At this year’s RAPID + TCT show, polySpectra, an advanced materials company known for its durable Cyclic Olefin Resins (COR), and Tethon 3D, a U.S.-based ceramic additive manufacturing specialist, have jointly launched ThOR 10, a new composite photopolymer resin engineered for industrial 3D printing. The new material combines polySpectra’s thermally stable, impact-resistant COR platform with Tethon’s proprietary ceramic fillers, delivering a resin suited for demanding end-use parts. ThOR 10, named as a portmanteau of “Tethon” and “Olefin Resin”, is the first in a series of composite resins intended to close the gap between prototyping materials and functional, production-grade components. It targets sectors such as aerospace, automotive, electronics, and tooling, offering a potential alternative to traditional glass-filled thermoplastics like nylon, PEEK, and PBT. “Filled polymers are an incredibly important category of engineering materials,” said Raymond Weitekamp, PhD, Founder and CEO of polySpectra. “We’re excited to bring this new level of thermomechanical performance to resin 3D printing.” The composite’s toughness is underpinned by a Notched Izod impact strength of 55 J/m and elongation at break above 20%, while its glass transition temperature (Tg) of 131°C enables durability under sustained heat. Tethon 3D CEO Trent Allen emphasized the significance of combining the company’s ceramic expertise with polySpectra’s base resin platform. “These efforts are necessary to drive additive manufacturing forward and set new standards in impact resistance and thermal stability.” 3D printed ceramic parts. Photo via Tethon 3D. Advanced performance for functional parts ThOR 10 is compatible with both desktop and industrial DLP/LCD 3D printers, and builds upon COR’s reputation as a durable material designed to address the historic brittleness of photopolymer prints. According to the companies, the ceramic reinforcement significantly boosts both impact resistance and stiffness, positioning ThOR 10 for use in production-grade components across sectors such as aerospace, automotive, and electronics. Market availability and technical specifications ThOR 10 is now available in both 385nm and 405nm formulations, with orders open through polySpectra and Tethon 3D. PropertyValueMaterial TypeCeramic-filled Cyclic Olefin Resin (COR)Filler Content10% glass-filled compositeNotched Izod Impact Strength55 J/mElongation at Break>20%Tensile Modulus2.0 GPaGlass Transition Temperature (Tg)131°C (268°F)Chemical ResistanceHigh (inherent to COR chemistry)Compatible Wavelengths385 nm and 405 nmPrinter CompatibilityIndustrial and desktop DLP/LCD 3D printersApplicationsGears, impellers, tooling inserts, electronics enclosures, brackets, mounts, housings, fluidic manifoldsAvailable FrompolySpectra and Tethon 3D For full material details, view the ThOR 10 technical datasheet. Advancements in ceramic AM and photopolymer composites The launch of ThOR 10 reflects a broader industry shift toward composite photopolymers that deliver production-level performance. Ceramic-filled resins have gained traction for their ability to withstand thermal and mechanical stress, expanding the range of feasible applications in additive manufacturing. Tethon 3D, for instance, has been expanding its ceramic AM capabilities, most recently through its acquisition of TA&T, enabling in-house sintering and resin development. At the same time, polySpectra continues to develop COR based materials that offer enhanced toughness and heat resistance for both prototyping and end-use production.What 3D printing trends should you watch out for in 2025? How is the future of 3D printing shaping up? Subscribe to the 3D Printing Industry newsletter to keep up with the latest 3D printing news. You can also follow us on LinkedIn and subscribe to the 3D Printing Industry Youtube channel to access more exclusive content. Featured image shows 3D printed part made from COR Zero. Photo via polySpectra.