ULTEM vs Vega

November 20, 2023

Engineering thermoplastics play a pivotal role in modern industries, providing solutions for applications that demand high thermal stability, mechanical strength, and resistance to harsh environments. Here we look at ULTEMTM 9085 and VegaTM, two of the engineering plastics options from Markforged.

Chemical Structure

ULTEMTM 9085, classified as a high-temperature amorphous thermoplastic, boasts a chemical structure characterized by the presence of ether and imide groups in its polymer chain. This configuration imparts exceptional thermal stability and mechanical strength to ULTEMTM 9085. On the other hand, VegaTM, belonging to the polyaryletherketone family, exhibits a more intricate structure with two ketone groups and two ether groups in each repeating unit.

Properties

ULTEMTM 9085 is renowned for its high glass transition temperature (Tg), outstanding mechanical properties, and dimensional stability. Its resistance to high temperatures and excellent chemical resistance makes it a preferred choice for applications requiring strength and rigidity, such as in the aerospace and automotive industries. Conversely, VegaTM shares similarities with ULTEMTM 9085 in terms of high-temperature resistance and mechanical strength. However, VegaTM may offer additional advantages, including improved chemical resistance and a higher Tg, making it suitable for more demanding applications.

Applications

ULTEMTM 9085 finds widespread use in the manufacturing of components for electrical and electronic applications. Additionally, it is a material of choice in aerospace and automotive industries for structural components due to its high strength and flame resistance. VegaTM, on the other hand, is often selected for applications demanding extreme mechanical performance, high-temperature resistance, and chemical resistance. This includes aerospace components, medical devices, and equipment for oil and gas exploration.

In conclusion, ULTEMTM 9085 and VegaTM represent cutting-edge engineering thermoplastics with unique properties and applications. The choice between these materials hinges on specific requirements such as temperature resistance, chemical resistance, and preferred processing methods. As industries continue to push the boundaries of performance, these advanced thermoplastics play a crucial role in meeting the evolving needs of diverse applications.

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