Ultem

Ultem eyeglasses stands for eyewear frames made from Ultem, Ultem frames are typically manufactured using injection molding, a process where the resin pellets are heated until they melt and then injected into a mold under high pressure.

Compared with other eyeglasses materials, Ultem provides eyeglasses frame a lot of advantages, such as lightweight, durability, flexibility, hypoallergenic, heat resistance, variety of designs.

Ultem is a high-performance thermoplastic material known for its unique combination of strength, flexibility, and lightness. Ultem is a brand name for a family of polyetherimide (PEI) resins, which are known for their durability, chemical resistance, and heat resistance. 

This material is often used in applications requiring high performance and reliability, including medical devices and aerospace components.