What is PESU Material- BASF 1010

In the field of high-performance engineering plastics, PESU material (polyethersulfone) has long been used in aerospace, medical equipment and electronic connection systems for its excellent thermal stability and electrical properties. However, not all applications require enhanced high-modulus products. For precision parts that need to focus on lightweight, complex structural molding and electrical safety, the emergence of PESU 1010 just fills this gap.

01｜What is PESU 1010 material?

PESU 1010 is a non-reinforced, flame-retardant, high-flow polyethersulfone material launched by BASF. The original intention of the design is not to pursue extreme strength, but to provide a better solution for engineering applications that have multiple requirements for molding accuracy, electrical insulation and thermal stability. Without adding glass fiber, it achieves:

Excellent dimensional stability: low thermal expansion coefficient, dimensional change rate close to zero;

Good heat resistance: heat deformation temperature up to 203°C;

Excellent electrical safety: UL94 V-0 (3.0mm), CTI 125V, RTI up to 190°C;

High processing efficiency: melt index up to 150 cm³/10min, especially suitable for thin-wall precision injection molding.

02｜Which engineering problems are suitable for this type of PESU material?

Different from GF reinforced materials that tend to support structures, PESU 1010 is more like a "systematic functional material", and its value lies in improving the precision, safety and production efficiency of equipment.

✅ Injection molding problems of micro electronic housings

Complex structure, thin wall, precise positioning, and extremely high requirements for fluidity, PESU 1010 can significantly reduce the risk of filling dead corners and deformation with its low viscosity and high dimensional stability.

✅ Flame retardant and heat resistant challenges for vehicle connectors

The connector housing must simultaneously meet V-0 flame retardancy, long-term high temperature resistance, and stable electrical insulation. PESU 1010 meets the standards in the 180°C electrical/impact/structural multi-dimensional RTI test and has long-term load capacity.

✅ Insulation protection requirements for electrical control modules

The module housing that works in high voltage and small space requires materials with high resistivity and dielectric strength. The volume resistivity of PESU 1010 is >10¹⁵ Ω·cm, and the insulation strength is as high as 37 kV/mm.

03 | Why choose PESU 1010?

  ・It does not contain glass fiber and is more suitable for appearance parts and small precision parts;

  ・It has fast injection molding speed, small warping, and stable processing;

  ・It can meet the certification requirements of high-demand scenarios such as electrical, electronic, and new energy;

  ・As a pure PESU material, it can provide more consistent formula customization in the future.

04｜How is it different from common reinforced PESU materials?

Summary: When structural parts no longer pursue "harder" but care more about "thinner, more accurate, faster, and safer", the design advantages of PESU 1010 are revealed.

05｜What can we provide for you?

As a supplier of engineering plastic materials, we not only provide PESU 1010 spot resources, but also help customers recommend the most suitable models according to different application environments, such as:

📩 Welcome to contact us for samples, processing suggestions and data packages to help you complete material selection and product iteration more efficiently.

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