Carbon, Inc.

EPU 44

Highly Resilient, Tear Resistant, 40% Bio-Based

Highly Resilient, Tear Resistant, 40% Bio-Based

EPU 44 is production-scale, resilient elastomer that is highly resilient, tear resistant, and more sustainable due its 40% bio-based formulation. EPU 44 enables lighter lattices than EPU 41 when designed with equivalent stiffness, requiring less material. EPU 44 has a higher green strength as well, allowing for more printable geometries. EPU 44 prints faster than EPU 41, and its higher green strength helps protect yield of delicate designs.

As a production scale offering, EPU 44 is only offered as a General Factory product, requiring industrial-class dispensing, cleaning, and baking equipment. It is comparable to commercial TPUs with a Shore A hardness of 70.

adidas 4DFWD sneaker, in black and neon green, close up on toe

40 %

Biobased

78

Durometer (Shore A Hardness)

35 kN/m

200 lbf/in

Tear Strength

275 %

Elongation At Break

-5 °C

23 °F

Glass Transition Temperature

More Possible Parts

EPU 44 has a high green strength, allowing for more printable geometries than softer resins.

Cold Temperature Performance

EPU 44 retains its elastomeric properties to -5 °C temperatures.

Biocompatibility

EPU 44 has passed requirements for biocompatibility according to ISO 10993-5 and -10.

Example Applications

Cushioning with Elastomeric Polyurethane

Bouncy elastomeric lattices maximize comfort with precision tuning of energy return. EPU 44 offers new ways to optimize these parts. EPU 44 enables lighter lattices than EPU 41 when designed with equivalent stiffness, requiring less material. EPU 44 has a higher green strength as well, allowing for more printable geometries.

These applications combine a need for sustainability, high resilience, tear resistance,  and energy return, in addition to isotropy, great surface finish, and accuracy.

adidas 4DFWD sneaker, in white and pink
Man adjusting his socks, wearing adidas 4DFWD sneakers

Experience EPU 44

Interested in leveraging EPU 44 for a production project? Get in touch with our team.

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3D Printed Parts in Production

adidas 4DFWD sneaker, in black and orange

adidas 4D Midsole

adidas’ next-gen 4DFWD midsole uses an elastomeric lattice, made with EPU 44.

Discover adidas 4DFWD