PEI (Ultem®)

PEI (Ultem®) is a semi-transparent high temperature plastic material with extremely high strength and stiffness.  PEI is resistant to hot water and steam and can withstand repeated cycles in a steam autoclave.  PEI has outstanding electrical properties and one of the highest dielectric strengths of any commercially available thermoplastic material. It is often used instead of polysulfone when superior strength, stiffness, or temperature resistance is required.  PEI is available in glass-filled grades with enhanced strength and stiffness.  It is another plastic which finds many uses under the hood in trucks and autos.  Ultem 1000® has no glass in it while  Ultem 2300® is filled with 30% short glass fiber.

Grades: Ultem 2300 and 1000 in black and natural