colorFabb varioShore PEBA 40D/85A Natural, 1,75 mm / 600 g

colorFabb varioShore PEBA 40D/85A is a foaming filament based on polyether block amide, offering adjustable softness, low weight and pronounced rebound. Unlike conventional TPU, which absorbs energy when compressed, PEBA releases it quickly again, making it well suited to dynamic, springy applications rather than purely cushioning ones.

Foaming for lower weight and a different feel

As with the varioShore TPU range, the print temperature controls how much the material foams during printing. Higher temperatures produce more foaming and therefore lighter, softer parts, while lower temperatures result in denser, firmer prints. A single spool can therefore cover a broad range of hardness levels.

Springiness rather than just flexibility

Printed parts quickly return to their original shape after repeated compression or bending. This combination of softness and rebound makes PEBA 40D/85A suitable for applications where parts need to respond under load and then reliably spring back into shape.

Stable across a wide temperature range

Even in cooler environments, where many flexible materials become noticeably stiffer, PEBA 40D/85A remains comparatively flexible. Combined with good fatigue and chemical resistance, this makes the material suitable for outdoor and engineering applications involving repeated mechanical stress.

Can be combined with varioShore TPU

For parts that require both cushioning and springy zones, PEBA 40D/85A can be combined with varioShore TPU 85A or 95A. A mechanical interlock between the print paths is recommended so the two materials engage physically with one another rather than relying solely on material-to-material adhesion.

Note: Like many technical flexible filaments, PEBA absorbs moisture from the air, which can affect surface finish and print quality. The filament should therefore be kept dry before and during printing.