BASF Ultrason® S 2010 is the equivalent standard-viscosity transparent PSU injection molding grade, matching on tensile strength, HDT and other key properties. Octud supplies it from Korean stock and provides evaluation samples.
PSU · PESU · PPSU
High-Performance Sulfone Polymers (PSU, PESU, PPSU)
Polysulfone (PSU), polyethersulfone (PESU) and polyphenylsulfone (PPSU) are amorphous super engineering plastics combining transparency with exceptional heat and hydrolysis resistance — the standard materials for medical devices, membranes and food-contact parts. Octud is an official distributor of BASF Ultrason® and supplies the full grade range from Korean stock, with cross-reference data against Syensqo Udel®, Veradel® and Radel®.
PRODUCT FAMILIES
PSU
Polysulfone
187°C
Tg (glass transition)
The best cost-to-performance balance in the sulfone family. Transparent, and widely used for water filtration housings, food-contact parts and electrical insulation components.
PESU
Polyethersulfone
225°C
Tg (glass transition)
The highest heat resistance and stiffness in the sulfone family. Suited to high-temperature filtration membranes, aircraft interiors and hot electrical components.
PPSU
Polyphenylsulfone
220°C
Tg (glass transition)
Notched impact 70 kJ/m² (ISO 179, no break) — no break under notched impact — and resistance to more than 1,000 repeated steam sterilization cycles, making it the standard for reusable medical devices.
Browse by family
PSU, PESU and PPSU differ in properties and applications. Choose a family for its grades, property data and equivalency.
PSU187°CTg (glass transition)
PSU Polysulfone
The best cost-to-performance balance in the sulfone family — transparent, and widely used for water-filtration housings, food-contact parts and electrical insulation.
4 grades
PESU225°CTg (glass transition)
PESU Polyethersulfone
The highest heat resistance and stiffness in the sulfone family — high-temperature filtration membranes, aircraft interiors and hot electrical components.
6 grades
PPSU220°CTg (glass transition)
PPSU Polyphenylsulfone
Notched impact 70 kJ/m² (ISO 179, no break) — no break under notched impact — with resistance to 1,000+ repeated steam sterilization cycles. Made without BPA or BPS.
1 grades
Key advantages
- Withstands repeated steam and autoclave sterilization
- Outstanding hydrolysis resistance in hot water and steam
- Dimensional stability maintained up to 180°C
- Honey-toned optical transparency
- Broad chemical resistance to detergents, oils and solvents
- Excellent electrical insulation and dielectric behaviour
- Inherently flame retardant — self-extinguishing
Industries & applications
Medical & Healthcare
Repeatedly sterilized surgical trays and instrument handles
Food & Kitchenware
Reusable tableware and hot-cooking components
Water Treatment
Ultrafiltration (UF) and reverse-osmosis (RO) membranes
Electrical & Electronics
Connectors, sockets and circuit breakers
Automotive
Water-pump impellers, oil components, headlamp bezels
Plumbing & Sanitary
Fittings, valves and flow meters in potable water contact
RELATED READING
All news & insights →Related reading
New products4 September 2026
Avient launches metallic-effect pre-colored sulfone formulations for Ultrason®
Pre-colored sulfone compounds that produce gold, silver and bronze metallic finishes straight out of the mould, removing the painting step along with its weight and VOC. Developed with BASF, they bring metallic-coloured Ultrason® grades to the market.
Case study3 September 2026
BASF Ultrason® goes into Kyoraku's reusable Amberware design tableware
BASF supplied the polyethersulfone grade Ultrason® E 3010 nat to Kyoraku of Japan, which used it for a reusable design tableware line called Amberware. What was announced, and what to check if you are looking at the same material here.
Regulatory1 September 2026
EU bisphenol restriction (2024/3190) and recertifying high-temperature food-contact materials
It is easy to assume only PC has to change, but BPA-based PSU and BPS-based PESU also require recertification for food contact. Here is the scope, the exemptions and the route to PPSU.
Frequently asked questions
Not sure which grade is right?
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