Plaster of Paris is a type of plaster made from white powder and water which dries quickly. It is used to make plaster casts. Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, CaSO France.]. a mixture of a white powder and water that dries fairly quickly and is used for making plaster casts and to decorate buildings. Quick-setting gypsum plaster consisting of a fine white powder, calcium sulfate hemihydrate, which hardens when moistened and allowed to dry. It is made by heating gypsum to 250-360°F (120-180°C). Used since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found in Paris. It is used to make molds and casts for ceramics and sculptures, to precast and hold ornamental plasterwork on ceilings and cornices, and for orthopedic bandages (casts). In medieval and Renaissance times, gesso (plaster of paris mixed with glue) was applied to wood panels, plaster, stone, or canvas to provide the ground for tempera and oil painting
any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs
Also known as plaster, it can be mixed with water, hardening to a smooth solid which does not shrink or lose volume, because it hardens before all the water can evaporate A common building material as well as a versatile medium in sculpture A kind of plaster that is popularly used for carving and making casts It is made up of dehydrated gypsum and is mixed with water