cement plaster or gypsum plaster - which is the best plaster ?

Cement Plaster vs Gypsum Plaster

https://askciviltech.blogspot.com/2020/06/knowledge-of-cement-concrete-behaviour.html

    The rich contribution of plaster to the beauty and preservation of the surface of the walls need hardly be debated. The most popular types of plaster used for building construction are cement and gypsum plaster.

This ointments are used for external and internal plastering of the building.

 They form a protective layer that covers stone and brick masonry with RCC walls and ceilings. Additionally, wall plastering is effective in leveling wall and ceiling surfaces,

Gypsum and cement are also used to make textures or plaster and finishes.

cement plaster:-

Cement plaster is a homogeneous mixture made of Portland cement, sand, and water. The thickness of cement plaster is usually between 12 and 20 millimeters, depending on the type of wall or roof surface that needs to be plastered.

Note: A rich cement plaster mixture is obtained by mixing one part 

The pros

Cement plaster can be used to plaster both the exterior walls and the interior walls and ceilings of the building.
The outer cement plaster on the front of the building is the first line of defense of the building from wind, rain, and harmful industrial gases and pollution of vehicles.
Unlike gypsum plaster, cement plaster is resistant to moisture.

Cons:-

The final finish of cement plaster is very thick and gray in color. The walls should be treated with Plaster of Paris Pingting to achieve a smooth finish before the application of wall paint. Punishment is the application of thin layers of plaster or mortar to a wall for a smooth and flat finish.
Cement plaster has a tendency to shrink, resulting in hairline cracks on the plaster surface.
The cement-plastered surface requires treatment with water (a chemical reaction that gains strength) for at least seven days. Note that improperly fixed walls develop cracks.
Cement plaster is prone to attacks by mold or mildew.

gypsum plaster

The gypsum plaster factory is manufacture. Unlike cement plaster, it is white. It is available in powder form and mixed with water.

form a paste that can be applied directly to the wall and roof surfaces.

The approximate thickness of gypsum plaster is 11 millimeters for walls and 8 millimeters for ceilings. Gypsum plaster is also used to make roof design.
Industrial Living Room by Imperial Intermediate Imperfect Interiors

The pros

Gypsum plaster gives walls and ceilings a smooth, level surface that is ready to receive paint. Therefore, this POP reduces the glare cost that has to be incurred for plastered surfaces of cement.
Gypsum plaster paste is much easier to work and prepare than cement plaster.
This plaster is highly resistant to mold and mildew.
It does not shrink because it undergoes very little expansion and contraction.
Gypsum is a green product, as it can be recycled infinitely. Made from natural gypsum rock.

it is dehydrated to produce a plaster powder.

Adding water produces gypsum plaster. This plaster can be saved into powder plaster for reuse.
The biggest advantage of going with gypsum plaster is that it dries very fast - within 24 hours. However, the surface of the wall or roof should be painted only 72 hours after application.
Due to the low thermal conductivity of gypsum, it keeps your home warm during cold months and cool during hot summers.
Gypsum plaster has great resistance to fire.

Cons:

The disadvantage of gypsum plaster i ins, it can only be used in building interiors; It is not suitable for outdoor plastering.

Gypsum plaster should not be used in moisture-filled areas such as bathrooms, kitchens, balconies or dry cellars.
Gypsum is a better finish than cement plaster.

However, it is advisable to go with gypsum plaster for interior walls and ceilings and use cement plaster for the exterior parts of the building.