tensile Strength at Yield - 73°F (ASTM D638)

N/A 24500 psi

Tensile Strength at Break - 73°F

N/A 23000 psi

Tensile Modulus - 73°F (ASTM D638)

N/A 1300000 psi

Elongation at Break, 73°F (ASTM D638)

N/A 3 %

Flexural Strength - 73°F (ASTM D790)

N/A 33000 psi

Flexural Modulus (482ºF/250ºC)

N/A 1300000 psi

Compressive Strength at Yield, 73°F (ASTM D695)

N/A 30700 psi

Compressive Modulus

N/A 938000 psi

Shear Strength - Ultimate, 73°F

N/A 14000 psi

Impact Strength, Notched at 73°F (ASTM D256)

N/A 2 ft·lb/in

Impact Strength, Un-notched

N/A 8 ft·lb/in

Coefficient of Linear Thermal Expansion

N/A 1.1 x 10-5 in/in/ºF

Deflection Temperature at 66 psi, 0.250" (ASTM D648)

N/A 414 ºF

Deflection Temperature at 264 psi, 0.250" (ASTM D648)

N/A 410 ºF

Flammability Rating (UL 94)

N/A V0

Dielectric Strength - In Air (ASTM D149)

N/A 770 V/m

Dielectric Strength - In Oil (ASTM D149)

N/A 630 V/m

Volume Resistivity - 0.062" (ASTM D257)

N/A 3.0 x 1016 ohm·cm


  • UL94 V-O.
  • Extremely Low NBS Smoke Evolution.
  • FDA Compliant (Natural Un-filled).
  • Superior Limiting Oxygen Index.
  • Broad Chemical Resistance.
  • High Dielectric Strength & Stability.
  • Exceptional Mechanical Strength.


  • Burn-in Test Sockets
  • Connectors
  • Automotive Components
  • Valves
  • Electrical Fittings
  • Microwave Components
  • Medical Components