Polyetherimide (PEI; branded as Ultem[1]) is an amorphous, amber-to-transparent thermoplastic with characteristics similar to the related plastic PEEK. When comparing PEI to PEEK, the former is cheaper but has lower impact strength and a tighter temperature range.

Mar 27, 2025 · The ULTEM™ resin family of amorphous thermoplastic polyetherimide (PEI) materials offers outstanding elevated thermal resistance, high strength and stiffness, and broad chemical resistance. ULTEM resins are available in transparent and opaque custom colors, as well as glass filled grades.

Ultem® (polyetherimide) is a semi-transparent high strength plastic material that can operate in high service temperature environments. Ultem® is resistant to hot water and steam and can withstand repeated cycles in a steam autoclave.

ULTEM is an amorphous thermoplastic polyetherimide (PEI) material that combines exceptional mechanical, thermal, and electrical properties. Natural ULTEM® 1000 (unreinforced) is a translucent amber material.

Feb 4, 2020 · ULTEM stands out from other high-performance polymers because it is uniquely designed to remain mechanically stable under extreme conditions. It can withstand temperatures upwards of 217°C for extended periods of time and remain dimensionally stable …

Ultem, also known as polyetherimide (PEI), is a high-performance thermoplastic renowned for its exceptional mechanical, thermal, and chemical properties.

PEI (Polyetherimide) Ultem ® is a semi-transparent, high-strength polymer with excellent heat tolerance, maintaining its strength and rigidity in continuous operating temperatures up to 340° F.

Mar 26, 2025 · ULTEM® material is a high performance thermoplastic that belongs in every aerospace engineer’s toolkit. Known for being strong, stable, lightweight, heat-, flame- and chemical-resistant, this material is a versatile, high-performing option when compared to thermoplastics and metals alike.

May 30, 2024 · Introduction ULTEM is a high-performance engineering thermoplastic belonging to the polyetherimide (PEI) family. It exhibits exceptional mechanical properties, thermal stability, and chemical resistance, making it an ideal material for demanding applications in …