What is PSU

4TECH® 9W22110 is a 10% glass fibre reinforced flame-retardant PSU (polysulfone) material with excellent thermal stability, flame retardancy and electrical insulation properties. Its UL94 V-0 flame retardancy rating, combined with excellent mechanical strength and electrical properties, makes it widely used in electrical appliances, automobiles and medical equipment.

01 | Product Highlights

Reinforced Structure: 10% glass fibre reinforcement enhances strength and rigidity, making it suitable for long-term use in engineering components.

Flame Retardant Performance: UL94 V-0 rating meets electrical and safety requirements.

Mechanical Properties: Tensile strength of 80 MPa and tensile modulus of 4000 MPa balance rigidity and durability.

Electrical Insulation: Volume resistivity and surface resistivity both reach the 1E15 Ω level, ensuring electrical safety.

Moderate Flowability: Moderate flowability, suitable for injection moulding of complex structures.

02 | Типичные применения

Electrical components: insulating elements, switch housings, relay seats.

Автомобильная промышленность: Flame-retardant structural components, heat-resistant electrical modules.

Medical equipment: steam-resistant and flame-retardant enclosures and accessories.

Промышленные детали: Engineering components that can withstand long-term temperatures and stress cracking.

03 | Process adaptation

Метод обработки: Injection molding.

Recommended wall thickness: ≥1.6mm to fully leverage the flame retardant grade.

Suitable for modification: It can further increase the glass fiber content or be customized in color.

04 | 4TECH® 9W22110 Data Sheet

05 | Industry value and trends

With the development of the electrification and new energy vehicle industry, the demand for high-temperature resistant, flame-retardant and electrically insulating plastics continues to grow. PSU, as a transparent to semi-transparent engineering plastic, is becoming a popular alternative to metals and other engineering plastics due to its dimensional stability, flame retardancy and hydrolysis resistance.

06 | Similar recommendations

If you are examining PSU system materials, in addition to 4TECH® 9W22110, you may also pay attention to:

07 | FAQ

Q1: What are the differences between 4TECH® 9W22110 and a regular PSU?
A1: Compared with unreinforced PSU, 9W22110 is added with 10% glass fiber and features V-0 flame retardancy, offering higher mechanical strength and safety. It is suitable for the electrical and automotive industries.

Q2: Is this PSU suitable for medical devices?
A2: Yes, this material features high-temperature resistance, steam sterilization resistance and flame retardancy, making it suitable for medical equipment casings and long-term use components.

Q3: Can 4TECH® 9W22110 replace metal parts?
A3: In lightweight components with high requirements for electrical insulation and temperature resistance, this material can replace some metal parts, reducing weight and enhancing design flexibility.

Q5: How does Juyuan ensure the supply of materials?
A5: Juyuan ensures stable supply for bulk and long-term projects through multi-channel procurement and a stable international trade network, and can provide support for the selection of various engineering plastics such as PSU.

08 | Juyuan supply advantage

As a supplier specializing in international trade of plastic raw materials, Juyuan can provide customers with:

  ・Stable supply through multiple channels to ensure the demands of both bulk and long-term projects.

  ・Professional material selection support helps customers quickly match the most suitable PSU grade.

  ・Flexible logistics and export solutions enhance the cross-border purchasing experience.

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