Prusament TPU 95A

High-performance flexible material engineered for consistency

Prusament TPU 95A is a premium, in-house manufactured thermoplastic polyurethane designed for printing durable and elastic functional parts with excellent dimensional repeatability. Each spool is produced under strict quality control with a guaranteed diameter tolerance of ±0.06 mm, ensuring smooth extrusion, stable layer deposition and predictable performance across long prints and complex geometries.

Advanced mechanical properties for demanding applications

This ether-based TPU formulation combines flexibility with mechanical strength. The material maintains high impact resistance and wear resistance even under repeated cyclic stress, making it suitable for dynamic components and moving assemblies. TPU 95A retains its elasticity at low temperatures and shows strong resistance to oils, greases and many industrial chemicals. The low moisture uptake and high hydrolysis resistance help preserve mechanical integrity over time, even in humid environments or applications involving periodic exposure to fluids.

Optimized printability with stable flow and reduced deformation

Despite its flexibility, Prusament TPU 95A is engineered for improved bridging and overhang performance compared to standard TPU materials. It extrudes smoothly at moderate speeds and forms consistent strands that minimize print artifacts such as gaps, under-extrusion or collapse in unsupported areas. The material’s balanced viscosity helps maintain part geometry and limits deformation, making it easier to print large, flexible surfaces and thin-wall features without excessive tuning.

Recommended print settings and surface selection

For best results, print with a nozzle temperature around 230 ± 10 °C and a bed temperature around 65 ± 10 °C. A Satin or PA/Nylon build sheet provides the most reliable adhesion during printing while still allowing easy part removal. Printing on a Smooth PEI sheet is possible but requires a separation layer to prevent the part from bonding too strongly to the surface.

Direct drive extruders are recommended for maximum control over filament movement, but well-calibrated Bowden systems can also print TPU 95A with slower speeds and reduced retraction. Lower retraction values help avoid clogging and filament compression inside the extruder path.

Handling, storage and preparation for perfect prints

Although this TPU has low moisture absorption, drying the filament is still advised if it has been exposed to humidity. Moist filament may produce stringing or surface blisters. Keep the spool in a sealed container or drybox when not in use. For soft and flexible parts, use low infill patterns such as gyroid or adaptive cubic to preserve elasticity. For structural components, increasing wall count and infill density provides improved stiffness while maintaining TPU’s intrinsic damping characteristics.

If printing large parts, consider brims or a draft-shield to reduce warping and maintain adhesion during long builds. Cooling should be moderate—too much airflow can cause uneven layer bonding, while too little airflow may increase sagging on overhangs.

Design guidelines for flexible and durable parts

TPU 95A is ideal for components requiring controlled deformation, elastic return or vibration damping. Thin-wall sections can be used to tune flexibility, while thicker regions improve strength and compression resistance. The material allows for living hinges, compressible zones, snap-fit features and integrated seals. For parts combining rigid and soft regions, TPU can be printed alongside PLA, PETG or other materials using multi-material workflows.

Wide range of applications across industries

Common use cases include shock absorbers, vibration-damping mounts, seals, gaskets, custom protective covers, flexible connectors, cable strain-reliefs, wearable components, grips, and robotics elements that benefit from controlled elasticity. In prototyping environments, TPU 95A is often used for functional test parts that must withstand bending, repeated impact, or abrasive contact without cracking.