Filaflex 95A Foamy

Filaflex 95 Foamy is a flexible TPU loaded with a foaming agent that activates with the heat of the nozzle. The printed part gains volume and loses density, and its initial hardness, Shore 95A, can drop to 70A depending on the flow and temperature settings.

At 245-250 °C with a flow of 60 to 70 %, Recreus states an expansion of 1.4 to 1.6 times the original volume, i.e. 30 to 40 % more parts per spool. The colour becomes lighter as foaming increases, which gives a visual indication of the setting.

Foaming control

At 100 % flow, the line width exceeds the nozzle diameter by about 37.5 %. The manufacturer starts from a 73 % flow to return to the nominal width, at 248 °C and 5.0 mm³/s with a 0.4 mm nozzle, then recommends lowering it in 5 % steps down to 60 % for further weight reduction. A lower volumetric speed gives the foaming agent more time to act.

Stringing is more pronounced than with a standard TPU: retraction of 2.5 to 6 mm at 75 mm/s, 0.2 mm Z-hop and travel moves at the machine's maximum speed. The filament is dried at 55 °C for at least one hour before printing.

Technical specifications

Compatibility

• FDM printers, preferably with a direct drive extruder
• Nozzles from 0.4 to 1.0 mm, with parameters documented by the manufacturer for each
• Recreus profiles for PrusaSlicer (MK4 / MK4S, CORE One, Prusa XL) and Bambu Studio (P1S / P1P, X1, A1, P2S, H2S, H2D)