Evonik launches three new photopolymers for 3D printing, ready to showcase products at Formnext


Evonik launched three new INFINAM photopolymers for industrial 3D applications, expanding the range of photoresists products launched last year. The product line is intended for use in common UV-cured 3D printing processes such as SLA or DLP. With a total of seven new photopolymer formulations, Evonik claims to have “diversified the landscape of additive manufacturing materials” in less than two years.

The three new photopolymers are:

  • INFINAM RG 2000L
  • INFINAM RG 7100L
  • INFINAM TI 5400L

INFINAM RG 2000 L is a photoresist for the eyewear industry. The clear liquid formation hardens quickly and is easy to deal with according to Evonik. The company says the low yellowness index, even after prolonged UV irradiation, makes it not only attractive for additively manufactured spectacle frames, but also suitable for applications such as microfluidic reactors or transparent high-end prototypes. for observing the inner workings of complex assemblies.

The light transmission of the RG 2000 L also opens up other applications such as lenses, light guides and light covers.

INFINAM RG 7100 L has been specially developed for DLP printers and enables the production of parts with isotropic properties and low moisture absorption. Evonik says the mechanical properties are comparable to an ABS material and the black color formulation can be used on high throughput printing systems.

According to Evonik, the RG 7100 L has fine features such as smooth and glossy surfaces, making it ideal for demanding design visualizations. It can also be used in applications such as drones, buckles or automotive parts that require high ductility combined with high impact resistance. The company claims that the parts can be machined and remain resistant to breakage even when subjected to high forces.

INFINAM TI 5400 L is an example of application-oriented product development. According to Evonik, it meets customer demands, particularly in the Asia region, for a PVC-like resin for the limited-edition designer toy market.

Evonik says the white-colored material is ideal for objects with a high level of detail and excellent surface quality. The surface quality of the material is virtually indistinguishable from comparable injection molded parts according to the company and combines “excellent” impact resistance with high elongation at break and exhibits durable thermomechanical performance.

“As one of Evonik’s six innovation growth areas, we invest above average in the development of new formulations or the development of existing products. A vast material landscape is the basis for permanently establishing 3D printing as another large-scale industrial manufacturing technology,” said Lutz Mindach, Head of Research Development and Additive Manufacturing at Evonik.

Evonik will present the new wallet to Next form 2022 in Frankfurt later this month.

Evonik has also recently launched a new material grade INFINAM in polyamide 12 with a significant reduction in CO2 emissions.

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