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Early 19th Century plasterer at work - painting by John Cranch (1751 - 1821).

Plaster, stucco or render is a building material used for coating walls and ceilings. It is manufactured as a dry powder and is mixed with water to form a paste when used. The reaction with water liberates heat through crystallization and the hydrated plaster then hardens. Plaster can be relatively easily worked with metal tools or even sandpaper. These characteristics make plaster suitable for a finishing, rather than a load-bearing material.

The term plaster can refer to gypsum plaster (also known as plaster of Paris), lime plaster, or cement plaster.<ref name=Ullmanns>Franz Wirsching "Calcium Sulfate" in Ullmann's Encyclopedia of Industrial Chemistry, 2012 Wiley-VCH, Weinheim. doi:10.1002/14356007.a04_555</ref>


Plaster sections
Intro  Types  Uses  Safety issues  See also  References   External links   

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