Filament Fiberlogy FiberFlex 30D flexible TPU 1.75 mm 85 g black

Fiberlogy FiberFlex 30D flexible TPU in black is a 1.75 mm filament supplied on a compact 85 g spool, formulated for FDM/FFF 3D printers that accept flexible thermoplastic elastomers. With a Shore softness rating around 30D, this TPU balances elasticity and dimensional stability to produce bendable, resilient parts such as gaskets, wearable components, grips and functional prototypes that need durable flex.

Advantages

This flexible TPU offers good layer adhesion and consistent extrusion for reliable printing of elastic geometries. Its Shore softness provides noticeable flexibility while retaining sufficient strength for repeated bending and compression. The filament’s 1.75 mm diameter ensures compatibility with most hobby and prosumer printers designed for flexible materials, and the black color gives a neutral, professional finish for functional parts.

Suitable for

• Elastic prototypes and functional parts that require bendability
• Wearable accessories and soft grips
• Gaskets, seals and vibration-damping components
• Low-volume production of durable flexible parts

Key specifications

• Material type: Thermoplastic polyurethane (TPU) with flexible properties
• Diameter: 1.75 mm nominal
• Spool weight: 85 g
• Color: Black
• Shore softness: approximately 30D (flexible elastomer)
• Intended printing technology: FDM/FFF

How to use

Load the 1.75 mm TPU filament into a printer compatible with flexible materials and ensure the filament path is constrained to minimise buckling between the feeder and the hotend. Use a direct-drive or appropriately configured Bowden setup with a short, guided filament path. Recommended printing parameters typically include a low to moderate print speed, reduced retraction settings or disabled retraction, and a heated bed where applicable to improve adhesion. Print temperature and bed temperature should be adjusted according to your printer and extrusion consistency; perform small calibration prints to set optimal values for layer adhesion and surface finish.

Usage recommendations

For best results, print at slower speeds (compared with rigid filaments), disable or lower retraction to avoid jams, and use a direct-drive extruder or a well-guided Bowden path. Ensure proper bed adhesion using a suitable surface or adhesive method and calibrate extrusion multiplier to avoid over- or under-extrusion when producing functional flexible parts.