Fiberlogy FiberFlex 40D Filament Black 1,75 mm 500 g

Fiberlogy FiberFlex 40D Filament Black 1.75 mm – 500 g

Overview

Fiberlogy FiberFlex 40D Black is a flexible 3D printing filament designed for applications that require high elasticity, durability, and impact resistance. With a hardness rating of 40D on the Shore scale, it offers a balance between flexibility and structural integrity, making it easier to print than softer TPU filaments while still delivering excellent flexibility. The filament comes in a 1.75 mm diameter and a 500 g spool, compatible with most FDM 3D printers equipped for flexible materials.

Material Properties

FiberFlex 40D is a thermoplastic polyurethane (TPU) filament known for its rubber-like behavior. It is highly resistant to abrasion, oils, and many common chemicals, while maintaining excellent elasticity. The black color provides a professional, matte finish suitable for both functional and aesthetic prints.

Key Features

• Flexible Shore hardness of 40D for easier printing and handling
• High elasticity and excellent elongation before break
• Strong resistance to abrasion and mechanical wear
• Good chemical resistance to oils and greases
• Reliable layer adhesion for flexible structures
• Stable extrusion with reduced clogging risk

Printing Recommendations

For optimal results, print temperatures typically range between 220°C and 250°C, depending on printer setup. A heated bed set to around 40°C to 60°C is recommended to improve adhesion. Direct drive extruders are preferred for flexible filaments to ensure better control and reduce feeding issues. Print speed should be reduced to allow smooth filament flow and accurate layer placement.

Applications

Fiberlogy FiberFlex 40D Black is ideal for producing flexible parts such as protective cases, seals, gaskets, vibration dampers, phone covers, wearable components, and shock-absorbing elements. It is also suitable for robotics, automotive prototypes, and functional components that require repeated bending or compression.

Advantages of 40D Flexibility

Compared to harder flexible filaments, the 40D formulation provides a more user-friendly printing experience while still maintaining strong elastic performance. It reduces common issues like excessive stringing and feeding difficulties often associated with softer TPU materials.

Conclusion

Fiberlogy FiberFlex 40D Black 1.75 mm 500 g is a versatile flexible filament designed for users who need durable yet elastic prints. Its combination of ease of printing and strong mechanical flexibility makes it an excellent choice for both functional and creative 3D printing projects.