With the family's highest glass transition (Tg 225°C) (HDT 205°C), PESU suits hot electrical and industrial parts, aircraft interiors, and haemodialysis and water-treatment hollow-fibre membranes (E 6020 P).
Polyethersulfone (PESU)
PESU Supply in Korea | BASF Ultrason® E (Polyethersulfone)
Polyethersulfone (PESU) is the transparent sulfone with the highest heat resistance and stiffness, suited to high-temperature filtration membranes, aircraft interiors and hot electrical components. Octud supplies the full BASF Ultrason® E range from Korean stock.
PRODUCT FAMILIES
PESU
Polyethersulfone
225°C
Tg (glass transition)
The highest heat resistance and stiffness in the sulfone family — high-temperature filtration membranes, aircraft interiors and hot electrical components.
Ultrason® grade line-up
Grade selection support →PESU
Ultrason® E 1010
저점도·고유동 그레이드. 박육 부품과 복잡 형상을 낮은 사출압으로 충전합니다.
MVR 150
PESUUltrason® E 2010
Standard PESU with the highest heat resistance in the sulfone family.
HDT/A 205°C
PESUUltrason® E 2010 UN Q26
E 2010의 물성을 유지하며 이형성을 최적화한 버전. UL94 V-0 등급 유지.
이형성 · V-0
PESU · GF30Ultrason® E 2010 G6
30% glass-fibre PESU for high-temperature structural and metal-replacement parts.
인장강도 155 MPa
PESUUltrason® E 3010
고점도 사출·압출·블로우 그레이드. 개선된 인성과 내화학성을 갖춘 PESU 상위 그레이드.
HDT/A 208°C
PESU · 멤브레인Ultrason® E 6020 P
High-molecular-weight PESU powder for haemodialysis and water-treatment membranes.
용액 캐스팅용
Ultrason® grade comparison
Four selection properties across every grade we supply, from the manufacturer's TDS (typical values, 23°C, dry). Open a grade for the full data set.
| Grade | Type | Densityg/cm³ · ISO 1183 | Tensile modulusMPa · ISO 527 | Charpy notched (23°C)kJ/m² · ISO 179/1eA | HDT/A (1.8 MPa)°C · ISO 75 |
|---|---|---|---|---|---|
| Ultrason® E 2010 | PESU · Polyethersulfone | 1.37 | 2,640 | 7.5 | 205 |
| Ultrason® E 2010 G6 | PESU · GF30 | 1.59 | 9,800 | 10 | 222 |
| Ultrason® E 6020 P | PESU · 멤브레인 그레이드 | — | 2,650 | 7.5 | 207 |
| Ultrason® E 1010 | PESU · Polyethersulfone | 1.37 | 2,650 | 6.5 | 203 |
| Ultrason® E 2010 UN Q26 | PESU · Polyethersulfone | 1.37 | 2,650 | 6.5 | 205 |
| Ultrason® E 3010 | PESU · Polyethersulfone | 1.37 | 2,630 | 8 | 208 |
Typical values, not specifications. Verify against the current TDS before design release.
Key advantages
- Highest heat resistance in the sulfone family (HDT 205°C)
- Outstanding hydrolysis resistance in hot water and steam
- High stiffness retained at temperature
- Membrane-grade options for haemodialysis and water treatment
- Inherently flame retardant — UL94 V-0 (E 2010)
Industries & applications
Water Treatment
Ultrafiltration (UF) and haemodialysis membranes (E 6020 P)
Aerospace
Aircraft interior and high-heat components
Electrical & Electronics
High-temperature connectors and structural parts
Industrial
Metal-replacement structural parts (E 2010 G6)
RELATED READING
All news & insights →Related reading
New products23 October 2026
BASF extends Ultrason® into AI data-centre and e-mobility electrical & electronic parts
BASF is extending its polyarylethersulfone family Ultrason® (PSU, PESU, PPSU) into electrical and electronic parts for AI data centres, high-speed connectivity and e-mobility — fibre-optic connectors, cable jacketing, magnet-wire insulation and thermal-management parts. What was announced, and what connector and electrical-component makers in Korea should check.
Technical notes23 September 2026
PPSU vs PA baby bottles: heat, impact, sterilisation and safety margin on the datasheets
PPSU is the super-engineering plastic used in hospital instruments steam-sterilised thousands of times at 134°C and in aircraft cabin interiors. We set its datasheet against the transparent PA also used in baby bottles, on identical test methods, and explain in plain terms what the 'margin' left above boiling water is and why it matters.
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.
Frequently asked questions
Not sure which grade is right?
Tell us your application and required properties and our engineering team will come back within 24 hours with TDS, pricing and evaluation samples.