Which cement is best for plastering? OPC 43 is the best cement for plastering both exterior and interior walls of low residential buildings and OPC 53 is best for plastering high rise buildings. OPC is available in 3 grades in the market, OPC 33, OPC 43, and OPC 53.
- 1 What type of cement is plaster?
- 2 Can I use UltraTech cement for plastering?
- 3 Which cement is costly OPC or PPC?
- 4 Why is plaster 2 coats?
- 5 Is PPC waterproof?
- 6 Is plaster same as cement?
- 7 Is gypsum cement a plaster?
What type of cement is plaster?
Skip to content Home / blog / Everything You Need to Know about Cement Plaster The task of plastering your home might seem like an unnecessary step, in an already lengthy process of getting a home ready. However, it’s needed to be done because it helps to provide the perfect finish for your wall. Cement plastering your home hides all cragged and uneven surfaces of the walls.
A smooth and clean surface awaits after a round of cement plastering. Cement plaster is used to plaster the interior as well as the exterior walls of the house. The best quality of cement plastering is needed in order to do a great job. Cement plaster is a mixture of water, fine aggregates and Portland cement.
Cement and sand are mixed in different amounts to obtain the cement plaster. For interior walls, a single coat of plaster is usually enough for a nice surface. Many coats are used, depending on the thickness of plaster and the nature of the surface. The recommended thickness of individual coats of plaster follows in the table below –
|Coat of Cement Plaster||Thickness|
|Single coat plaster||10 to 15 mm|
|Under coat for Two coat plaster||10 to 12 mm|
|Finishing coat for Two coat plaster||3 to 8 mm|
|Base coat for Three coat plaster||10 to 15 mm|
|Second coat for Three coat plaster||3 to 8 mm|
|Finishing coat for Three coat plaster||3 to 5 mm|
Different varieties of plaster exist, such as
Lime Plaster: Consists of a lime mixture, with a sand:lime ratio of 1:3. Used for undercoat and finished surfaces. Cement Plaster: Cement and sand are used in the ratio of 1:3 and mixed with water. Gypsum Plaster: Fresh variety of plaster with reduced chances of shrinkage and cracks.
Types of finishes provided by plasterers are as follows –
Smooth cast finish Rough cast finish Sand faced finish Pebbledash Finish Scraped Finish
In conclusion, always go for a layer of plastering for a smooth and uneven home! Take a look at Maha Cement’s catalog of products to choose what suits you best.
Is PPC cement good for plastering?
2.Portland Pozzolana Cement (PPC): – PPC cement is generally used for plastering, brick masonry and waterproofing works. PPC has a lower heat of hydration and it is prone to fewer cracks compared to OPC. PPC has lower strength than OPC but PPC provides better workability and finishing than OPC. PPC provides greater resistance to chemicals.
Can I use UltraTech cement for plastering?
UltraTech Readiplast is perfect for manual plastering on both internal and external walls, including brick, block, concrete and hollow walls. UltraTech Super Stucco is a plastering agent that is perfect for surface finishing and its biggest advantage is that it requires no curing.
Why is OPC cement used?
OPC is a general purpose Portland cement suitable for all uses where the special properties of other types are not required. It is used where cement or concrete is not subject to specific exposures, such as sulfate attack from soil or water, or to an objectionable temperature rise due to heat generated by hydration.
Which cement is costly OPC or PPC?
OPC and PPC cement Cost in India The cost of the products of PPC Cement varies between Rs 340 to Rs 370 for every bag from Jun 2021 to May 2022. The OPC cost is approximately 300 rupees for every bag and it is quite expensive in comparison to OPC. In PPC, the expensive clinker is used instead of pozzolanic material like fly ash. Finally, the price of PPC is less than that of OPC.
Why is plaster 2 coats?
CGN Screwfix Select – First coat roughs it out, and also helps give more even suction. Thinner 2nd coat to get the imperfections on the first. This is a tried and tested method. If you’re learning plastering, then stick with 2 coats and perfect the method.it works.
- One coat and spongeing is fine in certain situations, but your timing has to be spot on.
- Get the wrong timing and all you’ll do is pull all the grit in the plaster to the surface.
- As I found via a 1 coat plasterer – to my cost.
- Walls were not flat and a bit wavy.
- Net result plaster in places way to thin so fractured and lifted as soon as a mist coat went one.
There seems to be a lot about who just put the minimum on and one coat. John – I have always ever done 1 coat. After that my shoulder goes & I’m knackered. But I’m only DIY, then wallpaper or lining paper, does a good job. Never ever had any plaster lift or crack.
Is PPC waterproof?
Is polyester powder coating waterproof?
- Polyester powder coating (PPC) is an increasingly popular alternative to wet paint finishes, and one of its basic qualities is that it is waterproof.
- However, this is far from the only advantage powder coating enjoys over traditional paint materials.
- PPC combines durability with an excellent finish, and is both an economical and environmentally-friendly answer to coating a range of substrates.
Is plaster same as cement?
What is Plaster? – Plaster is a construction material; people use it for the protective or decorative coating of walls and ceilings, as well as for the shaping and molding of decorative elements. Plastering has been around for many hundreds of years and is a familiar material to many people.
What is plaster made of?
Plaster, a pasty composition (as of lime or gypsum, water, and sand ) that hardens on drying and is used for coating walls, ceilings, and partitions. Plastering is one of the most ancient building techniques.
Is gypsum cement a plaster?
What Benefits Does Plastering Offer? – Plastering offers multiple benefits to walls and ceilings. Both external and internal plastering is essential to lend the required strength and support. Plaster serves as a protective cover on stones and bricks and extends durability to ceilings as well as walls.
- Plastered walls are also protected against climate damage including rain, heat, and humidity.
- It is also easier to repair plastered walls in case if they get damaged in any way! Plastering also helps the levelling of the surfaces, and such walls are also finish-friendly as different finishes can be applied to it to enhance its look and appeal.
Your home could also be less polluted as plastered walls tend to attract and create less dust. Different materials are used for plastering, but the most commonly used plastering materials are cement and gypsum, The answer to which material is best for your home will depend on an analysis of the advantages and disadvantages of each. Cement plaster is made by mixing cement, sand, and water, usually, the ratio of cement and sand is 1:4. The thickness of plaster depends on the surface to be plastered and could be around 12 to 20 milliliters. Sometimes, plasticizers are also mixed in the plaster to protect walls from parasites.
- The best thing about cement plaster is that it can be used both for external as well as internal plastering.
- Cement plaster is the best bet when it comes to plastering exterior walls because it is moisture-resistant and will protect the wall against climate changes as well as environmental pollution.
Moreover the durability factor in cement plaster makes it the ideal choice for internal plastering too. Cement strengthens the walls, especially the hollow-concrete blocks. Also, when it comes to electrical fittings and wiring, cement plaster will not develop cracks and offer a sturdy base for drilling and holding it together.
Cons: The surface after cement plastering tends to look uneven and rough. Hence, it will require an additional process to achieve a smooth finish. Often, POP is applied to the plastered walls to give it a smooth finish. Cement-plastered walls and ceilings require water curing for about a week. Without the process, the surface will not gain strength and may soon develop cracks.
Over time, surfaces may even shrink causing hairline cracks. It is a ready-made plaster and is used after mixing it with water. It is white in colour and powder in form. The thickness varies for wall and ceiling plastering, for the wall it could be around 11 millimeters while for the ceiling, the thickness is just about 8 millimeters.
Gypsum plaster is also heated at specific temperatures to get different types of plasters. Pros: Unlike cement plaster, gypsum plaster does not require punning or any special process to achieve smoothness on the surface. Thus, it saves costs and time. Cement plaster has to be prepared manually but gypsum plaster is available in ready form.
Hence, preparing it is much easier and convenient. Gypsum plaster does not expand or contract with time; hence shrinkage does not happen. Gypsum plaster is extracted from gypsum rock and later dehydrated to obtain the powder form. The biggest advantage is that gypsum plaster can be recycled and reused many times.
- It saves a lot of time because it dries very fast and you can start your painting work within 72 hours of plastering.
- A great benefit of gypsum-plastered walls is that its thermal conductivity is low and hence is adept at keeping your home cool during summers and warm during winters.
- The high resistant nature to fire and mould protects your walls and ceilings for a long time.
- The main disadvantage of gypsum plastering is that it is suitable only for interior plastering.
- It is not moisture-resistant and hence unsuitable for damp areas such as bathrooms, basements, balconies or kitchens.
One needs to be careful when working with gypsum plaster when the plastering and painting work is completed. Being relatively soft in its property, gypsum plaster tends to break or develop cracks easily when drilling into the walls for electricals, wall hangings, wiring, etc. Both have pros and cons, but when it comes to exterior plastering, nothing beats cement plaster. For interior plastering, gypsum plaster is often preferred especially as it dries quicker and is easy to prepare and level. There are also other reasons for choosing gypsum plaster.
It saves time and cost because it does not require water curing, unlike cement plaster. Depending upon the place of construction, water may not be available at all or may be very expensive. Gypsum plaster also dries faster, so there is no waiting time required to start painting and other work. Since gypsum plastered walls have a good finish, you needn’t spend additional time and money on extra smoothening of the finishes.
Also, gypsum is often preferred by developers as part of the interior plastering as it saves cost, Cement plaster has to be prepared with the right ratio of sand and cement, any ingredient in excess and you will not be able to get the right plaster texture.
- When you use gypsum plaster, all you have to do is mix it with enough water.
- Gypsum plaster is also a green product as it can be recycled and reused.
- At times walls plastered with cement may develop cracks or shrinkage after a few months, but gypsum plaster remains fault-free for a longer time.
- It doesn’t mean it is stronger and durable than cement.
When a comparison is made, gypsum plaster seems to earn more favourable points. However, when it purely comes to durability, cement plaster is better in the long run, If you are looking for expert advice on how to get your home done up, get in touch with Hipcouch today! Get Interior Designing Cost Calculators Interior Design Tips, Guides to help you make Smart Choices for your Interiors & Decor without filling up your email inbox! : Gypsum Plaster vs Sand Cement Plaster: What Are They & Which One’s The Better Bet?