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Pictorial
technique, where the egg is used to fix pigments. Depending to
the regions
and the ages, either the yellow of the egg, or the egg in its
integer is used.
Furthermore, animal glue or oil is associated to the egg, to modify
qualities of this medium.
Traditionally, the tempera is applied on gesso (preparation containing
chalk
and animal glue, applied hot.) Gesso is sanded very carefully,
and in this way the base can also receive gilding to the sheet.
This technique was very widespread before the arrival of the oil
painting.
It is systematically used for the realization of Icons.
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