Xtellar, a materials 3D printing company created through the combination Braskem’s 3D materials division and Taulman3D, has introduced a new type of materials for large-format 3D printing: the bio-based EVA pellets.
Designed for a variety of large-format 3D printers, EVA is a clear, hygroscopic, amorphous elastomeric material that is bio-based and sourced from raw sugar cane feedstock. According to the company, the material, sourced from sustainable raw sugar cane feedstock sources, delivers a lower carbon footprint than traditional fossil fuel-based materials.
“Bringing a wider variety of sustainable material options to 3D printing is one of Xtellar’s core missions. In 2022, we launched the industry’s first bio-based polyethylene and flexible EVA 3D printing filaments, and this year we continue our mission by launching the first bio-based flexible EVA pellets specifically formulated for large-format 3D printing applications,” said Jason Vagnozzi, CEO, Xtellar.
The maerial’s formulation provides a sustainable alternative to traditional flexible TPE and TPU materials currently available on the market. Xtellar’s formulation delivers a unique combination of sustainability, flexibility, ductility, light-weighting, and moisture resistance – in pellet form, the company explains.
EVA pellets would be compatible with large-format 3D printing machines such as the ones from Titan Robotics (3D Systems), Caracol, Thermwood LSAM and custom multi-access robotic arm systems.
Not only can it be used as an alternative to TPUs and TPEs on the market, but it could also deliver applications across the automotive, marine, aerospace, consumer, industrial sectors.
Key Test Specs
- 89 Shore A
- Lightweight: density of 0.94 g/cm3
- 300% elongation in XY direction
- 100% bio-based polymer made from raw sugar cane
- Hydrophobic material: no drying is needed
- -36C glass transition temperature (great for low-temperature climates)
- Controllable opacity and stiffness with external cooling
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