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FiberFlex 40D Filament - 1.75 mm - 2.5 kg

FiberFlex 40D is a flexible TPU filament with a Shore hardness of 40D, enabling fast 3D printing (up to 45 mm/s) without compromising quality. It is easy to feed and provides excellent layer adhesion. The material is characterized by high resistance to impacts, low temperatures, abrasion, and chemicals.

Thanks to its balanced flexibility and durability, FiberFlex 40D is perfect for both hobby and professional applications, and it is available in a wide range of colors.

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Individual variants may differ in price

Kolor

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Black

The presented colors are for reference only and may differ from the actual filament color depending on screen settings.

€123.38

Regular price: €137.08

The lowest price during 30 days prior to the reduction: €137.08

The promotion runs until 30 November 2025

Shipping costs are not included in the price.

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Product description

FiberFlex 40D is a flexible TPU filament with a Shore hardness of 40D, designed for fast and precise 3D printing at speeds of up to 45 mm/s without compromising print quality. The material was developed to make printing flexible models simple and convenient – it feeds easily, while the layers bond perfectly, ensuring both durability and aesthetics of the prints.

FiberFlex 40D stands out with its high resistance to impacts, abrasion, low temperatures, and chemicals, making it suitable for a wide range of applications – from hobby projects to professional models requiring flexibility and strength.

The filament is available in a broad palette of colors, allowing it to be adapted to any project.

For users seeking other flexible filament options, Fiberlogy also offers FiberFlex 30D – a softer version of TPU, and Fiberlogy MattFlex 40D – a matte flexible filament with similar hardness, ideal for achieving non-glossy surfaces.

Print settings

Printing temperature 200-220°C
Bed temperature 70°C
Build surface Smooth PEI + masking tape or adhesive; Textured PEI + adhesive; Glass + masking tape or adhesive
Drying conditions 60°C / 4h
Enclosure not required
Cooling fan 50-75%
Maximum recommended print speed < 45 mm/s

Tips and recommendations

Easier print removal: To facilitate print removal, the bed can be heated up to 110 °C.

Color Palette

White yes
Black yes
Gray/Graphite yes
Red yes
Orange yes
Yellow yes
Green yes
Blue yes
Beige/Brown yes
Pink/Purple yes
Glitter yes
Skintones yes
Neon yes

To make it easier to choose the right color variant, we provide RAL and Pantone equivalents for filaments wherever possible. The given values are approximate and are intended to reflect the actual filament shade as closely as possible.

Why not HEX?

Providing the color of 3D printing filament in HEX format does not make sense because this notation was created to describe colors displayed on screens (RGB – monitors, TVs, mobile devices). HEX defines a mix of red, green and blue light, meaning a digital color. With filaments, however, we deal with a physical material. The same filament may look different in various photos and HEX cannot accurately represent the actual appearance of the material.

Much better references are color systems used in printing and industry, such as RAL or Pantone, which are based on real samples and allow for comparison of colors in physical reality.