May 25, 2023

CEMENT PLASTER VS GYPSUM PLASTER

Coating your walls and ceilings has many benefits. Plastering is important both inside and out to give it strength and stability. Plaster can also be used to protect stones and bricks. This will extend their life.

Plaster of high quality will ensure that your walls last a long time, are visually pleasing, and are well protected. Let’s look at the reasons why plastering can be a great option.

Plastering can have a variety of advantages. Plastering is essential for interior and exterior walls to be strong and stable. Plaster can also be used to seal porous material like bricks and stones, which will extend their life expectancy and make it easier to control the temperature inside.

Plastered surfaces are more tolerant of uneven surfaces and can be further enhanced by creative treatments. Professional plasterer in Canterbury is a great way to reduce dust and make a house more hygienic.

Cement and gypsum are the most common ingredients in plaster.

It’s important to weigh the pros and cons of each material when deciding what is right for your home.

Construction businesses can greatly benefit from technological advances, new discoveries, and ongoing trends. Each of these innovations aims to reduce construction time and increase output. The technique of gypsum and cement plastering are both ancient.

The Egyptian pyramid in Giza was the very first building that used gypsum for its interior walls. The durability and effectiveness of Gypsum Plaster.

This layer of plaster protects the masonry (bricks, stones, etc.) and reinforced concrete (RCC) ceilings and walls.

Plastering walls and ceilings is a good way to even out the surface. You can make textured or stucco finishes using gypsum or cement.

Gypsum plaster vs. Cement plaster

Plaster is a great way to improve the appearance and durability of your walls. In construction, the most commonly used plasters are gypsum and cement variants.

Plastering has been used for centuries to protect buildings from water damage, and hide unsightly studs. Pests can, for instance, be seen as a benefit to the building due to their impact on the environment.

Portland cement, water, and sand are the three main ingredients of plaster-cement.

You can adjust the proportions of cement plaster according to your needs. cement mortar is available in both pre-measured and ready-to mix volumes.

Cement plaster is used to finish the walls, inside and outside.

The cement plaster is used to finish the walls on both the inside and outside. The gypsum, or hydrous calcium sulphate as it is known by chemists, occurs in nature and is water soluble, crystalline and widely used for construction.

Chalky Plaster is made by heating gypsum at low temperatures to remove the water. The plaster of gypsum can be used to repair broken bones and casts. Gypsum is used widely as a decorative wall and ceiling covering.

What are the advantages of plastering?

Plastering protects a wall from moisture, heat and rain. Plaster walls are easier to fix if they get damaged.

Compare Cement Plaster with Gypsum Plaster

Compotion

Construction of a wall made from cement plaster. Plaster is a water-based homogenous substance made from Portland cement, sand and other ingredients.
Use of gypsum. The gypsum is extracted to make a white cementing material called gypsum plaster. As a binding agent, gypsum is used instead of Portland cement.

Surfaces

The construction of a wall using cement plaster. The cement plaster should not be used on smooth surfaces.
Use of gypsum. The use of gypsum plaster.

Shrinkage

Construction of a wall made from cement plaster. Cement plaster can shrink due to its low strength and tensile.
Use of gypsum. Gypsum plaster has excellent shrinkage resistance due to its high tensile strength and flexibility.

Cost

Construction of a plaster. The project will take longer and cost more. Cement plaster is cheaper than gypsum.
This is a plaster construction. Cement plaster costs more for the same thickness. The application of gypsum is time-consuming, but the savings are worth it in the end.

Cure

The construction of a wall using cement plaster. Cement plaster needs two different curing times. One immediately after the other.
Use of gypsum wall plaster. Gypsum does not need to be dried between applications.

Fungus

The cement-based plaster does not provide a good defence against mould and mildew.
It is possible to use gypsum plaster in humid climates or bug-infested areas without it deteriorating.

Thickness

The construction of a wall using cement plaster. Cement plaster must be at least 10 millimetres thick. Cement plasters are available in many different thicknesses, and can be used to create various surface finishes, colors, and textures.
Use of gypsum. The finish coat is usually 2 millimetres, and the undercoat 11 millimetres on walls, and 8 millimetres on ceilings.

Lightness

Building a wall with cement plaster. Cement plaster is heavier than gypsum, so it should be avoided as much as possible.
Use of gypsum-based plaster. The use of gypsum plaster is lighter and less dense than cement plaster.

Wastages

Building a cement-plaster wall. When working with cement, plaster is frequently lost.
Use of gypsum. Gypsum plaster is a very low-waste material.

Mixture

Construction of a wall using cement plaster. The cement and sand mixture can be mixed to the desired proportions. As unskilled workers usually do this work, perfection and exactitude are not realistic goals.
Use of gypsum. You can buy bags of ready-to-use, pre-mixed gypsum. The addition of water is all that’s needed. This saves time, energy, and resources.

Fire

The construction of a wall made from cement plaster. Although initially resistant to flames, cement plaster gradually weakens, cracks and falls from the wall.
Use of gypsum. A gypsum fire barrier protects the flammable steel, concrete and blockwork.

Bonding

Building a cement-plaster wall. Use of the surface requires that it is not polished.
Use of gypsum. The composition and structure of gypsum plaster allows it to be applied on both smooth and rough surfaces.

Workability

Building a cement-plaster wall. The rustic appearance of Gypsum Plaster is enhanced by applying Cement Plaster over it. The smooth surface of Gypsum Plaster makes it ideal for painting.

Rust

Building a wall with cement plaster. Cement plaster cannot stop rust.
Use of gypsum. Use of gypsum can help prevent metal fittings and tubing from rusting.

Setting Time

Building a cement-plaster wall. Wait at least 24 hours in between layers if you’re using Portland cement to plaster your interior walls. After 48 hours, the final coat of interior cement can be plastered.
Use of gypsum. The drying time of gypsum plaster can be quantified. The time between coats should be short.

Environment-friendly

Building a wall with cement plaster. Cement plaster cannot be used indefinitely.
Use of gypsum. The use of gypsum plaster is a good alternative.

Finish

Building a cement-plaster wall. After sand-cement plastering, a POP punning is performed to create a level and flat surface. Grey dominates the room, making it seem cramped.
Use of gypsum. Gypsum plaster can be applied to ceilings and walls to create a uniform surface. It also serves as a base for decorating the wall with paint or wallpaper. The dazzling white color of the gypsum makes the room appear larger and more attractive.

Which is better for plastering: Gypsum or Cement?

A Cement Plaster

Cement plaster is made by mixing cement, sand and water. Standard cement-to-sand ratio is 1:4. The recommended plaster thickness varies from 12 to twenty millilitres depending on the surface to which you are applying it. Plaster mixtures with plasticizers may be impenetrable by insects.

Pros

Cement Plaster can be used both for interior and exterior finishes.

The best option for exterior walls is cement plaster because it is resistant to moisture, and protects against the effects of pollution and climate change.

Cement plaster is also the best alternative to interior plastering due to its long-lasting nature. Cement can be used to reinforce walls made from hollow concrete blocks.

Cement plaster is a strong base that can be used to drill and hold components together. It also prevents electrical connections from breaking.

The cement plaster can be applied both inside and outside a building.
Cement plaster is a first-line defence against weather and pollution.
Cement plaster will not deteriorate when exposed to water like gypsum does.

Cons

The majority of cement plastering projects result in an uneven, rough finish. In order to achieve a smooth finish, an extra process is needed. The POP finish is used to smooth the surface of plastered wall.

The walls and ceilings that are plastered with cement require a cure time of one week submerged in water. This stage must be completed or the surface will not get stronger and crack.

Fine fissures can form as surfaces contract.

The final product of cement is a rough, greyish colour. To smooth the walls, POP (plaster-of-Paris punning) can be used. Punning is a technique that involves several thin coats of cement or plaster to achieve a smooth and flat surface.
As a result, the shrinkage of cement plaster can leave microscopic cracks on the surface to which it was applied.
The surface of the cement plaster must be moist for seven days in order to cure. This is a chemical reaction that produces strength. Cracks can appear on walls that have not been properly treated.
Mold and mildew can cause cement plaster to be a constant risk.

Gypsum plaster

This is a ready-made plaster which only needs to be rehydrated in water before being applied. The texture and colour is powdery-white. Plastering is done in varying thicknesses on wall and ceiling surfaces. A typical wall thickness can be 11 mm whereas the typical ceiling thickness is 8 mm. The material is heated to different temperatures in order to produce various types of gypsum.

Pros

In contrast to cement plaster, the gypsum does not require a punning process in order to finish. This saves both money and time.

Gypsum plaster is available in a ready-made form, unlike cement plaster. It’s much easier to make and less complicated.

It is easy to work with because it doesn’t shrink.

Making gypsum is two-step process. First, gypsum must be extracted from the rock. Then it has to be dehydrated in order to obtain powdered gypsum. Gypsum plaster can be recycled and reused.

The plaster dries quickly, so that you can start painting within 72 hours of plastering. This saves a great deal of time.

Plastering with gypsum has the added benefit of reducing heat loss and gain. This makes a home more comfortable all year round.

This material is resistant to mould and fire, so your walls and ceilings are protected for a long time.

The walls and ceilings prepared for painting after gypsum plastering are smooth and flat. This reduces the cost of POP tiling on cement-plastered surfaces.

It is easier to work with and prepare gypsum paste than cement plaster.

The growth of mould and mildew is not possible with gypsum plaster.

The shrinkage rate of plaster based on gypsum is very low.

Gypsum is an environmentally friendly option because of its versatility. Dewatering the gypsum from the earth produces the fine powder used in plaster of Paris. To create plaster of Paris, gypsum must be mixed with water. After being reduced to powder, this plaster can be used again.

The key advantage of gypsum plaster is its rapid drying time (often less than 24 hours). You should not paint the treated area until at least three full days after treatment.

Due to its poor thermal conductivity gypsum is a good material for keeping a home warm in winter and cool during the summer.

Gypsum plaster is a low-cost product that has good fire resistance.

Cons

It is only possible to apply gypsum on the interior of buildings.

This eliminates any applications such as the bathroom, basement, balcony or pool area, where moisture is likely to be present.

Further caution is required after priming and gypsum-plastering. Plaster can crack when holes are drilled in gypsum for wiring, electricals or wall hangings.

Gypsum plaster can only be applied to the interior of a structure, not the exterior.
It is not recommended to use gypsum plaster in areas that are moist, such as bathrooms, kitchens and patios.
The aesthetics of gypsum plaster are far superior to cement plaster. On interior walls and roofs, gypsum is preferred. Cement plaster should be used for external walls and roofs.

Which one is better?

Cement plaster is the best exterior finish. Gypsum is used for interior plastering due to its quick drying time and ease of preparation.

Gypsum plaster has many advantages beyond the ones already listed. The gypsum plaster is cheaper and faster than cement because it does not need to be cured with water. Water may be expensive or hard to come by on a construction site.

Gypsum plaster also dries very quickly. This allows you to begin painting immediately or performing other tasks without waiting. The walls are already smoothed out with gypsum plaster, so you don’t need to spend time or money on smoothing them.

Gypsum, a cheap and popular interior plastering material, is widely used in the construction industry.

Too much sand is used in conjunction with cement to produce a plaster that is grainy. Mixing gypsum with water can make plaster.

Another eco-friendly building material is gypsum plaster, which can be recycled and reused.

The walls of a gypsum plastered room can last for many years without shrinking or cracking. However, cement plastered rooms may start to show signs after only a couple months. Although it is stronger than concrete, it’s still not as durable.

Comparing gypsum to other plasters, it appears to be the most durable. Cement plaster, on the other hand, outlasts all other types by a considerable margin.

Conclusion

By using high-quality plaster, you can ensure that your walls will last, look good, and be protected against the elements. Plaster is primarily made of cement and gypsum.

It is important to weigh the pros and cons of each material before deciding which one is best for your home.

Plastering is also a traditional way to waterproof structures and hide unsightly studs. Plaster is an homogeneous water-based mixture of Portland cement and sand.

A crystalline, naturally occurring material, Gypsum Cement is commonly used in building.

Plaster that is made of gypsum instead of cement is better for the back as well as the wallet.

For cement plaster, two curing periods are required. The second is immediately following the first.

Gypsum does not require a drying time in between coats. This can help reduce the cost of maintenance. Cement plaster is cheaper, but it’s also thicker.

When applied to metal, gypsum can slow down the rusting. This is useful in protecting metal fittings, tubes, and other metals. Cement plaster protects the wall against humidity and pollution.

Cement, sand and water are used to make cement plaster.

For cement-plastered ceilings and walls, a week’s cure in water is required. If you fail to adhere to this, the surface may become weaker and crack.

Before painting, smooth the walls with POP punning.

Preparing gypsum is easier and faster than using cement plaster. Gypsum is a great way to insulate your home and make it more comfortable all year round. The aesthetic appeal of gypsum plaster over cement plaster is much greater.

This alternative to cement plaster is a time- and money-saver.

Because of its high-quality finish, gypsum wall plaster doesn’t require any additional smoothing.