The colors can thus be absorbed by the wet plaster. When it dries and hardens, the colors become one with plaster. Technically speaking the plaster does not dry but rather a chemical reaction occurs in which calcium carbonate is formed as a result of carbon dioxide from the air combining with the calcium hydrate in the wet plaster. Early morning hours . This marks the beginning of painting day - giornata.
Painting is the final and most challenging, of course, stage in creation of the fresco.
Full scale detailed compositional rendering - cartoon should be developed and pounced tracing made. Color study should be created, it will be used for mixing right color tones and general color reference. Try about 25 different tones. After the final intonaco is applied it should be left for about 20min to settle. Late Morning - Ilia Anossov is working on monochrome under painting.