Plaster Of Paris (POP)

Plaster of Paris (POP) is a building material having Gypsum as its main component. It is used for coating walls and ceilings and also for creating architectural designs. Plaster of Paris is manufactured as a dry powder and is mixed with water to form a paste when used. Below are some of its advantages and disadvantages to give you an idea whether you should use it in your dream home or not.

  • It is light in weight and more durable.
  • It has low thermal conductivity.
  • It is very good fire resistant and hence a very good heat insulating material.
  • It does not shrink while setting. Therefore, it does not develop cracks on heating or setting.
  • It forms a thick surface to resist normal knocks after drying.
  • It mixes up easily with water and is easy to spread and level.
  • It has good adhesion on fibrous materials.
  • It gives a firm surface on which the colours can settle.
  • It has no appreciable chemical action on paint and does not cause alkali attack.
  • Plaster of Paris gives a decorative interior finish. Its gypsum content provides it a lot of shine and smoothness.
  • It can easily be moulded into any shape.
  • Gypsum plaster is not suitable for exterior finish as it is slightly soluble in water.
  • It is more expensive than cement or cement lime plaster.
  • It cannot be used in moist situations.
  • Skilled labour is required for precise application and thus labour cost for applying plaster of Paris is high.
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