Fresco Painting is a method of mural painting in water colours on fresh or wet grounds of lime or gypsum. Mineral or earthy pigments are employed, which resist the chemical action of lime. In drying, the colours are incorporated with the plaster, and are thereby rendered as permanent as itself.
In producing fresco paintings, a finished drawing on paper, called a cartoon, exactly the size of the intended picture, is first made, to serve as a model. The artist then has a limited portion of the wall covered over with a fine sort of plaster, and upon this he traces from his cartoon the part of the design suited fur the space. As it is necessary to the success and permanency of his work that the colours should be applied while the plaster is yet damp, no more of the surface is plastered at one time than what the artist can finish in one day. A portion of the picture once commenced, needs to be completely finished before leaving it, as fresco does not admit of retouching after the plaster has become dry. On completing a day's work, any unpainted part of the plaster is removed, cutting it neatly along the outline of a figure or other definite form, so that the joining of the plaster for the next day's work may be concealed.
The art is very ancient, remains of it being found in India, Egypt, Mexico, etc. Examples of Roman frescoes are found in Pompeii and other places. After the beginning of the 15th century fresco painting became the favourite process of the greatest Italian masters, and many of their noblest pictorial efforts are frescoes on the walls of palaces and churches. Some ancient wall-paintings are executed in what is called Fresco Secco, which is distinguished from true fresco by being executed on dry plaster, which is moistened with lime-water before the colours are applied. Fresco painting was revived during the 19th century, and works of this kind were executed in the British Houses of Parliament and other public and private buildings, more especially in Germany. Research Fresco
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