PPSU – Polyphenylsulfone

PPSU is a high-performance amorphous thermoplastic with excellent thermal stability, superior impact strength and outstanding resistance to repeated steam sterilization. Available in a general industrial grade and a dedicated medical grade, it is used across plumbing, aerospace, food and beverage, water filtration and medical applications where toughness, hydrolysis resistance and sterilization compatibility are required.
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PPSU – Polyphenylsulfone

PPSU is an amorphous high-performance thermoplastic that occupies a distinct position in the high-performance plastics range. Where PEEK delivers the highest temperature resistance and chemical performance, and PEI excels in dielectric applications, PPSU is engineered for applications that demand repeated steam sterilization, superior toughness and biocompatibility.

As an amorphous thermoplastic, PPSU provides excellent hydrolysis resistance, stable dimensions and consistent performance in both wet and high-humidity environments. Its superior impact strength sets it apart from other high-performance plastics in the same temperature range, making it suitable for components subject to mechanical shock, drops or handling in clinical and industrial environments.

PPSU is available in two grades. The general grade covers industrial applications including plumbing components, aerospace parts, food and beverage processing equipment and membrane housings for water filtration.

Excellent Thermal Stability

Reliable performance at elevated temperatures with stable mechanical and dimensional properties

Resistance to Repeated Steam Sterilization

Withstands hundreds of autoclave cycles without loss of mechanical performance or dimensional change

Superior Impact Strength

Exceptional toughness and resistance to mechanical shock compared to other high-performance plastics in the same operating range

Excellent Hydrolysis Resistance

Stable properties in wet, humid and aqueous environments including repeated exposure to hot water and steam

Biocompatibility

PPSU MG is formulated for direct contact with human tissue and body fluids in medical and surgical applications

Dimensional Stability

Consistent dimensions maintained across repeated sterilization cycles and varying operating conditions

Available Product Forms

PPSU is available in sheets and round bars in both general grade and medical grade. Log in to check live stock availability, pricing and lead times for your specific dimensions and grade requirements.

Sheets

Both general grade and medical grade available in 1250x620 mm format. General grade in thicknesses 10 to 55 mm. Medical grade in thicknesses 3 to 55 mm, including thinner sheet formats for medical component production.

Round Bars

Solid bars from 15 to 90 mm diameter in 1000 mm lengths in both grades. Wide colour range available across both variants.

Cut-to-Size

Custom cut to your exact dimensions from standard sheet or bar stock in general or medical grade.

Finished Parts

CNC-machined parts to your technical drawings in general or medical grade PPSU. Suitable for instrument housings, sterilization trays, fluid handling components and structural insulating parts.

Typical Applications

PPSU is used wherever repeated sterilization, toughness under mechanical shock and stable performance in wet or high-temperature environments are required across medical, industrial and fluid handling applications.

Surgical and Dental Instruments

PPSU MG is used for handles, housings and structural components of surgical and dental instruments that undergo repeated autoclave sterilization. Its biocompatibility and sterilization resistance make it a direct material specification in medical device manufacturing.

Sterilization Trays and Containers

Used for reusable sterilization trays, instrument containers and cassettes in operating theatre and central sterilization unit environments where hundreds of sterilization cycles are required without material degradation.

Endoscopic Components

PPSU MG is applied in endoscopic instrument components and housings where biocompatibility, chemical resistance to cleaning agents and sterilization resistance are simultaneously required.

Plumbing and Fluid Handling

General grade PPSU is used for plumbing fittings, valve components and fluid handling parts where hot water resistance, hydrolysis resistance and dimensional stability over long service life are required.

Aerospace Components

Applied in aerospace interior and structural components where high thermal stability, low flammability and toughness under mechanical stress are required within weight constraints.

Membrane Housing and Water Filtration

Used for membrane housings, filter housings and water treatment components where resistance to aggressive cleaning chemicals, hot water and steam is required for long service intervals.

Available in 2 Variants

Select the correct grade based on whether biocompatibility and medical certification are required alongside sterilization resistance.

PPSU General Grade

Tough amorphous thermoplastic with excellent heat and hydrolysis resistance.

PPSU Medical Grade

Specifically formulated for demanding medical and healthcare applications.

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Log in to Plastix Factory to check availability, calculate prices and order PPSU sheets or round bars online in general grade or medical grade.

Frequently Asked Questions

Everything you need to know about accessing Plastix Factory, placing orders, checking live pricing and downloading technical material documentation online.

Customers can log in or request access to the Plastix Factory platform. Once access is available, they can browse materials, check availability, calculate prices and place orders online.

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The platform offers engineering plastics in sheets, rods, tubes and cut-to-size formats, depending on material availability.

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Technical data and relevant material documentation are accessible through the platform.

The platform supports a digital workflow from material selection and order placement to order status and shipment tracking.

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