Engineering Thermoplastics
PEI Standard — Polyetherimide Standard
PEI offers a superior combination of properties including high strength and stiffness over a wide temperature range, excellent thermal stability, broad chemical resistance, inherent flame retardancy, and good electrical properties.
PEIUltemSaflex PEI
Manufacturers
1
Grades
2
Applications
4
Equivalents
2
Physical Properties
- Density
- 1.27-1.29 g/cm³
- Water Absorption (24h)
- 0.2-0.4 %
- Transparency
- Amber (transparent)
- Shrinkage
- 0.5-0.7 %
Mechanical Properties
- Young's Modulus
- 3.0-3.5 GPa
- Tensile Strength
- 70-90 MPa
- Elongation at Break
- 30-60 %
- Impact Strength (Izod)
- 10-15 kJ/m
Thermal Properties
- Glass Transition Temperature
- 210-217 °C
- Melting Point
- N/A (amorphous)
- Continuous Service Temperature
- 160-170 °C
- Heat Deflection Temperature
- 190-205 °C (1.8 MPa)
Electrical Properties
- Dielectric Constant
- 3.1-3.8
- Volume Resistivity
- 10^14-10^16 Ohm-cm
- Dielectric Strength
- 15-20 kV/mm
Chemical Resistance
- Acids
- Good
- Bases
- Fair
- Solvents
- Good (alcohols, oils, weak acids)
- UV Resistance
- Good
Sustainability
- Recyclability
- Recyclable (difficult)
- Recycling Code
- 7 (Other)
- Carbon Footprint
- High
Manufacturing compatibility
Injection MoldingExtrusion
Applications
Aerospace interiors
Medical instruments
Electrical connectors
Automotive components
Available grades
PEI ULTEM 1010PEI ULTEM 9085