Source: Siraya Tech

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That's a Flex

Siraya Tech Launches Three New Flexible Materials, Including an AMS-Compatible TPU

by Moira Daly
Published May 17, 2025

Siraya Tech has released three new flexible 3D printing materials: a foam TPU Air, AMS-compatible TPU 64D, and "highly flexible and elastic resin" Rebound 55A.

Siraya Tech has announced the launch of three new flexible materials – two filaments, one resin – that it, in a press release, calls “groundbreaking elastomer 3D printing materials”.

The company is known for manufacturing high-performance materials for different 3D printing technologies, and these additions to their catalog aim to “bring fresh dynamism and innovation” to the industry, it says.

The weight and softness of foaming filament TPU Air can be controlled by adjusting the print temperature, offering the possibility of creating prints with a Shore hardness ranging from 63A to 85A. This material can result in parts that are “up to 50% lighter than standard TPU”, Siraya Tech claims, something that can be especially beneficial for wearables or devices that are meant to be handled.

TPU 64D, meanwhile, is a filament that, with a Shore hardness of 64D, offers more rigidity while still keeping prints elastic. Meeting biocompatibility protocols (having undergone ISO 10993 testing) and compatible with Bambu Lab’s AMS, it’s been designed for both demanding mechanical use and ease of printing.

Last but not least, a new elastomer resin material, Rebound 55A, is claimed to rebound and resume its original shape 3-5 times faster than standard options – which can be useful for prints prone to impact or which need to recover their form quickly.

While only available in the US via Amazon – filaments and resin – at time of launch, rollout is expected shortly via the official website and internationally.

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