Difference between Wall Putty and POP

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Key Difference: Wall putty is used for purposes like leveling of wall surfaces, and being a protective base for expensive paints and many more. On the other hand, POP short for Plaster of Paris, is a white powder that is used for the outside layer of building and walls.

POP (Plaster of Paris) Wall putty is based on cement or white powder. It is made for exterior and interior walls, which is used for providing a protective base, especially for expensive paints. It is also used to fill pores in walls and ceilings. For minor jobs, putty can be easily applied by a brush or with a spray.

TheFreeDictionary.com defines POP (Plaster of Paris) as, “a white powder that sets to a hard solid when mixed with water, used for making sculptures and casts, as an additive for lime plasters, and for making casts for setting broken limbs. It is usually the hemihydrates of calcium sulphate, 2CaSO4.H2O”. Plaster of Paris is also a major ingredient of the typical cast for the human body that is, hip spica cast, long arm cast, cylinder cast, short leg patella tendon bearing cast and short arm cast.

The detailed comparison between wall putty and POP are given below:

	Wall Putty	POP
Description	Wall putty is a mixture of whitening powder and linseed oil that is used to prepare wall surface smooth or plane.	POP is any group of gypsums (calcium sulphate dihydroxide, or sulphate of lime). The process which involves the gypsum to very high temperature to create calcium sulphate and then grinding it into a fine white powder.
Term	Generic term	Derived in Paris, invented by Egyptians
Types	Fine Putty (SF) Coarse Putty (MF)	Plaster of Paris (Gymsum) Lime Plaster Cement Plaster
Duration to dry (depends on temperature and humidity)	Minimum 24 hours Maximum 48 hours	Minimum 24 hours Maximum 72 hours
Advantages	Water-resistant ensures that the paint doesn’t flake off even when the walls are damp.	It is the solution to interior drywall and plaster surface problems.
Uses	Maintenance of walls Filing of small cracks	Castings Sculptures Decorative objects
Focus	Walls	Appearance

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