About Ultem 1000|Polyetherimide (PEI). A high-temperature amorphous thermoplastic with continuous use to 340°F. Transparent amber color. Excellent strength, stiffness, and dimensional stability. Inherently flame-retardant with low smoke generation. Machines well with standard tooling. Used for aerospace interior panels, medical devices, electrical connectors, and food service equipment. Much cheaper than
PEEK or
Torlon 4301. Compare to PEEK (higher temperature, much more expensive) and
Polycarbonate (lower temperature, better transparency, cheaper).