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According to the Benozzo Gozzoli Museum, Castelfiorentino, Italy, the "Strappo" technique is the least invasive method of wall painting removal because unlike stacco a massello or stacco, it "involves removal of only the topmost layer of plaster, which has absorbed the pigment" as described in the video, The Strappo Technique produced by the ...
The oldest method, known as the a massello technique, involves cutting the wall and removing a considerable part of it together with both layers of plaster and the fresco painting itself. The stacco technique, on the other hand, involves removing only the preparatory layer of plaster, called the arriccio together with the painted surface.
Animal glue in granules. Animal glue is an adhesive that is created by prolonged boiling of animal connective tissue in a process called rendering. [1] In addition to being used as an adhesive, it is used for coating and sizing, in decorative composition ornaments, and as a clarifying agent.
A horse's tail. Horsehair is the long hair growing on the manes and tails of horses.It is used for various purposes, including upholstery, brushes, the bows of musical instruments, a hard-wearing fabric called haircloth, and for horsehair plaster, a wallcovering material formerly used in the construction industry and now found only in older buildings.
Painting types include fine art to decorative and functional objects spanning from acrylics, frescoes, and oil paint on various surfaces, egg tempera on panels and canvas, lacquer painting, water color and more. Knowing the materials of any given painting and its support allows for the proper restoration and conservation practices.
Lime plaster is a type of plaster composed of sand, water, and lime, usually non-hydraulic hydrated lime (also known as slaked lime, high calcium lime or air lime). Ancient lime plaster often contained horse hair for reinforcement and pozzolan additives to reduce the working time.
However, this method is not applicable when using oil pastels. This technique is frequently employed in art classes to introduce novice art students to the sgraffito technique. In the process of stained glass creation, finely ground pigments of black, brown, and yellow colors, mixed with either water or glycerin, are delicately applied to sheet ...
To prepare the stone walls of the buildings for frescoes, the walls were first covered with a mixture of mud and straw, then thinly coated with lime plaster and lastly layers of fine plaster. The palette of the paintings consists of white (from the lime plaster), red (derived from ferrous earths and haematite), yellow (from yellow ochre), blue ...