Everything You Should Know About Gypsum Plaster
For decades, most Indian builders have been using sand cement plaster to plaster their home walls. It is time to change that old habit with the gypsum plaster method.
Over the years, construction technology has evolved drastically. However, what has not changed is the application of traditional sand cement plaster for plastering on Indian home walls. From technological and environmental perspectives, the conventional method of using cement plaster is highly ineffective because it mainly leads to environmental stress other than being a time-consuming and messy process.
For instance, sand cement plaster demands high water usage and river sand, a scarce natural resource. Given that this process of applying sand cement plaster is mainly inefficient, most Indian builders are slowly moving towards using gypsum plaster for interior wall plastering. From gypsum plaster price to benefits and even gypsum plaster disadvantages. Here is everything about gypsum plaster for walls that you must know.
What Is Gypsum Plaster?
Gypsum plaster is a soft sulfate mineral derived from calcium sulfate dihydrate. Unlike sand-cement plaster, which uses a two-step curing process (before and after), gypsum plaster for walls can be directly applied to the bricks or hollow blocks. Converting plaster of Paris and gypsum into gypsum plaster involves mixing the POP powder with water. The technical specification of gypsum plaster includes a set time of 25-30 minutes and comprehensive strength of 60-70 kg/cm2.
Moreover, the gypsum plasterboard is usually 12mm thick and can offer a coverage area of 21 square feet per gypsum plaster 25kg bag. The shelf life of unapplied gypsum powder is around four months. Likewise, applied gypsum plastering can last for a long time. Giza pyramids are well-preserved monuments that have also used gypsum plastering and have endured extreme environmental exposure.
Gypsum and Plaster of Paris
People often get confused about the multiple options available, from gypsum to plaster of paris. On the contrary, gypsum and plaster of paris are not the same. The primary differentiator is their compositions. While gypsum is composed of calcium sulfate dihydrate, calcium sulfate hemihydrates make the chemical composition for POP powder.
More precisely, when the dry plaster of paris or POP powder hardens due to mixing it in water. This material is mainly called gypsum plaster and can be easily applied to any solid surface. Another confusion is that people often think that gypsum plaster is pink. However, gypsum plaster is white. It is the UK plaster or, sometimes, POP plaster that is pink owing to impurities in the powder.
Gypsum Plaster vs Cement Plaster
There are considerable differences between gypsum plaster and cement plaster, from their unique application processes to final plastering outcomes. Here is a table highlighting the gypsum plaster vs cement plaster to help you understand which plastering technique is better.
|GYPSUM PLASTER VS CEMENT PLASTER|
|Gypsum Plaster||Cement Plaster|
|Gypsum plaster is a lightweight material that is composed of CasS04:2H20.||Cement plaster is made of river sand, cement, and water.|
|It is best to be used on the ceiling and interior walls. Not preferred for walls that are exposed to water, such as outdoors and toilets, kitchen, etc.||It is suitable for applications to your walls’ indoor and outdoor surfaces.|
|Appropriate for both smooth as well as rough surfaces.||It cannot be used on smooth surfaces.|
|No curing is required.||Requires both pre-curing and post-curing processes.|
|Considered a green building product.||Not considered good from an environmental standpoint.|
|Gypsum plaster price is high, but even the application time costs less. Gypsum plaster 25 kg price is somewhat costlier than the sand-cement plastering method used in India.||Using cement plaster can be highly time-ineffective.|
So, who wins the gypsum plaster vs cement plaster battle?
In summary, gypsum plaster is cost-and-time-effective when plastering interior walls, poses lesser environmental hazards and provides a better and smoother finish. But in other instances, applying cement plaster would be a better alternative.
Advantages and Disadvantages of Gypsum Plaster
The advantages of gypsum plaster are multiple. To begin with, the application process of gypsum plaster is relatively less time-consuming. Moreover, if you reside in areas where land is scarce, the gypsum plaster of 25kg price will cost you comparatively less than sand-cement plaster. Some other advantages include:
- Ease of application of gypsum plaster.
- No curing is required.
- Faster setting time and no shrinkage cracks as compared to cement plaster.
- If the plastering is done properly, one can expect a smooth and crack-less finish.
However, sometimes, you can also experience cracking due to the following reasons: shrinkage of interior walls, excessive thick coats of gypsum plaster, imperfect water to gypsum water ratio, or deficient background preparation.
While gypsum plaster offers multiple benefits, here are some of the gypsum plaster disadvantages that you must consider before deciding on which option to choose. Let us take a look at some of the common gypsum plaster disadvantages:
- Gypsum plaster is not regarded as appropriate for outer walls or walls susceptible to high water contact—for example, bathrooms or kitchens.
- Gypsum plaster can be a costlier affair, especially in areas where natural sand is unavailable.
- Gypsum plaster does not perform well with water. Thus, it is not for the majority of the part not 100% waterproof.
Where Can I Find Gypsum Plaster Near Me?
If you are thinking about where you can find gypsum plaster and how much a gypsum plaster bag price is, look no further. Magicrete is the perfect place for all of your construction-related concerns. Our gypsum plaster 25kg price is much more affordable than others.
Uses and Applications of Gypsum Plaster
Gypsum plaster is mainly used for plastering the interior walls and partitions. However, gypsum plaster also serves other purposes. For example, gypsum plaster is also used in sculptures and moulds.
Gypsum plaster is a perfect solution to match the demands of today’s construction industry. Gypsum plaster comes with a lot of benefits. This plastering process offers a smooth finishing touch to your interior home walls, which is hard to achieve using conventional sand cement plastering.
However, given that gypsum plaster can cost you a bit more and is not a good performer against water, cement plastering can take the upper hand in some cases. Therefore, depending on the wall plastering you aim for, you can choose gypsum plaster or cement plaster.