In recent years, the possibility of color three-dimensional printing has been introduced. The process described in this work is by ZCorporation, and is currently the only process enabling full color printing. The basic materials are in the shape of powder and binders, clear and/or colored. In order to obtain final mechanical and surface properties, 3D prints are almost always post-processed with a selected infiltrant. Since color printing was made possible, the use of 3D printing was further broadened to specific application areas, e.g. AEC, archeology and cultural heritage preservation, fine arts and design, spatial planning and public-display of models. As the application in these emerging areas requested potentially more durable 3D prints than in the native RP/CAD applications, the color stability, an integral part of the prints permanence properties, was raised as a topic of interest for both, the researchers and the users of 3D technology. This work will discuss emerging research issues in 3D printing for selected applications, as well as describe and present examples of our current and developing work on permanence and color stability in 3D ink-jet printing.