FLAME RETARDANT PHOTOPOLYMER (RESIN) FOR INDUSTRIAL 3D PRINTING 

Photopolymers are material compositions based on polymers/oligomers/monomers which can be selectively polymerized and/or crosslinked upon image-wise exposure by light radiation such as ultra-violet light. For final use, they are made into different forms like, for instance, Evonik's liquids or resins in other words. 

The family of INFINAM® FR photopolymers exhibits excellent flame retardancy as well as mechanical durability once cured.  

INFINAM® FR 4100L is a photopolymer resin that meets the unique requirements of aerospace, automotive and electronics applications. Designed for use with DLP (digital light processing) 3D printers, the resin is both flame retardant and mechanically durable when cured. The resulting product also exhibits high elongation at break, good haptics and is strong enough to withstand contact with sparks, flames and various types of fuels. 

• Certified UL 94 V-0 flame retardancy rating at 3mm 
• Fire, smoke and toxicity (FST) rated 
• Liquid at room temperature 
• Superior elongation at break 

Evonik’s INFINAM® FR photopolymer 3D printing materials for DLP technologies have been designed at the group’s Asia Research Hub in Singapore. With the research hub, Evonik is expanding its collaboration with public and private research institutions and organizations. For instance, Evonik has formed a partnership with Nanyang Technological University, Singapore to develop novel technologies in 3D printing for industrial application. Therefore, Singapore is Evonik’s Research & Development Center for application driven development of new ready-to-use photopolymer 3D printing materials that can be processed on a wide range of common SLA and DLP machines commercially available on the market. 

Evonik introduced the first grade of its flame retardant photopolymers with INFINAM® FR 4100 L to fill this gap in the material landscape. This fast curing and easy to process photopolymer 3D printing material shows superior resistance to contact with flames, sparks and various types of fuels. INFINAM® FR 4100 L is has a certified UL 94 flame retardancy rating of V-0 at 3mm thickness. Once cured, the resulting product features high elongation at break, good haptics, and an excellent surface finish that can be further machined and polished. It also exhibits a level of toughness similar to materials made of ABS (acrylonitrile butadiene styrene) plastic. 

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