PES (polyethersulfones)
Highest heat resistance among amorphous polymers

Dimensionally stable. Chemical resistant. Durable.
SUMIKAEXCEL PES (Sumitomo) is a polyethersulfone with the highest glass transition temperature among amorphous materials. Transparent to slightly amber-colored granules combine heat resistance, creep resistance and high dimensional stability. Powder qualities complete the portfolio for coatings, adhesives and membrane solutions.
Key features at a glance:
- Highest glass transition temperature among amorphous polymers
- Excellent creep resistance and permanent dimensional stability
- High chemical and hot water resistance for demanding applications
- Available as granules for injection molding and powder for applications
Applications
Our product range covers the entire spectrum from standard grades to specialized high-performance compounds that are precisely tailored to your requirements in the automotive, electronics and sanitary sectors. Find your product portfolio in the industry-relevant application segment.



A diverse raw material base
Our versatile product portfolio of PES grades covers a wide range of applications in the E&E, sanitary and automotive sectors.
Primary raw materials
PES
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Our vision: Closed material cycles as the industry standard.
Our mission: Maximum sustainability with maximum performance.
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