Hard TPU Filament

About

Hard TPU filament from Siraya Tech gives you the flexibility of thermoplastic polyurethane with the rigidity your functional parts need. This collection covers high-durometer TPU options at Shore 64D and above, built for snap-fit assemblies, protective housings, and mechanical components. If your parts need to absorb impact without bending out of shape, hard TPU is the right material. These 1.75mm filaments work with FDM printers from Bambu Lab, Creality, Prusa, Elegoo, and more. Rigid Flexibility for Parts That Take a Beating Hard TPU holds its shape under load while absorbing impact better than stiff plastics. Printed parts resist abrasion and surface wear even in moving assemblies. Higher Shore hardness means tighter tolerances and less deformation during use. Works well for brackets, housings, jigs, and industrial fixtures that need some give without folding. Prints Reliably on Most FDM Printers 1.75mm diameter fits all standard FDM setups, including Bambu Lab, Creality, and Prusa. Higher-hardness TPU feeds more smoothly than softer variants, reducing jams and stringing. Direct-drive extruders give the best results, but many Bowden setups handle hard TPU well too. Drying the filament before use improves surface quality and layer adhesion. Built for Functional Use, Not Just Prototyping Chemical and oil resistance make hard TPU suitable for automotive and mechanical applications. Parts flex thousands of cycles without cracking or delaminating. Excellent layer bonding creates strong, reliable parts right off the build plate. ISO 10993 biocompatibility testing data available for skin-contact evaluation. Explore Related Collections Flex TPU Filament for 3D Printing — Browse TPU options from soft to rigid for any project. Filament for Gears — Wear-resistant filaments designed for mechanical assemblies and moving parts. Filament for Snap Fit — Flexible yet precise filaments that hold snap connections without cracking. Impact Resistant Filament — Filaments rated for hig