Bambu Lab TPU 75A Purple (1.000 g)

Bambu Lab TPU 75A is an ultra-soft TPU filament with a naturally matt surface and a volumetric flow rate of up to 10 mm³/s. It is among the softest materials that can be processed on an FDM printer and is designed for parts that need to bend, compress and spring back into shape, such as cushioning, watch straps and footwear components.

With a Shore hardness of 75A, the material is significantly softer than common TPU grades with hardness ratings of 85A or 95A. Printed parts flex under pressure, absorb compression and spring back into shape. The surface retains a naturally matt finish without an oily sheen.

Very soft TPU tends to bend and buckle inside the extruder. The larger diameter of 2.85 mm helps keep the filament more stable and is designed to ensure reliable feeding through the H3C's FlexFeed extruder. Bambu Lab specifies a volumetric flow rate of up to 10 mm³/s, approximately three times that of conventional setups using 1.75 mm filament. The diameter tolerance is ±0.05 mm.

Important! Like all TPU filaments, this material absorbs moisture. Bambu Lab recommends drying it at 70 °C for eight hours before printing and storing it in a dry environment. Set Flow Dynamics Calibration to "Auto". A large dry box is required for storage, as the spool may otherwise deform and no longer fit properly.