PEI (Polyetherimide), commonly known as Ultem, is a high-performance 3D printing filament renowned for its exceptional heat resistance, strength, and chemical stability. Our industrial PEI/Ultem filaments are available in advanced formulations, including carbon fiber and glass-filled Ultem for added stiffness and strength, as well as ESD-Safe Ultem for electronics applications. Ideal for aerospace, automotive, and high-temperature engineering parts, PEI/Ultem delivers unmatched reliability in the most demanding environments.
