TPU filament for flexible, durable functional prints

Unveil Form ShoeFlex 9075A is a Sakura pink 1.75mm TPU filament for FDM 3D printing that delivers flexible, resilient parts with a soft 90 Shore A feel. The material is made for applications where printed parts need bend, compression, grip, impact absorption, or repeated flex without the brittleness of rigid filaments.

The 0.75kg spool size gives makers, prototypers, and small-batch users a practical amount of material for functional flexible components, footwear-related prototypes, and colour-specific product development. ShoeFlex 9075A is made for printing shoe models, and the printed result is identified as 75A for a softer finished part.

Key features of ShoeFlex 9075A TPU

• Flexible and elastic material: TPU is designed for parts that need to bend, compress, or absorb shock in regular use.
• 90A filament hardness with 75A printed result: The filament prints into softer shoe models and other parts that need comfort, grip, and resilience.
• Controlled filament diameter: Material control keeps filament diameter within ±0.03mm for more consistent feeding and extrusion.
• 1.75mm format: The filament size suits a wide range of desktop FDM/FFF 3D printers built for standard 1.75mm material.
• Sakura pink colour: The pink finish supports visual prototyping, custom accessories, branded parts, and design-led functional prints.
• Good wear resistance: TPU is commonly chosen for parts exposed to friction, handling, or repeated movement.
• Softens as it prints: The product information notes that the material softens during printing and is easy to print for beginners.

Why 90A TPU is chosen for flexible functional parts

Flexible TPU filament fills the gap between rigid plastics and rubber-like parts. A material in the 90A range is useful when a printed component must stay tough while still flexing under load, making it suitable for protective parts and user-contact applications.

Compared with stiffer filaments, TPU can improve comfort, grip, vibration damping, and impact protection. That makes ShoeFlex 9075A a practical material when mechanical flexibility is part of the function rather than only a visual feature.

Use cases for shoe printing, grip parts, and protective components

• Footwear and fit testing: Useful for shoe-related prototypes, shoe models, cushioning concepts, flexible inserts, and wearable contact surfaces.
• Protective parts: Suitable for bumpers, corner guards, sleeves, and covers that benefit from shock absorption.
• Grip and handling components: Works well for handles, tool grips, controller sleeves, and anti-slip accessories.
• Wearables and soft-touch products: Appropriate for straps, bands, flexible mounts, and body-adjacent prototype parts.
• Seals and compliant features: Can be used for parts that need light compression or elastic movement in the design.

Practical TPU printing guidance

TPU generally prints best with moderate nozzle heat, reduced print speeds, and a clean, reliable filament path. Lower speeds help flexible material feed more smoothly and reduce the risk of buckling before the hotend.

Dry filament handling is important for print quality. Keeping TPU sealed when not in use helps maintain cleaner extrusion, better surface finish, and more consistent layer bonding.

For users tuning flow, the listed M.V.S. values are 2.8-3.6mm³/s with a 0.4mm nozzle and 3.0-5mm³/s with a 0.6mm nozzle. These values help position ShoeFlex 9075A for controlled, functional TPU printing rather than high-speed rigid material output.

Technical specifications

Frequently asked