Fiberlogy FiberFlex 40D Filament Black 1.75 mm 0.85 kg

Fiberlogy FiberFlex 40D Black Filament – 1.75 mm, 0.85 kg

Overview

Fiberlogy FiberFlex 40D Black is a TPU (thermoplastic polyurethane) flexible filament designed for producing highly durable, elastic, and impact-resistant parts. It is engineered for users who need rubber-like performance but still want relatively stable and manageable printing behavior.

Material Characteristics

TPU 40D combines high elasticity with good structural stability. It resists tearing, repeated bending, and mechanical fatigue. The black version provides a neutral, technical appearance suitable for both prototypes and final functional parts.

Mechanical Properties

• High elasticity and elongation
• Excellent abrasion resistance
• Strong resistance to impact and vibration
• Good resistance to oils and greases
• Stable performance under cyclic stress

Printing Behavior

TPU requires controlled extrusion. FiberFlex 40D is easier than softer TPU grades but still demands slow printing and careful feeding. Direct drive extruders are strongly recommended.

• Nozzle temperature: 220–250°C
• Bed temperature: 40–60°C
• Speed: 20–40 mm/s
• Retraction: minimal or off

Applications

• Protective cases
• Industrial seals and gaskets
• Vibration dampers
• Flexible joints and hinges
• Wearable components

Summary

A balanced TPU filament combining durability and usability, ideal for engineering and everyday flexible applications.