Ultem (Polyetherimide)

Plastics International can custom cut to size Ultem rod and sheet. Even if you need low minimums or an odd size, we can meet your requirements. For fast turn-around and delivery of Ultem sheet and rod, you can count on Plastics International.

ULTEM® (Polyetherimide)

ULTEM is an amorphous thermoplastic polyetherimide (PEI) material with exceptional mechanical, thermal, and electrical properties. Natural ULTEM® 1000 (unreinforced) is a translucent amber material in thin cross sections. Reinforcing the basic ULTEM® with glass fiber increases tensile strength and rigidity while improving dimensional stability.

• Excellent mechanical strength. ULTEM® exhibits high tensile strength at room temperature and retains a significant portion of this strength at elevated temperatures. Glass fibers further increase high-temperature strength.
• Outstanding heat resistance. ULTEM® retains its physical properties at elevated temperatures.
• Exceptional resistance to environmental forces. Environmental characteristics of ULTEM® include it’s stress resistance
• Inherent flame resistance with low smoke evolution
• High mechanical strength
• High dielectric strength and stability. The high dielectric strength and constant values of ULTEM® make it an excellent electrical insulator.  
• Flammability is UL94 VO
• Low dissipation factor over a wide range of frequencies
• Excellent machine-ability and finishing characteristics. ULTEM® can be easily machined with conventional metalworking tools, painted, hot stamped, printed, or metalized.
• Natural Grade is FDS, NSF, and USP Class VI compliant