Plaster is ideally suited as a casting material and has a long tradition as such if one only thinks of the many collections of castings of ancient sculptures. It is a relatively inexpensive material and, depending on the particular product, can be processed on a purely mineral or synthetic material basis. The character, color, and consistency vary accordingly. 

Stucco marble or scagliola is an old technique for creating brilliantly colored surfaces. High-quality types of plaster, bone glue, and pigments are kneaded into one another and twisted into “Mörtellaiben” (loaves of mortar). Repeated layering results in structures with variations in color and form. The work requires precision and simultaneously the openness to incorporate random chance into the design. Slices of mortar are cut from the loaves, molded freely, and laid out on a level subsurface or in a simple form. After hardening, the surface is sanded numerous times, smoothed, and can finally be polished to a high gloss. As in the case of solid material, the existing structures and color gradients change with each phase of sanding. The volume of stucco marble provides depth and color intensity. As a result it stands out from all painting techniques that only imitate marble “on the surface.”