PESU+CF (Polyethersulfone + Carbon Fiber) is an ultra-high-performance engineering composite developed for both FFF (Fused Filament Fabrication) and FGF (Fused Granulate Fabrication) 3D printing. By combining the exceptional thermal stability of Polyethersulfone (PESU) with the strength and stiffness of carbon fibre reinforcement, PESU+CF delivers outstanding mechanical performance, chemical resistance, dimensional stability, and lightweight durability. It is widely used in aerospace, automotive, medical, electronics, and advanced industrial manufacturing.

PESU+CF is one of the most advanced 3D printing materials available for industrial additive manufacturing, offering superior performance in environments exposed to high temperatures, mechanical stress, and aggressive chemicals. Carbon fibre reinforcement significantly improves the stiffness and structural integrity of PESU while maintaining its inherent flame resistance and long-term dimensional stability. Available as both filament for FFF printers and pellets for FGF systems, PESU+CF enables manufacturers to produce precision engineering parts as well as large-format industrial components with exceptional reliability.

Why Choose PESU+CF for 3D Printing?

PESU+CF is engineered for mission-critical applications where high mechanical strength, thermal resistance, and chemical stability are essential. Compared with conventional engineering plastics, this advanced composite maintains its mechanical properties at elevated temperatures while providing excellent resistance to creep, fatigue, and harsh industrial environments. It is an ideal material for producing lightweight structural components that require long service life and consistent performance.

Key Benefits

• Exceptional strength-to-weight ratio
• Excellent heat and thermal resistance
• Outstanding dimensional stability
• High stiffness and rigidity
• Superior chemical resistance
• Excellent flame resistance
• Long-term mechanical durability
• Ideal for demanding industrial and engineering applications

Compatible Printing Technologies

PESU+CF is compatible with advanced industrial additive manufacturing systems.

FFF (Fused Filament Fabrication)

FFF technology uses PESU+CF filament to manufacture high-precision engineering components with excellent dimensional accuracy and superior surface quality. It is ideal for aerospace parts, electrical insulation components, medical equipment, industrial fixtures, and functional prototypes requiring high thermal and mechanical performance.

FGF (Fused Granulate Fabrication)

FGF technology processes PESU+CF pellets, enabling manufacturers to produce large-format engineering components with faster production speeds and improved material efficiency. It is particularly suitable for aerospace tooling, automotive moulds, industrial machinery, marine applications, energy equipment, and large structural components where strength, heat resistance, and productivity are critical.

Both technologies provide exceptional mechanical performance, allowing manufacturers to choose the most appropriate process based on component size, production requirements, and application demands.

Common Applications

PESU+CF is widely used across industries requiring lightweight, heat-resistant, and structurally strong components.

Typical applications include:

• Aerospace structural components
• Automotive engineering parts
• Industrial tooling and fixtures
• Electrical insulation components
• Medical equipment housings
• Robotics and automation systems
• Energy and power generation equipment
• Chemical processing components
• Functional engineering prototypes
• Large-format industrial manufacturing

PESU+CF Material Properties

*Printing parameters may vary depending on the printer model, material grade, and build chamber temperature.

FFF vs FGF Printing

Storage and Best Practices

PESU+CF should be stored in a sealed, moisture-proof container with desiccant to prevent moisture absorption before printing. Drying the material before use helps maintain excellent surface quality and mechanical performance. Due to its high processing temperature, an industrial 3D printer with a high-temperature nozzle, heated build chamber, and heated build plate is recommended. Because carbon fibre is abrasive, a hardened steel, tungsten carbide, or ruby nozzle should be used to minimise nozzle wear and ensure consistent extrusion during long production runs.