Buon fresco
Buon fresco (Italian for 'true fresh')[1] is a fresco painting technique in which alkaline-resistant pigments, ground in water, are applied to wet plaster.
It is distinguished from the
Description
The buon fresco technique consists of painting with pigment ground in water on a thin layer of wet, fresh, lime mortar or plaster, for which the Italian word is intonaco. Because of the chemical makeup of the plaster, a binder is not required.
After a number of hours the plaster reacts with the air in a process called carbonatation. This chemical reaction fixes the pigment particles at the plaster's surface in a protective crystalline mesh known as the lime crust.[2]
The advantage of buon fresco is its durability. In fresco-secco, by contrast, the color does not become part of the wall and tends to flake off over time. The chief disadvantage of buon fresco is that it must be done quickly without mistakes.
The painter plasters and paints only as much as can be completed in a day, which explains the Italian term for each of these sections, giornata, or a day's work. The size of a giornata varies according to the complexity of the painting within it. A face, for instance, might take an entire day, whereas large areas of sky can be painted quite rapidly.[3]
History
Frescoes dating from the 17th century BC using this technique have been found in the excavations of Akrotiri on the island of Santorini in Greece, changing our beliefs about art in prehistoric times. One of the first painters in the post-classical period to use this technique was the Isaac Master in the Upper
See also
Notes
References
- Stokstad, Marilyn; Art History, 2011, 4th ed., ISBN 0-205-79094-1
External links