PES (Polyethersulfone)

What is PES (Polyethersulfone)?

PES is often used in applications where conventional plastics cannot withstand extreme temperatures or aggressive chemicals. It is one of the most reliable engineering plastics for demanding environments in medical, electronics and industry.

Important properties of PES (Polyethersulfone)

• Extreme heat resistance – Withstands continuous temperatures up to 180–220°C without deforming.
• Exceptional chemical resistance – Resists strong acids, bases and solvents.
• High mechanical strength – Retains its stiffness and strength even at high temperatures.
• Good dimensional stability – Shrinks minimally during temperature changes and keeps its shape.
• High hydrolysis resistance – Perfect for use in humid environments and steam sterilization.
• Flame retardant – Naturally flame retardant and self-extinguishing.
• Electrically insulating – Has excellent dielectric properties and is used in electronics.
• Transparent or tinted – Available both as transparent and in colored variants depending on the application.

Different types of PES (Polyethersulfone) and their uses

• Pure PES – Used in medical and laboratory applications where sterility is crucial.
• Glass fiber reinforced PES – Increased stiffness and strength, used in technical and industrial components.
• Flame retardant PES – Meets fire protection requirements and is used in the aerospace and automotive industries.
• Transparent PES – Used in optical and medical products where transparency is required.

How do we use PES in our production?

We use PES in high-performance applications where extreme temperature resistance and chemical resistance are required.

Some of the most common uses are:

• Medical devices – PES is used in surgical instruments, dialysis filters and sterile components.
• Electronics and electrical components – Thanks to its electrical insulation, PES is used in terminal blocks and electrical enclosures.
• Industrial filters and membranes – Used in filtration systems for chemicals and water purification.
• Aerospace and automotive industry – PES is used in components exposed to high temperatures and harsh environments.
• Laboratory equipment – PES is used in test tubes, pipettes and chemical-resistant containers.

Why do we choose PES (Polyethersulfone)?

PES is one of the highest performing engineering plastics and is used where conventional plastics are not sufficient. Its combination of heat resistance, chemical resistance and mechanical strength makes it an important solution for advanced industrial and medical applications.

To optimize PES for specific needs, it can be modified with:

• Fiberglass or carbon fiber reinforcement – For increased rigidity and strength.
• UV stabilizers – For longer life when used outdoors.
• Antistatic treatment – For the electronics and semiconductor industry.

In summary, PES is a high-performance material used in advanced industrial, medical and technical solutions where extreme durability and chemical resistance are required.