TPU filament for flexible, durable functional prints

Unveil Form ShoeFlex 9075A is a 1.75 mm TPU filament for FDM 3D printing of elastic, durable parts that need to bend, recover, and hold up to repeated use. The Lake Blue 0.75 kg spool is suited to shoe printing, grips, guards, wearables, and other applications where rigid PLA-style behaviour is not the goal.

ShoeFlex 9075A combines a 90A filament hardness with a stated 75A printed model hardness, giving printed parts a soft finished feel with controlled support. TPU is a practical material when comfort, resilience, repeated movement, and surface contact matter.

Key features of ShoeFlex 9075A TPU

• Flexible TPU material: Produces parts that bend and recover, making it useful for soft-touch components, shock-absorbing designs, and contact surfaces that need more grip.
• 1.75 mm filament format: Fits a wide range of desktop FDM and FFF 3D printers that use standard 1.75 mm material.
• 90A filament hardness and 75A printed hardness: Balances flexibility with structural support for functional parts that must flex under load without becoming overly soft.
• Controlled filament diameter: Filament diameter is controlled within ±0.03 mm for more consistent feeding and extrusion.
• Lake Blue colour: Delivers a clean, consistent coloured finish that can reduce the need for painting in many applications.
• Durable printed output: TPU is well suited to parts exposed to repeated handling, compression, surface contact, abrasion, and impact.
• Beginner-friendly TPU behaviour: The product information identifies ShoeFlex 9075A as easy to print for beginners, while still supporting practical functional printing.

Benefits for functional flexible 3D printing

Flexible TPU helps reduce cracking and brittle failure in parts that need to deform during use. Compared with rigid materials, ShoeFlex 9075A is better suited to vibration damping, edge protection, wearable components, and surfaces that need a softer, grippier feel.

The material also supports prototyping for products that will be handled, bent, or compressed in service. That makes ShoeFlex 9075A useful for both iterative design work and end-use components in low-volume production.

During printing, the material softens as it prints, which supports the soft printed result expected from a flexible TPU. For TPU users, careful setup remains important for the best finish and dimensional consistency.

Common use cases for 90A TPU filament

• Footwear and insoles: Suitable for shoe-related prototypes, shoe models, pads, insoles, and flexible fit components.
• Grips and sleeves: Useful for handles, covers, sleeves, and tool contact points that benefit from a softer feel and added grip.
• Seals and guards: Works for gaskets, bumpers, corner protectors, protective edges, and similar cushioning features.
• Wearable and ergonomic parts: Good for straps, comfort interfaces, body-contact accessories, and ergonomic parts that must flex in use.
• Impact-resistant functional parts: Fits projects that need flex and abrasion resistance rather than stiffness alone.

Practical value for shoe printing and soft functional parts

ShoeFlex 9075A is a strong fit for users comparing materials for flexible 3D printing when the goal is durable TPU parts with controlled flexibility. The combination of flexible behaviour, wear resistance, and soft finished hardness makes the filament useful for shoe printing and other applications that need a softer printed result.

The material is also practical for users who need parts that can be handled repeatedly, compressed in service, or exposed to surface contact without the brittleness associated with rigid filaments.

TPU printing guidance for cleaner results

TPU generally prints best at moderate temperatures, slower speeds, and with carefully tuned retraction. A clean build surface, controlled cooling, and dry filament storage help improve surface quality and reduce stringing.

For nozzle-based flow guidance, the listed M.V.S. values are 2.8-3.6 mm³/s with a 0.4 mm nozzle and 3.0-5 mm³/s with a 0.6 mm nozzle. These values are useful when tuning ShoeFlex 9075A for steady extrusion and consistent flexible print output.

Technical specifications

Frequently asked