The medical device industry relies heavily on Polyethersulfone because this material provides excellent heat resistance together with superior mechanical properties. PES functions as a thermoplastic material for producing dialysis membranes and surgical instruments and sterilization trays. The materials natural heat tolerance and chemical resistance properties make it suitable for medical devices that need repeated sterilization. Solvay and BASF operate as leading companies which provide high quality PES products that fulfill the demanding standards of medical applications.

The production of water filtration systems heavily depends on PES as a fundamental material. The production of ultrafiltration membranes depends on PES because it provides excellent hydrolytic stability and superior mechanical strength. The membranes successfully eliminate bacteria and viruses and other contaminants from water to make it safe for drinking. SUEZ and Toray Industries maintain dominant market positions through their PES based filtration solutions which meet worldwide clean water requirements.

The aerospace industry uses polyethersulfone extensively because of its superior performance features. The material serves as the primary material for producing overhead storage bins and seat parts and wall panels. The materials high heat resistance, light weight, and durability make it suitable for these applications. Similar to polyethersulfone, polyaryletherketone is also widely adopted in aerospace because of its exceptional mechanical strength and high temperature resistance.