As in many other additive manufacturing processes the part to be printed is built up from many thin cross sections of the 3D model. An inkjet print head moves across a bed of powder, selectively depositing a liquid binding material. A thin layer of powder is spread across the completed section and the process is repeated with each layer adhering to the last. When the model is complete, unbound powder is automatically and/or manually removed in a process called "de-powdering" and may be reused to some extent. The de-powdered part could optionally be subjected to various infiltrants or other treatments to produce properties desired in the final part.
Full Color Sandstone offers multi-color printing, making it the best material for figurines, architecture, medical models and other applications that require many colors. Although it’s a great material for decorative models, it is not well suited for handling due to its low strength and brittle nature.