VS.

Gypsum vs. Drywall

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Gypsumnoun

A mineral consisting of hydrated calcium sulphate. When calcined, it forms plaster of Paris.

Drywallnoun

A building material comprising a sheet of gypsum sandwiched between two pieces of heavy paper, used mainly for interior walls and ceilings.

Gypsumnoun

A mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety.

Drywallnoun

A wall made of this.

Gypsumnoun

a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)

Drywallnoun

A stone wall constructed without mortar or cement.

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Gypsum

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England.

Drywallverb

To install and finish drywall.

Drywallnoun

plasterboard

‘drywall partitions’;

Drywall

Drywall (also known as plasterboard, wallboard, sheet rock, gypsum board, buster board, custard board, or gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick sheets of facer and backer paper, used in the construction of interior walls and ceilings. The plaster is mixed with fiber (typically paper, glass wool, or a combination of these materials), plasticizer, foaming agent, and various additives that can reduce mildew, flammability, and water absorption.

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