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Feb 18, 2024 · Key Takeaways: Plaster of Paris is a gypsum-based casting material used for sculpting and creating orthopedic casts. Its ability to harden quickly when mixed with water makes it ideal for various art and craft projects. Plaster of Paris has a long history of use in construction, art, and medicine.
In medieval and Renaissance times, gesso (usually made of plaster of paris mixed with glue) was applied to wood panels, plaster, stone, or canvas to provide the ground for tempera and oil painting. Plaster of paris is prepared by heating calcium sulfate dihydrate, or gypsum, to 120–180 °C (248–356 °F).
- The Editors of Encyclopaedia Britannica
In the nineteenth century, plaster became a primary medium for finished ecclesiastical, commercial, educational, and domestic objects, as well as for preliminary sculptural maquettes and finished casts that reproduced fine art objects for aesthetic and educational circulation in collections in museums, universities, and other schools across ...
In the 14th century, Giotto, the notable Italian painter, used a finishing gesso of parchment glue and slaked plaster of paris. In medieval tempera painting, background areas intended for gilding were built up into low relief with gesso duro (hard gesso), a less absorbent composition also used for frame moldings, with patterns often pressed ...
- The Editors of Encyclopaedia Britannica
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Originally, the term ‘plaster of Paris’ was coined in the 1700s to describe plaster produced from gypsum located outside of Paris. Over time, the term ‘plaster of Paris’ has become the generic term for gypsum-based plaster. Many ancient Egyptian tomb paintings are created on plaster.
Educational: Plaster of Paris is used in schools and colleges for educational demonstrations and laboratory purposes, due to its availability, cost-effectiveness, and ease of use. Its uses, however, are not limited to these fields. The adaptability of Plaster of Paris permits its application in other domains, such as fireproofing and dentistry.
Aug 31, 2018 · Lot 243A, Norman Rockwell, John Wayne, Oil on canvas; Estimate $1,000,000 - $1,500,000. The final painting, John Wayne, graced the cover of Country Gentleman magazine in the summer of 1976. Commissioned by the National Cowboy Hall of Fame and Western Heritage Center, to celebrate Wayne’s induction into the Hall of Great Western Performers ...
