Difference between Wall Putty and POP

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.

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



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.


Generic term

Derived in Paris, invented by Egyptians


  • 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


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.


  • Maintenance of walls
  • Filing of small cracks
  • Castings
  • Sculptures
  • Decorative objects




Image Courtesy: tradeindia.com, pluckandfeather.com

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Simply, wall putty is used for leveling the wall surfauce, and then you need to paint paints on it. POP is a final work, you need not paint anything on it.

Which is better for interior walls, putty or pop ?

I want to know for surface finish of wall which is good a) pop b) wall care or wall putty
& wht r the method of wall surface finish like 1) pop 2) wall putty or wall putty with cement base 3) lime putty
& how we use or he we apply & constitutents.

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