What Is Gypsum Plaster?

December 16, 2021
What Is Gypsum Plaster?

Plastering is a finishing method that has been used for a very long time. It’s used to make a block or brick wall look nicer by leveling out the surface.

Plastering not only adds aesthetic value but also protects the underlying structure from elements like rain and wind.

Various plasters are employed in different works, depending on the desired finishes, components, popularity, and required proportions. 

For example, many plasters are present in the market, such as Gypsum, lime, and cement. However the use of gypsum plaster has become more popular in the last several decades and is now taking the place of older plasters made of lime and cement.

As a soft sulfate mineral, Gypsum comprises Calcium Sulphate Dihydrate (CaSO4) (CaSO4:2H20). It is popularly used as a fertilizer in sculptures and moulds. The construction industry has sparingly made use of gypsum plaster, despite it being a far older material than cement and sand plaster.

Due to its qualities, Gypsum is now a wonder material in interior construction. With the different types of gypsum plaster, the construction of homes has become better.

How long has gypsum plaster been in use?

Plaster of Paris, also known as Gypsum, has been around for a long time. For ages, it’s been used in the construction industry because of its superior characteristics. Ancient Egyptians applied it to the Cheops Pyramid as wall plaster. The longevity and performance of gypsum plaster are seen in the pyramid of Giza in Egypt, where it was used as an inside plaster.

What Is Gypsum Plaster?

When water is added to the dried POP powder, it hardens. Gypsum plaster is the name given to the material used to create a smooth surface on top of brick, block, or concrete. In spite of its popular use, people often do not know what is gypsum plaster.

Gypsum plaster replaces Portland cement with Gypsum as a binding substance. It is a white cementing substance formed by dehydrating Gypsum to a partial or complete degree. Dry gypsum powder hardens when water is added to it. It’s ready to use and doesn’t require any sand.

All that’s needed to get started is a little bit of water. Levelled walls with the greatest finish are provided together with excellent thermal and acoustic features.

Benefits Of Gypsum Plaster

Using gypsum plaster on the interior will provide you with a smooth surface to apply high-quality paints and wallpapers. It can be used on any wall surface, including smooth and textured ones. Compared to typical cement mortar, gypsum plaster is easier to apply and needs less manual labour.

The surface should be properly prepared to avoid cracks and peeling, and gypsum plaster should be applied.

Also Read: Top 5 Wall Putty In India

Types Of Gypsum Plaster

Gypsum plasters can be divided based on the heat energy they get throughout the manufacturing process. Below are the two types of gypsum plaster

  • Plaster made from anhydrite gypsum heated to 1700C
  • Plaster is made from hemihydrate gypsum, which is made by heating gypsum, formulated with special additives like perlite, and vermiculite to enhance working & setting characteristics.


Perlcon is one of the best companies in manufacturing and providing first-rate gypsum plasters. When in doubt, go to Perlcon. From the product quality to the exquisite service assistance, you will not be impressed. Contact Perlcon now for the best quality gypsum plasters!