Materials · Flexible

Foaming TPU

A TPU that foams as it prints, so the part comes out lighter and softer than solid TPU.

Best for

  • Zoned comfort insoles
  • Transport-case inserts
  • Padded saddles and grips
  • RC tires

Not the right choice for

  • Load-bearing parts
  • Close tolerances
  • Warm places

Foaming TPU as a printed part

The printed surface is matte, with a fabric-like texture.

Key properties

Density0.5 to 0.9 g/cm3
Hardness63A to 78A
Elongation475 to 629 percent

What to use instead

  • TPU when you need solid, sealed, and abrasion resistant.
  • TPE when you want a solid rubber, not a foam.

The FDM material selector narrows the whole range by operating temperature, load, chemical exposure, and budget.

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