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What Is Plaster Made Of?

Plaster is one of the most commonly used materials when it comes to building construction. It’s a crucial component that’s incorporated in coating walls, ceilings as well as partitions and it hardens on drying. Plastering is one of the most ancient building materials which has taken over mud to plaster reed or sapling huts so as to serve as a protection against the elements. Here, we’re going to take a look at the multiple compositions of plaster. These components are very important due to the fact that they form a protective coating on whatever they are used on. They work to protect surfaces such as ceiling and underlying walls from scratches or any form of damage.

Plaster comprises a few materials which includes gypsum, lime or cement and all operates in a similar way. Gypsum is made of calcium sulfate dihydrate and it’s the main component of main forms of plaster, sidewalk chalk, blackboard, drywall and more. Meanwhile, lime plaster is made up of sand, water and lime ( mostly non hydraulic hydrated lime). And lastly, cement which is a mix of suitable plaster, portland cement, sand as well as water.

The plaster is usually produced as a dry powder which is mixed thoroughly with water to create a stiff but also a paste that’s workable immediately before it’s applied to the wall or ceiling.

It’s quite easy to confuse a drywall with a plaster but there are some differences. Not only is plaster a much older style of wall construction than dry wall, but it’s also a lot more expensive than installing a drywall. Plaster walls are also able to provide you with a more durable finish when compared to a drywall and it makes for a better quality finish.

Artex is a water based surface coating which is used to decorate both ceilings and walls with a textured finish. Back in the 1970’s, artex happens to be very popular when the swirling or spiky effects it creates  were considered to be the best of fashion when it comes to interior designs. However, in today’s world, an artex ceiling is not only considered outdated but also a pain to clean and repair.

If you have an artex ceiling in your residential property and looking for a way to get it off, then you’ve come to the right place. In this post, we’re going to show you how its done without much stress.

To get started you’d need to get the following tools and material which includes: safety goggles, dust mask and rubber gloves, plastic sheeting, canvas drop cloth ( carpet) or rosin paper (hard floor) and step ladder

Prepare the room. Start this by moving all furniture out of the room or stack the furniture at the centre of the room and cover using plastic sheets. Once done, cover all non-removable items with plastic sheets and lay down a canvas drop cloth for carpet floors and rosin paper for hard floors

• Put on your safety gear
• Use a utility knife or joint knife to slowly chip away at the texture and create a smooth surface.
• Mix joint compound in a bucket as per the instructions on the package
• Skim the surface with a thin layer of joint compound to smooth it out using a taping knife, then leave to dry overnight before you proceed
• Lightly sand the surface smooth with the help of a 220-grit sanding block
• Use a damp cloth to wipe the surface clean prior to painting.

Can You Plaster Over WallPaper?

If you have wallpaper installed on your wall surface and you’re considering plastering the wall, when you put into consideration the stress involved in removing a wallpaper you may want to consider plastering directly over the wallpaper. This is quite understandable as removing a wallpaper can be quite time consuming and tedious, but plastering directly over wallpaper is a mistake that should never be made. Plastering over wallpaper is in no way a viable option due to the fact that it can only turn out disastrous after a couple of weeks or even days in some cases as the plaster will crack and crumble. As a result, you’ll have to firstly scrape off the wallpaper in order to assist the plaster get to be firmly secured to the wall behind.

When you plaster over a wallpaper, this will make the wallpaper wet and it’ll absorb the moisture. And once the plaster does not have moisture, the only result is for it to crack and start to crumble. Hence, plaster and wallpaper is never a good combination.

Asides from cracking and crumbling, anther issue is that the wallpaper will bubble. You can actually key the wallpaper with the help of a knife and it might look secured for some time, however it’ll eventually crumble and you’d have to scrape off the plaster complete to start all over again. The wallpaper will bubble as the plaster can’t be keyed into a wallpaper and the wallpaper will only work as a barrier between the plaster and the wall.

Overall, plaster always needs to slowly dry off as well as a good and proper surface to grip to. No matter the amount of PVA mix you spread on the wallpaper, it will always remain a barrier. So you’d have to remove the wallpaper completely to get a great result.

Can You Plaster Over Tiles?

Yes, it’s absolutely possible to plaster over tiles but just because is possible doesn’t mean you should. Plastering over tiles is an option but it’s not recommended by experts due to several reasons. A good example is the fact that a tiled environment is in no way a suitable environment that can serve as a good bonding surface for a plaster. For the success of a plastering project, there’s the need for the surface to be able to bond to the PVA base coat. Due to fact that most tiles are slippery in nature and also lack of the ability to be able to absorb moisture, the PVA base coat layer will not be able to bond to the tiled surface, which will ultimately make for a weak surface upon the application of the plaster. Consequently, the plaster will easily flake and fall from the wall.

The inability to drill into the tiled wall surface after plastering is one of the major disadvantages that also arises when you decide to plaster over tiled surfaces. Most tiled surfaces are found in kitchens and bathrooms which are going to need appliances such as sinks, lavatories, kitchen counters and lots more. These appliances are designed to be installed on solid surfaces which would not be an easy task to carry out on tiles knowing there would definitely be great cracks or damages.

The best tip you’ll get if you’re considering to plaster on a tiled surface, is that detaching tiles from a surface can easily be done with a hammer and chisel, and that would save you a host of problems later in the future. However, if you still wish to plaster on your tiled walls, then you best bet would be to get a Blue Grit bonding agent. It works better than PVA and only needs one coat.

Cutting a plasterboard is a relatively simple process requiring only some basic tools. Unfortunately, the lack of knowledge serves as big deterrent for many people who wishes to put it to good use. Plasterboard can actually be sawn using an ordinary timber saw that’s fine-toothed to get a cleaner edge. However, the basic tools you may also need includes a sharp knife (Stanley Knife), pencil, a fine sandpaper, a straight edge and measurement tape as well as a wall board saw. Let’s have a look at the cutting process!

✓ Firstly, you need to put the plasterboard sheet flat on a firm surface.

✓ Use the tape measurement to measure the cut you wish to make.

✓ With the help of a pencil, simply mark out the part you wish to cut on the plasterboard’s front side.

✓ Once marked, place a spirited level over the marked spot on the plasterboard sheet you want to cut.

✓ Cut a shallow mark into the plasterboard sheet using the Stanley Knife to cut along the edge.

✓ The cut should be slow and gradual to ensure you do not wander off the edge of the marked area.

✓ Once the shallow cut has been made, turn the plasterboard sheet on its edge and deliver a quick and sharp push towards the plasterboard’s back and on one side of the cut.

✓ Place the plasterboard sheet backing against a flat surface ensuring the line of the cut is over an edge. Once done, give a quick and sharp push towards the back of the plasterboard sheet and on the part of the board is reaches beyond the edge.

✓ Using a fine sandpaper, remove all forms of paper burrs.

The process of cutting plasterboard requires a lot of practice. If you lack the training and experience, the cutting process is best left to a proficient professional who can guarantee the best results the first time and save you some additional costs due to potential damages.

Installing a plasterboard to a ceiling is not the easiest of tasks, and even though it can be done by one person, it’s usually a lot easier when done by two people. If you’re an experienced DIYer, this task becomes a lot easier to undertake, with both confidence and patience needed to ensure a successful outcome. If you lack these essential attributes, we’d strongly recommend you call in a reliable professional who can guarantee the best results for help. In this guide, we’re going to take you through the processes involved to plasterboard your ceiling. Let’s take a look!

✓ Take a measurement of your ceiling. Knowing the length and width of your room is crucial here. You have nothing to worry about if it’s not a perfect square as that’ll only mean more cutting.

✓ Make the necessary plasterboard cuts. Cut the plasterboard sheet with a utility knife in accordance to ceiling space measured.

✓ Remove existing plaster. Once done, examine the trusses and beams to ensure they’re still in a great condition before you proceed. Also, make sure there’s no loose plaster that can compromise your new installation.

✓ Apply construction adhesive. For a better fit, you’d have to apply adhesive along the beams while also avoiding the edges as this could affect your screw placement.

✓ Start in a level corner. You have to start the installation from the most level corner.

✓ Work along the outside edges. Secure it using a screw along the outside edge. This will make your plasterboard held to your ceiling perfectly. It won’t bend or break as your proceed with the installation.

✓ Complete the installation. Install the plasterboard on your entire ceiling and complete the installation by taping the seams and plastering for a smooth surface.

How To Plaster A Ceiling

Generally, plastering is a very tricky and time consuming job which usually require lots of efforts and practice to get right - with that in mind it gets even a lot trickier when it comes to ceiling plastering.

However, when you’re able to acquire the right know-how as well as tools, ceiling plastering can be completed by any confident DIYer enthusiast without the need to call in a professional. However, if you lack the needed confidence to pull off this task, then we’d recommend you get in touch with a trustworthy professional who can guarantee the best results for help. In this guide, we’ll take you through the ceiling plastering process.

You’ll need the following materials to get started: plaster, mixing bucket and paddle, plasterer’s float, plasterer’s towel, bucket trowel, protective gear, bucket of clean water and wide brush.

✓ Prepare the area. When it comes to plastering a ceiling it’s almost unavoidable to leave a mess around and no matter how you do it, your plaster will drop on the floor. Therefore you have put drop sheets on the floor, cover the furniture and put thing you don’t want to get dirty out of the way.

✓ Prepare the ceiling to be plastered. Sand down the uneven patches on the ceiling. Once done, wash the ceiling with a sponge and warm soapy water while also removing all cobwebs as well. Leave the surface to dry once completed.

✓ Mix the plaster or buy a premix plaster. To mix the plaster, simply use equal parts of plaster and water for mixing the plaster,

✓ Plaster the ceiling. Apply a little quantity of plaster to the edge of your trowel and try to spread it in rows to do the job without much hassle. Ensure that the thickness of the coat is thin and even throughout the application. The rough edge of the trowel should be used for the spreading as it’ll help you create scrapes or scratches in the plaster.

✓ Sand the surface

Artexing a ceiling can be a tricky job, but whether you’re considering hiring a professional or DIY, it’s helpful to know how it’s done.

Artex is available either in a paste or powder form. The paste is ideal if you’re making small repairs or additions to an existing ceiling. But, if you have a whole ceiling to cover, the powder is more cost effective. When you’re ready to get started, you’ll need to mix the powder up with cold water according to the instructions.

It’s possible to artex over plaster, plasterboard or paint. If you have a plasterboard surface, you should tape and fill any joints or cracks before you begin. Plaster and plasterboard both require a coat of sealant or primer first. You can usually artex straight over paint, but any gloss paint should be sanded down, and any dark paints covered with a layer of white.

Artexing can get quite messy, so make sure you empty the room you’re working in as much as possible, lay down sheets and wear protective clothing and glasses. You might want to practice on a piece of board before you start on the ceiling.

Start by using a brush or roller to cover a 500 square cm area with a generous layer of artex. Then use a brush, comb or roller to create your chosen texture. Every time you do a new section of ceiling, try to blend it with the other sections you’ve done. Don’t be tempted to cover the whole ceiling before you start adding texture – the artex will dry too quickly for you to do it all in time.

Artex usually needs 12-24 hours in a well-ventilated space to dry completely.