Highly flexible 3D printing materials from Sirris

Sirris opens new possibilities to additive manufacturing businesses by enabling them to test 3D printing of polyurethane.

Thermoplastic polyurethane, a flexible material that is resistant to abrasion, is an attractive choice in many applications. It offers excellent compressive strength and can be stretched more than 300% before failure. In addition, shape memory properties allow it to resume its initial shape after deformation as soon as the stresses are removed.

Thanks to the acquisition of a new polymer powder sintering machine, within the framework of Feder Iawatha, Sirris is now able to process TPU.

By combining the properties of the material with those of lattices, it is possible to achieve encouraging results.
This enables for example to print a component which can be squashed almost completely and instantly resume its shape once released, or another from the same material, which behaves anisotropically to deformation.

Possible TPU applications include soft grip handles, shock-absorbing electronic control boxes, soft grippers, and many more.

Sirris is currently working on the printing of TPU objects with hardness gradient (Shore A 70 to 90 for example) to further expand possibilities.


Author: Maxime Legrand