Alabaster is a building gypsum, a material without the use of which today it is impossible to imagine finishing work or renovation of premises. The word alabaster is of ancient Egyptian origin. Already in those days it was used in construction and architecture. In Egyptian pyramids and other religious buildings many objects made of alabaster are found.
Features of alabaster:
If alabaster is cut into thin sheets, then at a certain temperature it is transparent. In the Middle Ages, in this form it was used for windows, instead of glass. Even today, large sheets of alabaster are used for church windows. Thus, in 2002, the Los Angeles Cathedral was consecrated, with large thin sheets of alabaster inserted into the windows. To make it transparent, the cathedral windows are equipped with a special cooling system.
Usually alabaster is white, but there is a unique deposit of green alabaster in Mexico. In addition to green alabaster, three deposits of black alabaster have been found in nature in Italy, China and the USA.
Artificial building alabaster is produced from natural gypsum in special apparatus when heated. A coarser powder with impurities is alabaster, also known as building gypsum. Pure, finely ground powder is called medical plaster.
Construction alabaster is used as a binder for plastering walls and ceilings, making cloisonne panels, as well as gypsum particle boards and gypsum fiber boards. As a finishing material, alabaster has no equal among the numerous analogues that are filled today construction market. With the help of alabaster, any problem areas on the walls and ceiling.
Made from construction alabaster ventilation ducts and dry sheets of plaster. Lightweight, fireproof ventilation ducts and dropped ceilings made of alabaster make up an important, irreplaceable in quality, technical filling of multi-story buildings.
A solution of alabaster in water hardens very quickly. Alabaster is indispensable for electrical installation work; it is used to rub grooves and secure socket outlets in electrical boxes.
Alabaster is indispensable for interior decoration in the form of stucco. Various parts and elements of fairly heavy weight are made from it, better than alabaster nothing can fix them. Alabaster is used to make beautiful cornices that decorate any interior. Moldings are made from this material. This is the name for stucco molding in the form of a convex plank. Moldings are used in expensive, unusual interiors. Alabaster is used to make pilasters and columns - details of an elegant interior.
The role of alabaster in restoration work is great. Restore vintage interiors Quality is only possible when using natural materials. Therefore, in the restoration of architectural structures, temples, palaces with precious stucco, a huge amount of alabaster is used.
Alabaster is indispensable in art, since the times Ancient Greece the sculptures are made of alabaster. When restoring sculptures, an alabaster solution is used, prepared according to ancient methods. It is easy to apply patterns on polished alabaster; just drop water on it.
Alabaster - fire resistant construction material, it prevents fire. Alabaster is the ideal ecological building material. Since alabaster has no chemical additives, it is not capable of harming health. Alabaster has an amazing ability to breathe. It absorbs water from humid air and releases it back when the room becomes very dry.
The disadvantage of alabaster is its demanding storage conditions; it easily becomes damp. It should be stored in dry rooms high above the floor. Shelf life is short.
Alabaster solution is made by adding water to alabaster, the amount depends on the construction task, for example, for electrical work you need to make a thick solution. Since alabaster solution hardens very quickly, it is always made in small quantities. The old finishing masters have a construction trick that prolongs liquid state alabaster solution. They add to the solution wallpaper glue and tightly close the vessel with polyethylene.
Plasterboard is made from alabaster, which is used for suspended ceilings and prefabricated structures. Drywall is a layer of plaster between cardboard surfaces. They built from this material back in Ancient Rome.
Drywall replaces many building materials and is easy to install. Decorates well various pipes and electrical wiring. Arches are made from plasterboard. The main disadvantage of drywall is its fragility.
Alabaster is quite widely used in construction as part of dry mixtures. Nowadays, self-leveling floors are fashionable; they are also made using alabaster.
The range of uses of alabaster in construction, interior decoration, and interior decoration is unusually wide. Methods of application have remained unchanged since ancient times. All artificial building materials invented during this time cannot replace natural alabaster.
Alabaster application video:
It is difficult to imagine a renovation without using this material. Alabaster, whose use is very wide, is one of the most common materials used in repair, construction, decorative design interior It is sold in retail stores in powder form. white, diluted with water before use. It is distinguished from other similar materials by its rapid hardening.
Concept, types, properties
It is called building alabaster or gypsum, consisting of a dry mixture of components. Gypsum is considered the main substance among them. The elasticity of alabaster is provided by polymer components. This material is classified as non-flammable, environmentally friendly natural materials. It has excellent soundproofing properties and water resistance.
Advantages and disadvantages
Before you start working with a mixture prepared from alabaster powder, you should study the characteristics of the material used. The powder is inexpensive and is in deserved demand among buyers for its excellent technological performance. In general, construction alabaster has the following properties:
- dries quickly upon contact with water (sets in 5 minutes, completely hardens in 30 minutes), which makes the material indispensable when quick and high-quality surface finishing is needed;
- preventing the appearance of cracks;
- an even film is formed on the treated surface;
- good fire-resistant properties (difficult to ignite);
- high sound insulation.
This finishing material It is light in weight and does not shrink during the hardening process. If the question arises as to whether alabaster is harmful to human health, then we can absolutely say that it is safe. The powder is predominantly white in color, but it also occurs in other colors: light gray, yellow, and sometimes it has greenish and pink shades.
What temperature can alabaster withstand? It can withstand exposure to significant temperatures. Resists heat up to 700° without destruction. The destructive consequences of interaction with open fire will be visible after 6 hours.
Negative characteristics of the material include its insufficient strength and inability to withstand heavy loads. Due to the fact that alabaster can absorb water when hardening, it should not be used in special applications. wet areas. The frozen alabaster mixture does not like it when the air around is dry and hot, then the material will simply crumble due to loss of moisture reserves and a decrease in viscosity. Such disadvantages are eliminated by introducing various additives into the alabaster solution.
Features of the material
When working, you must remember about the characteristics inherent in this substance. In addition to the rapid hardening characteristic of it, it is capable of increasing in volume. Distinctive feature of this material also lies in the fact that it does not stick to the surface of rubber products. It is even recommended to prepare a solution from it in a regular rubber ball. The material is stored in a dry place with humidity not exceeding 60%.
Currently Based on the rate of hardening, the material is divided into the following types:
- with rapid hardening;
- with normal hardening speed;
- with slow hardening.
In the first case, the mixture used will begin to set a few minutes after its preparation, and after a quarter of an hour it will completely harden. The solution of the second type will begin to harden after preparation after 7 minutes, and will finally harden in 35 minutes. For the latter type of mixture, hardening begins after 20 minutes. from the moment of preparation, and the solution will finally harden after 40 minutes.
The difference between alabaster and plaster
Often people who do not have the necessary information Both alabaster and gypsum are considered the same material. In fact, alabaster is obtained from gypsum after its thorough processing. First, the gypsum is crushed, converted into powder, then heated until a temperature of 180° is reached. As a result of all operations, alabaster is obtained.
A little about plaster
This natural material, environmentally friendly, odorless. Unlike alabaster, it has a wider range of uses. Its frequent use in construction is due to its good viscosity, fast, durable drying, and significant resistance to fire.
WITH positive side gypsum is characterized by the fact that it is able to absorb excess moisture in the room; and if there is a lack of moisture, it can give it back. Such unique property other building materials do not have, which allows gypsum to become widespread in internal works for finishing of residential (industrial) premises.
Differences
Visually, the difference between these two substances may not be detectable. You need to look for her soon in the properties of each material, and not in a simple inspection of the result of their application. Gypsum, unlike alabaster, has greater versatility in use. Gypsum is used in various fields human activity. Among them is medicine, where it is used in the making of casts.
Such plaster casts in dental clinics needed in the manufacture of dentures. Casts have high quality. This contributes precise work, as a result of which a person is comfortable with artificial teeth. Making dental impressions is just one of the uses of gypsum in the medical field, where it has been used almost since the discovery of the material.
For example, it is well known that when an arm (leg) is broken apply a special bandage (plaster). In addition to medicine, gypsum is used in architecture and art. Gypsum was used to create various bas-reliefs, for internal and exterior decoration classical buildings stucco. In sculptures and applied arts, gypsum-based decorations are also popular.
The alabaster mixture dries and hardens faster than plaster. This property prevents the use of alabaster in the field of medicine and art. Often even with construction work components are added to the alabaster solution to prevent it from hardening. There are no such problems when working with gypsum. Gypsum, unlike alabaster, is softer.
Application of alabaster
It is used as a finishing material in construction:
- Production that produces dry plaster, plasterboard panels, stucco molding, and other products cannot do without it.
- It is used to seal cracks, holes, chips, and seams on the walls and ceilings of rooms.
- The use of alabaster helps to fix electrical cables inside special grooves.
- It is used in the production of slopes, beacons, puttying walls and other fences.
Often, due to the rapid hardening, alabaster is added to cement mortar in order to slow down the hardening process of the mortar. On final stage the surface treated with alabaster mortar is often polished, ground or scraped. It should be remembered that no contact between the alabaster product and water should be allowed, otherwise any polish will become dull.
Selecting containers for preparing the mixture
Since the mixture obtained from alabaster powder tends to harden quickly, diluting this material with water somewhat different from other similar solutions. If you prepare the mixture in a bucket or bowl, then when the alabaster hardens in it, the container will have to be constantly cleaned of it, which is problematic. In this case, experienced builders try to dilute a small amount of alabaster using rubber containers.
The remains of alabaster can be easily removed from there by squeezing an elastic thing. This convenient device it can be made from a simple chamber, half a rubber ball. When breeding large quantities mixtures at one time, inner surface To protect it, containers are covered with plastic film, the edges of which are securely fastened.
Preparation of working solution
Anyone working with alabaster should know how to breed it. The process of preparing a working solution of alabaster is reminiscent of the procedure for diluting dry glue before gluing wallpaper. To do this, take the components at the rate of: for 1 kg of alabaster - 0.5 liters of water. The selected container is filled with water, into which dry alabaster is carefully poured. The components are mixed, preventing the formation of lumps, until the consistency of sour cream is achieved. After about 2 min. the mixture is ready.
Freshly prepared alabaster solution is used immediately after preparation. If it dries out, it will be unusable. In order to use the solution longer, you need to know what to add to the alabaster to make it harden more slowly. Adding glue (carpentry, wallpaper) to the solution in an amount of 2% of the total weight of the mixture and a lime solution will help delay the drying process of the material.
To ensure that the result of the work meets the requirements, you need to know how to dilute construction alabaster in relation to a certain type of work. Water resistance of alabaster product improved by applying paint or a special moisture-proof layer to its surface. To apply the prepared alabaster mixture, use a spatula or trowel. Upon completion of work, the tools used are thoroughly washed.
Alabaster solution for various types of work, done correctly
To obtain good result work, certain proportions should be observed when preparing the mixture. Otherwise, the mixture will either harden quickly or not dry at all. To avoid such situations, you must adhere to a proven recipe.
First, 0.5 liters of water is poured into a rubber container, and 1 kg of alabaster from a bag is gradually poured into it. The bag with the material is held with one hand, and the mixture is mixed with the other. When mixing, no powder should remain on the walls of the container. The result will be a homogeneous mass without lumps. It should not be stirred for too long to avoid loss of strength.
After 5 min. After cooking, the mass will thicken. It will take 20 to 30 minutes for the solution to completely harden. Taking this fact into account, you should take the amount of alabaster for kneading that can be used in 5, maximum 7 minutes. work performed. The prepared solution is used for covering formed cracks, fixing wires, and other minor work.
Applied to plaster used for walls requires a slightly different preparation of the mixture. To begin with, the type of work to be done is determined. It is best to level the outer walls of buildings using cement mortar. Internal walls covered with a mixture of lime. If you use alabaster for plaster, using it with lime is suitable for eliminating all kinds of errors on the walls: cracks, cracks.
A dry lime mixture is first prepared, to which water and alabaster substance are then added. Instead of containers, you can use the remainder of a rubber tire (another container) more than 10 cm in height. First, a certain amount of sand (1 part) is poured into it, then lime (5 parts). Next, use a spatula (construction mixer) to mix these substances until smooth.
Then add water, stirring the mixture until it reaches the consistency of rich sour cream. After this, they begin to make an alabaster “dough”, 1 part of which should account for 4 parts of the lime mixture. Next, the alabaster “dough” is poured into a container with lime. All components are mixed briefly but thoroughly. Having prepared the substance, they proceed directly to the construction work itself.
The first step is to “spray” the surface, when a small amount of the mixture is taken with a construction shovel, it is thrown onto the surface of the wall with a sharp movement of the hand. Do this carefully so that the material does not splash the entire wall.
The next step is to apply primer using a wide spatula. The soil layer is leveled. A thin layer of plaster is placed on top. They cover the soil until it dries, using a roller (brush). When the plaster itself has dried, it is processed counterclockwise with a construction plastic trowel, using circular movements of the hand.
Having an idea of what alabaster is, its use when performing certain construction and repair work, can be obtained at high results from its use. You only need to know approximately how much alabaster powder is needed to complete a given amount of work, in addition, you should follow the recommended proportions when diluting it.
The name alabaster is applicable to two types of materials. This is the name given to building gypsum (calcium diacquasulfate), as well as calcite (calcium carbonate). These materials are very different from each other, but historically the same name was applied to them. If we consider the gypsum composition, it is softer. Its hardness on the Mohs scale is 2. It can easily be scratched with a fingernail. Calcite is a harder mineral and is rated 3 on the Mohs scale. This material can only be scratched metal objects. These substances differ in chemical properties. Gypsum mineral is inert to hydrochloric acid, while calcium carbonate reacts violently with it. Nowadays, when mentioning alabaster, we usually mean calcium diacquasulfate, which is one of the main materials of modern construction.
Properties of building alabaster
This is a fairly ancient building material, as can be judged by the ancient products made on its basis. Their production dates back to 4 thousand BC. The substance in ready-to-use form is a white powder. It comes in a variety of shades, from yellow to pink. It is obtained as a result of heat treatment of gypsum stone. It is heated and baked, as a result of which it dries out and changes its properties. The stone processed in this way is ground into finished building alabaster.
When mixing the powder with water, it hardens in about 15 minutes, plus or minus depends on external conditions, water temperature and the size of the grinding fraction. During the chemical process of crystallization, the material releases heat and increases slightly in volume.
It is usually considered that alabaster and gypsum are the same material, but in fact this is not the case. The first is simply a cheap version of the second. Gypsum is used in a very wide range of areas, for example, construction, dentistry, traumatology and sculpture. The use of alabaster is narrowly targeted. It is intended for the construction industry only.
Alabaster is characterized by the presence of a coarse-grained fraction, which significantly speeds up the process of its setting. This helps to increase adhesion when gluing to foreign surfaces. A large faction is very valuable property, but reduces strength. In this regard, certain types of fine gypsum, for example, used in dentistry, are much stronger, which is facilitated by less porosity.
When using alabaster, sufficient hardness is ensured. Thanks to this, the products obtained from it are resistant to mechanical stress and destruction. Alabaster is characterized by rapid hardening, which is why it is necessary to work quickly when using it.
Where is alabaster used?
After mixing dry alabaster with water, a very elastic solution is obtained, significantly superior to cement mixtures. It is lightweight and can be applied in a thick layer without the risk of cracking. Although this material is not as hard as concrete, being 2 times inferior to it on the Mohs scale, it is superior in stability to low-quality cement-sand plaster mixtures.
Typically, alabaster manufacturers offer it in the form of dry plaster and putty mixtures. And the material, which is sold under the name alabaster, is often used on a smaller scale. It is usually mixed with water to level walls. Such plaster mixture sticks very well various surfaces. Besides mineral materials, such as stone, brick or concrete, it is also used on synthetic surfaces, including foam and polystyrene foam.
Alabaster provides high drying speed. Types and application. Properties and solution. Features certain advantages. In this regard, it is often used for sealing grooves left after electrical installation work or laying plumbing pipes in the walls. The alabaster mixture hardens very quickly, securely holding the communications inside the groove. With its help, it is fixed in the walls for installation and light.
Alabaster, as well as many specialized gypsum compounds, can be used to make various crafts using casting technology. The prepared solution of liquid consistency is poured into special molds, pre-lubricated with oil or technical petroleum jelly, after which it hardens. Subsequently, the solid product is removed from the mold.
This is a favorite material for busy craftsmen hand made stucco moldings. The applied alabaster mass is processed with chisels, resulting in a variety of rosettes, columns and other decorative elements stylized as antique. Since alabaster is characterized by rapid hardening, in this case they can be used various additives to slow down this process and give the master time to work out the details.
The increased elasticity of the material allows it to be used for minor repair work, for example, sealing cracks, seams and holes in walls. The composition penetrates well into narrow cavities and reliably sets, completely hiding such defects. If it overlaps thin layer, then literally after a couple of hours under favorable temperature conditions you can move on to the next stage of finishing. The base prepared in this way can be used for wallpapering.
Alabaster is also used as an adhesive material. It is used for fixing ceiling baguettes, as well as finished gypsum stucco. The material has also found its application in the creation of countertops. They are poured into molds and then polished. Special treatment with impregnating compounds makes the countertops moisture-proof and increases abrasion resistance.
Sand can be added to the composition of alabaster, which increases its weight, reduces cost and extends the time for complete setting. Although alabaster. Types and application. Properties and solution. Features and very versatile, but absolutely unsuitable for screeding floors or laying bricks. It cannot withstand significant loads, and is more used for carrying out finishing works, when it is not the strength that is important, but the decorative effect.
Benefits of alabaster
The popularity of this material in construction is due to a number of advantages that set it apart from other cement and polymer mortars. Its advantages include:
- Fire resistance.
- High elasticity.
- Accelerated strength gain.
- Increased adhesion.
- Fast drying.
- Environmental friendliness.
The initial setting of a solution of pure alabaster takes from 5 to 15 minutes. Final hardness is achieved in 2 hours. Thus, when using it, the technical pause between different stages of work is reduced many times over. Thanks to the environmentally friendly safety of alabaster, it can be used in interior design in children's rooms.
Preparation of the solution
First, water is drawn into the container, after which the powder itself is poured. Alabaster is added gradually with constant stirring. It cannot be prepared in large portions, since it dries quickly, significantly surpassing ordinary gypsum plasters. Of course, in the case of filling molds, it can be prepared in large portions.
When kneading, it is most convenient to use by setting it to, or. If the work is done manually, then after pouring the powder into the water, it is better to give it time to absorb it. After this, mixing will be much easier. This will avoid lumps. Unlike cement compositions, the alabaster-based solution cannot be further “rejuvenated” with water in order to restore its elasticity and continue to be used. After the first signs of setting, it is better to throw it away before it turns to stone right in the bucket.
If the solution is needed to seal the grooves, then you should follow the mixing ratio of 2 parts of material to 1 part of water. This is the optimal consistency, ensuring a high hardening rate. For filling molds, the best proportion is 50 to 50.
To increase the lifespan of the alabaster solution, you can use readily available additional components. For this purpose, you can add regular dry wallpaper powder at the mixing stage. It is worth noting that in this case, the bonding property and the final hardness of alabaster will be reduced. If you constantly close the container from which the solution is collected, then it will remain elastic in it a little longer.
Calcite types of alabaster
Calcium carbonate is an older finishing material, mined in the form of stone, which is processed by carving and grinding equipment. It was this mineral that first began to be called alabaster, since in ancient times its mass mining and processing was carried out in Egypt in the city of Alabastron. This mineral allows light to pass through when cut into thin sheets. Due to this, it was previously used for installation in windows instead of glass. This was especially popular in medieval churches. It is typical that when overheated, the sheets lose their transparency and do not transmit light until they cool down. This material has a ribbon pattern like marble, which is explained by its displacement in the layers of rocks.
If you have started renovations in your home and decided to do it yourself, then you will not be able to do without such an important building material as alabaster. What it is, for what purposes it is used, its advantages and disadvantages, as well as recommendations for preparing a solution based on alabaster - we will tell you about this today.
What is alabaster and its scope of application
Construction alabaster - elastic and lightweight material, so it can be easily processed
Construction alabaster is a white, fine-grained dry mixture that is used in the construction industry. At the same time, the scope of application of this material is quite large, because alabaster is used to solve construction problems, as well as in the manufacture of elements decorative finishing. Let us highlight the main types of work that are performed using alabaster:
- finishing manipulations: for example, sealing seams, holes, cracks and chips;
- electrical installation work (for fixing electrical cables in grooves for laying communications);
- puttying walls and other enclosing structures;
- production of slopes and beacons.
In the last two cases, alabaster is not recommended for use in pure form, because it hardens very quickly, which complicates the high-quality performance of these delicate works. Therefore, the mixture is often simply added to the mortar to help it set better.
Advantages and disadvantages
The great popularity of the mixture is due to its technological characteristics. The fact is that upon contact with water, alabaster instantly hardens. As a result, builders use it precisely in cases where fast and high-quality surface finishing is necessary. Construction alabaster has the following positive qualities:
- high setting speed;
- low density;
- fire resistance;
- good sound insulation.
This is interesting: Alabaster is a lightweight finishing material, so it does not shrink when it hardens. In addition, it is not harmful to health, as it is an environmentally friendly material.
Despite the rapid hardening building gypsum, it still lacks strength. The material is not able to withstand heavy loads. Moreover, even frozen solution can absorb water vapor, so alabaster is not recommended for use in rooms with high humidity. A solution based on this mixture also does not tolerate exposure to hot and dry air. In this case, the material loses moisture reserves, loses viscosity and simply crumbles.
Selecting a container for preparing mortar
In view of high speed hardening of the mixture, its dilution with water is slightly different from the preparation of other mortars. First of all, this concerns the type of container used. A bucket or bowl will not work here, because the alabaster will harden in them, and you will have to constantly remove it from the walls of the vessel. Therefore, most experienced builders prefer to grow alabaster in rubber containers and in small quantities. This allows you to easily remove the remaining substance by squeezing the elastic container. You can make such a device from an ordinary camera or an old rubber ball, cutting it in half.
If you need to dilute a large amount of alabaster at once, then you should put it inside the container plastic film and secure it well around the edges. However, before each next preparation of the solution, you will have to repeat this procedure.
In what proportions should alabaster be diluted?
It is advisable to dilute alabaster in a rubber container so that it is convenient to remove its remains
The process of mixing alabaster mortar requires strict adherence to proportions. The procedure for preparing the mixture is as follows:
- Pour 0.5 liters of water into a rubber container.
- We fill in 1 kilogram of alabaster, that is, in a ratio of 2:1. You need to add the dry mixture gradually, stirring the substance at the same time. The solution should be homogeneous. At the same time interfere with it for a long time It’s not worth it - it will lead to a loss of strength of the final material.
- After five minutes the mixture will begin to thicken. Complete hardening will occur approximately twenty minutes after kneading.
Helpful advice: Prepare only enough solution to use in five minutes.
This solution is excellent for eliminating cracks in the wall and fixing engineering communications, laid in grooves.
How to dilute for plastering walls
Lime mortar for plaster with the addition of alabaster must be prepared very quickly and in small quantities so that it doesn’t have time to freeze
First you need to decide on the type of solution, which is selected depending on the type of finishing work. So, if the outer walls of a building are being leveled, it is advisable to use a cement-based solution; indoors it is advisable to use a lime mixture. But a solution with the addition of alabaster (lime-gypsum) is ideal for eliminating all kinds of errors.
Mixing mortar for plaster begins with creating a dry mixture, which is then diluted with water with the addition of alabaster substance. As a container, you can use any container with a flat bottom and walls at least 10 cm high (box, trough, bowl or bucket). The procedure is as follows:
- Pour sand evenly into the container.
- Add lime paste in a ratio of 1:5.
- Mix the mixture thoroughly with a shovel or a construction mixer until smooth.
- Gradually add water while stirring the solution. Ready mix should have the consistency of rich sour cream.
- We prepare alabaster dough with the expectation that its relationship to the finished lime mortar should be 1:4.
- Add the gypsum substance to the container with the original mixture and mix well, but not for very long.
Helpful advice: Based on the fact that the lime-gypsum mortar begins to harden after about five minutes, mix the amount construction mixture, which you will be able to use during this time. At the same time, it is advisable to spend no more than two minutes on preparing the portions themselves.
Video instructions for preparing plaster mortar
How to work with the composition correctly
After preparing the mortar for plaster, you must immediately proceed to use it. If you decide to do this work yourself, then you need to familiarize yourself in advance with the main techniques, techniques and procedure for applying the solution.
At the first stage, the so-called surface spraying is performed. The solution is applied using a trowel - hand tools, which is a spatula with a curved handle. To spray properly work surface, you need to put a little mortar on the trowel, and from a close distance, with a sharp movement of the brush, throw the mixture onto the wall. The main thing here is not to overdo it, otherwise the solution will not get on the wall, but will simply splash.
At the second stage, the primer is applied using a wide spatula. If plastering is done using beacons, then the soil layer is leveled using the rule along the installed slats. After this we apply a thin upper layer plaster.
Important: Coating should be done before the primer dries, or the latter should be moistened with a brush or roller.
When the covering itself dries, it is necessary to treat the plaster with a plastic construction trowel. This action should be performed in a counterclockwise circular motion, pressing the tool firmly against the plastered surface.
As you can see, mixing mortar for plaster with the addition of alabaster and the process of finishing the walls do not present any particular difficulties. Observe the proportions when preparing the building mixture, apply the solution to the surface correctly - and the plaster will serve you for many years.
