More sustainable 3D printing of cores is now possible with binder jet printing of inorganic binder. The topic of sustainable manufacturing is increasingly the focus of governments, regulations and within industry itself. Now, binder jet sand 3D printing with inorganic binders opens new opportunities to produce sand cores in a resource-friendly way. Foundries and other companies, such as those in the automotive industry, can now pursue a more ecologically conscious approach, while tapping all the benefits of sand 3D printing for complex part production.