Others were painted on to a dry plaster surface.
This Montreal artist makes expansive, glowing landscapes in egg tempera on plaster surfaces.
Drill and plug the wall so you can anchor the mounting box in place, ensuring it lies just below the plaster surface.
Salts crystallise in these pores rather than on the plaster surface, avoiding decorative spoiling.
Pilasters and figures of light colored sandstone clearly projected from red plaster surfaces.
The original plaster surfaces were designed to look like ashlar and the corners were vividly highlighted.
Except for plaster moldings, plaster surfaces tend to be flat.
Sometimes a thin, small, rectangular piece is cut from the plaster surface.
This involves thick layers of pigment being applied and worked onto a wet plaster surface.
Rapid freehand sketches with a sharp stylus, often corrected, have left their mark in the plaster surface.