Joint compound
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Joint compound is a white powder of primarily gypsum dust mixed with water to form a paste with the consistency of cake frosting, which is spread onto drywall and sanded when dry to create a seamless
Kitchen renovation spackling to cover holes and tape between sheetrock boards
Drywall with joint compound applied.
Workers applying joint compound to drywall.
Plaster
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Plaster is a building material typically used for cladding on interior walls, pool interiors, ceilings and for moulding and casting decorative elements. In English, "plaster" usually means a material
Joint compound
…walls and ceilings that are pre-sealed and coated with a joint compound. Until the last century, several different plasters such as veneer plaster and "plaster of Paris" have been used in similar ways to joint compounds as fillers or for decorative purposes since ancient times, and the actual make up, and working…
plaster reliefs, such as this work at the Château de Fontainebleau, were hugely influential in Northern Mannerism. A plaster low-relief decorative frieze is above it.
Applying mud plaster to an outside wall
Clay plaster base coat on split oak lath held in place with straw and manure, covered with a lime plaster top coat, Old Economy Village, Pennsylvania (1827)
Lime setting-coat on clay plaster with straw binder. Applied to hand-split lath over a timber framed wall of a brick family house at Old Economy Village, Pennsylvania