Putty for outdoor work is an affordable material for finishing facades. Putty for outdoor work: what compositions are needed for this? What putty is better for the facade of the house

Putty for outdoor use - building mixtures having a cement or polymer base and including mineral additives, modifiers and other ingredients. The most common of these is cement facade putty. It has an affordable cost and does not require special knowledge and skills to carry out the work. The main advantages of such compositions are water and moisture impermeability, a longer period of solidification of the material and increased strength. You can buy dry facade building mixes for starting and finishing work surfaces in the right amount on the pages of the Bauff electronic catalog. By placing an order for a wholesale consignment of goods weighing from 1 ton at a convenient time, you automatically receive prompt delivery of products on the company's transport! Delivery is carried out within Moscow and the region during the day. Order facade putty and get a personal discount on your purchase!

Types of mixtures for the facade

Putty for facade finishing is a popular building material, divided into various types according to the binder and the stage of use of ready-made solutions. According to the binder, they are divided into cement and polymer. Each of the fillers has its own strengths and special characteristics that make them an indispensable material for finishing work.

Cement putty for exterior finishing

Cement compositions are indispensable when carrying out work on the exterior finishing of buildings. The versatility of the use of the material is associated with its main properties:

Moisture resistance. Due to their resistance to high humidity, cement-based putties are used to work on the facade of buildings, as well as high-quality and durable finishes for swimming pools.
Frost resistance is an indicator that allows the use of facade mixtures for roughing and finishing the exterior of houses located in the northern regions of the country.
Resistant to sudden changes in temperature and prolonged frost. Due to the presence of special fillers, putty tolerates more than 35 freeze / thaw cycles without compromising its quality.
Resistance to negative environmental influences and aggressive environments. Putties are not afraid of rain, snow and alkali and aggressive chemical compounds.
Elasticity. Allows you to quickly and easily apply compositions prepared for finishing on the walls, evenly distributing them over the work surfaces.
Sufficient fast setting helps to carry out work several times faster, and economical solution consumption reduces financial costs.

When using cement putties, it is necessary to take into account the fact that the mortar shrinks during drying, therefore cracks may appear. It dries longer than plaster and has a wide range of uses. With its help, not only the surface is leveled and deep cracks, pits and other defects are sealed, but also the walls and plinths of buildings are finished.

Polymer facade putties

Polymer-based putty for exterior finishing, as well as cement compositions, is a universal building mixture used at various stages of processing work surfaces. It is applied to the walls for a major leveling of their surface, as well as for finishing the facade of buildings. Most often, among all the existing varieties of such compositions, experts choose acrylic putty. They favorably differ from cement by the number of positive characteristics. A comparative table of the characteristics of the solutions is presented below:

Acrylic putties are made from acrylate-siloxane mixtures and are successfully used for exterior and interior decoration. Such solutions are easily and quickly applied to the wall, do not spread and evenly cover the work surface. The thickness of the applied layer should not exceed 2 mm. Odorless mixtures are used to treat cement, concrete, gypsum surfaces, and are also applied over a plaster solution.

According to the phased use of putty for the outer surfaces of the walls are divided into:

starting. Putties, characterized by grinding large fractions and used for high-quality full leveling of wall surfaces in order to remove bumps, pits, cracks, holes and other defects. Apply in a thick layer;
finishing putties are building and finishing compounds used for the purpose of final leveling of working surfaces before applying decorative finishes. The mixture is adjusted in a thin layer and allows you to hide minor defects on the walls.

Decorative mortars used to create textured elements and decorate rooms are also popular among builders and amateurs. No less popular putty for processing wooden structures. Such compositions effectively prevent the negative effects of the environment on their surface.

Stages of applying putties for the facade

Clean the surface of all kinds of contaminants: dust, dirt, oil stains and remnants of the initial finish. Remove old plaster from cracked areas.
Apply a deep-penetrating primer to the cleaned wall surface and leave the created base to dry.
After complete drying with the help of the starting putty, it is necessary to repair all existing defects (cracks, pits, depressions and irregularities). Let the applied coating harden.
Apply a working putty solution to the area to be treated and level it. As tools, use several spatulas (large and small) and a construction screwdriver. Use putty for facade processing only in its pure form. Do not dilute it with paint, glue or other mixtures is prohibited.
After the finishing putty has dried, it is primed to improve the adhesion of the next layers to it.
Layer-by-layer application of the starting putty is carried out until the working surfaces are completely leveled. The thickness of each of the layers can reach 4 mm. At the same time, new layers are applied only after the previous ones have completely dried. In this case, the average consumption of putty for leveling surfaces is 11-15 l/m 2 .
The last step in the implementation of the task is laying and leveling the mortar on top of the completely hardened layers of material for a high-quality rough finish of the exterior of the buildings. after complete drying, it is polished. The approximate cost of a putty mortar for fine finishing is 4 liters per 1 m 2.

Important to remember! Never apply putty to hot surfaces. Protect your work from direct sunlight, rain and splashing water. To protect the created coating from a set of moisture during drying, cover it with a film of polyethylene. If your home is located in an area with high humidity, give preference to the acrylic composition.

Both new and old houses require exterior design, and today the wet method of finishing the facade is increasingly used. In order to level the walls, seal the joints between slabs or bricks, and then apply the finishing decor with plaster or tiles, facade putty is used. The article will tell about the types of this finishing material and the technology of working with it.

Wall leveling is one of the most time-consuming and important processes in facade finishing. Without it, many other works on the design of the external appearance of the house become simply impossible. For example, surface plastering can only be carried out on perfectly flat walls, while applying and gluing insulation to an unprepared base is impossible.

The words putty or putty come from the German word "Spachtel" - a spatula, the use of both options is quite acceptable, so in the future story you will be able to meet both. In addition to leveling, putty performs another important function - sealing potholes and cracks in the wall. This is what it was originally used for.

Leveling a brick wall

Requirements for facade putty material

Based on the purpose of facade putty, a number of requirements are imposed on it, which must be taken into account when buying.

Plastic. This property is characteristic of a quality solution. If the material does not possess it, then there is a serious danger of cracking the coating and its destruction from atmospheric vibrations.
Vapor permeability. The most important property of all types of facade finishing materials should also be in putty. If it is absent, then evaporation will accumulate under the leveling layer and destroy it from the inside.
Moisture resistance. The ability to repel atmospheric moisture and prevent it from passing inside protects not only the putty coating itself, but also the facade of the house. Water can remain in the pores, and when frozen, burst it and destroy it.
Frost resistance. Cracking from frost or seasonal temperature differences can also befall the main wall covering, so frost resistance is a very important quality for a putty mortar.

Materials and tools for puttying

Classification of putties by purpose

All putties for facade work are divided into two types: starting and finishing. Usually both are required. Before buying, take an interest in the purpose and type of material so as not to buy unnecessary. In addition, you need to decide which putty you need more and in what quantity.

Home

The structure of this composition should be coarse-grained and have increased strength and high adhesiveness. It smooths out the main irregularities of the wall, closes up structural cracks and potholes on the facade that require repair. It is often used to eliminate masonry irregularities or defects in concrete walls. The composition can be applied in a rather thick layer - up to 4 mm. For strength, particles of marble dust and lime are often added to the starting mixture. They give it the necessary elasticity and adhesion to the surface of the building. Most often, cement compositions are used for the starting layer, and polymer binders give elasticity to the putty.

Attention! When purchasing a starter putty mixture, make sure that it is intended for facades. Compositions for interior use for exterior walls - unacceptable.

Starting putty

Finishing

The final putty coating must be plastic, smooth, waterproof, have good adhesion and strength. Most often, a mixture based on acrylic or silicate binders is used - they are more suited to the goal of creating a smooth and uniform layer. Finishing putty is used to level the surface, and therefore the particles of which it consists must be small.

The finely dispersed structure allows you to create a perfectly even base for a future decorative coating. Experienced finishers recommend applying the finishing putty in several steps with a layer of about 3 mm. Do not use mixtures for leveling that are difficult to mix with colors. If in the future you are going to finish the walls with decorative plaster or paint, then it is better to tint the finishing putty in the appropriate shade, otherwise it may show through the main finish.

Types of facade putties on the basis

The building materials market offers a wide range of putty compositions. Manufacturers, prices, types of mixtures can confuse any inexperienced finisher. Let's try to understand the main types.

Reinforcing mesh under cement

Cement

Such putties are considered the best for applying the starting layer, for sealing cracks and potholes in the wall. Cement-based mixtures usually consist of cement, lime powder with fractions of 0.2 mm, quartz sand and marble dust. To improve the performance, chemical additives are added to it. The surface covered with the starting cement putty looks perfectly smooth, but rather rough due to the coarse-grained structure of the material. Finishing cement putty has a fine structure and comes in several colors: gray, beige and yellow. White cement putty is almost impossible to find now. Since its bleaching requires expensive compositions that increase the cost of the finished mixture. It is available in the form of powders and ready mixes in buckets. The liquid material also has disadvantages.

Strong shrinkage of the dried mixture must be taken into account when sealing cracks.
If the liquid cement composition is applied in a thick layer, then the probability of cracking is very high.

In order to prevent the destruction of the cement coating, a reinforcing mesh is applied during operation.

The advantages of cement compositions cover their small disadvantages.

Ease of use allows even an inexperienced finisher to work with it.
Cement is a durable material and guarantees high levels of frost resistance, density and weather resistance.
It has an affordable price, and therefore is very suitable for treating large surfaces, which is typical for building facades.

Important! Never mix cement putty with varnishes, paints and glue, so that it does not lose its properties.

Grit of cement finish

When buying cement compositions, pay attention to the brand of cement, compressive strength and adhesion level.

Gypsum

Gypsum plastering is one of the easiest ways to putty the surface of the facade. It is very easy to work with gypsum, because it has a plastic, light structure and lends itself well to leveling. Plastic makes it possible not only to easily align, but also to accurately form corners and perform other curly work on the facade of the building. The positive aspects include good vapor permeability, frost resistance, smoothness, and easy staining. The lack of shrinkage allows you to make the layer as thick as you like and apply it in one go.

But there are also negative sides. If you live in rainy, humid areas, it's best to keep gypsum to a minimum, as it absorbs moisture quite well and can break down when exposed to it. On the other hand, the gypsum mixture dries very quickly, so it is not recommended to work with it under the scorching sun.

When purchasing gypsum plaster, pay attention to the manufacturer. It is better to take proven brands. So you protect yourself from rapid damage to the facade and get confidence that the mineral additives contained in the composition are of high quality, which means that the coating will last longer.

Gypsum plaster can be applied in one layer

Acrylic

These finishing materials are starting and finishing. Possessing all the necessary properties, acrylic mixtures can and should be used for facade work. They are sold ready-made, which makes them even easier to use. Facade putty made of acrylic has good adhesive properties, but is applied to a pre-primed surface, since the putty layer is quite thin. The only drawback of acrylic mixtures is the higher price compared to previous products, which does not allow it to be used over large areas as a starting layer. Most often it is used for finishing.

latex and acrylate

These types of putty materials are designed for extreme conditions and therefore they are used for outdoor work. They are even more moisture resistant and frost-resistant than conventional acrylic composition. Its durability and plasticity have earned recognition from builders and finishers around the world. Latex and acrylate do not crack when dry and do not shrink. High adhesive properties make it possible to further strengthen the protection of the walls of buildings and make the connection with the subsequent decorative coating the most durable. Latex mixtures come in a wide variety of colors and therefore do not require additional coloring. The thinnest layer of this composition forms the perfect finish. There are such starting and finishing plasters, but too high a price is their main drawback.

Colored latex putties

How to choose the right putty for the facade

The characteristics of the putty and the knowledge of which material is best applied in certain cases will help you not to make a mistake with the choice.

When insulating the facade with polystyrene foam, polystyrene foam or polyurethane foam, it is better to use latex and acrylic textures. Use the same types of finishing mixtures for poor wall permeability, for example, to concrete or metal.
If you live in cold zones, where frost is a frequent guest, then use a special frost-resistant putty.
Do not use oil products for facade work, but if you do purchase them, then remember that you will only have to paint them with oil paint, since other paints will not fall on drying oil plaster. But if your house is made of wood, then oil facade putty is a good choice.
Try not to use materials from different manufacturers, price categories and types. If you started working alone - try to finish the process of puttying the walls with the same composition. Remember that the materials may not be combined with each other! It is for this reason that it is better to immediately calculate the amount of the product and evaluate your financial capabilities.
When calculating the amount of material, proceed from the thickness of the layer you need to apply. The thinner the coating, the less putty is consumed.

Dry polymer-cement plaster mixture

Main manufacturers and prices

One of the most recognized manufacturers in the building materials market is Ceresit. Polymer cement plasters of this manufacturer are distinguished not only by high quality, but also by low cost. They are made from a cement-sand mixture with the addition of polymer additives and synthetic fibers for plasticity. These mixtures are characterized by high vapor permeability, fire safety, long shelf life, cost-effectiveness. In addition, Ceresit putties differ from many in color. These are white mixtures, which is rare among cement compositions.
Synthetic plasters of this company are produced in finished form and meet the requirements of facade materials. Acrylic, based on acrylic resins, polymer silicate and polymer silicone compounds are used for finishing walls. They are highly resistant to deformation, moisture resistant and elastic. You can study the properties of acrylic materials from the photo in the table.
Knauf, a global manufacturer of building materials, has a strong position in the sale of plaster and putty compositions. It produces finishing cement mixtures in dry form, which significantly saves money on facade finishing. Packing in 25 kg of multi-finish cement mixture costs about 600 rubles.

Characteristics of acrylic filling materials Ceresit

The Prospectors company has proven itself well in the domestic market. It offers various facade mixtures at low prices with good quality. Finishing putties "Weber Vetonit" have been in demand for many years. This dry polymer product for facade work has a low cost - about 600 rubles.

Multi finish Knauf

Finishing work

Starting putty application technology

The easiest and most popular way is plastering on lighthouses.

We start plastering the wall. To do this, take a trowel in your right hand, and in the left solution and with a sharp movement throw the solution onto the wall. After that, we rub the putty mixture over the surface with a trowel or grater.

Grout mixture

The whole process is well shown in the video. Pay attention to the technique of throwing the solution on the wall.

Lighthouse wall plastering

The process of finishing with finishing putty

The technology of finishing with a finishing putty material is reminiscent of working with a starting solution. After the starting layer has completely dried, apply the finishing layer in the same way: using a trowel, we throw a solution on the wall and rub it. The only difference is that the thickness of the coating is minimal, and the rubbing must be very thorough, since this process is followed by the application of a decorative coating. You can apply several ways of grouting putty: round and round.

When finishing, it is important not to interrupt the process of processing the wall. Try to calculate the time for finishing entire sections of the facade.

Putty grouting methods

As you can see, facade putty can be applied with your own hands, it only takes a little patience. By preparing the walls for decorative finishing on your own, you save a lot of money that you can spend on better material.

Post Views: 180

When choosing wall painting as a facade finish, they must be properly prepared for applying a decorative coating. What material to choose for this?
Best cement cerizite putty for outdoor use in the form of a dry mix or a ready-made polymer-based composition. What are their advantages?

The first rule when choosing a suitable composition: there must be a mark on its packaging indicating the area of \u200b\u200bapplication. In our case, facade putty is needed (see Facade putty - features of choice and use). Not just moisture or frost-resistant, but specifically designed for outdoor use.
No gypsum-based mixture is unambiguous, since gypsum absorbs moisture very well, and the coating from it will not last long.

Composition and purpose

But external putty for walls can be different, both in composition and in purpose. With regard to the composition, the choice is limited to mixtures based on cement or polymer resins, i.e. those substances that have high strength after drying and perfectly resist the most adverse atmospheric influences.
The difference between them is as follows:

Polymer putties are produced ready-made, their price is higher, but it is also easier to work with them.

And cement should be prepared immediately before application, stirring with water and independently determining the optimal consistency.

Which one to choose is up to you. It depends on financial capabilities, and on the experience in puttying. Ready-mixed, of course, is more convenient.
Also, facade putty, regardless of composition, is starting and finishing:

The starting one has a coarser, coarse-grained structure and is used for the initial, rough leveling of surfaces. Differs in high adhesion to concrete, limy, brick and other mineral bases.
Well fills the seams in the masonry, deep cracks, chips and other irregularities. The thickness of the layer can vary from a few millimeters to several centimeters.

Note. It is better to apply several thin layers than one thick one - the quality will be higher. In addition, without being a specialist and for the first time doing such work with your own hands, it is quite difficult the first time to maintain the same coating thickness over the entire area.

Finishing putty for exterior work has a fine-grained structure and is intended for the final leveling of the surface, making it smooth. Although there are special decorative mixtures with additives of coarse quartz sand or marble chips to give the facades a relief texture.

What properties should the material have?

Puttying the house outside is intended not only to give it a neat and aesthetic appearance, but also to protect the walls from all the influences that they will be exposed to during the entire period of operation.
These are, first of all, natural phenomena: rain, snow, high humidity, sunlight, frost, sudden changes in temperature, etc. In addition, the facade experiences greater mechanical stress than the internal walls.
Do not forget about maintaining a healthy microclimate in the house, which largely depends on the exterior wall decoration.
Based on this, we can conclude that the facade putty should have the following properties:

Water resistance;
Frost resistance;
Vapor permeability;
strength;
Elasticity and a low degree of shrinkage so that cracks do not form;
Environmental friendliness.

It is especially important that the finishing putty of the outer walls possess these properties, since the main load falls on it.

Application features

It is hardly necessary to describe in detail the process of puttying facades - the technology is no different from a similar finish on interior walls.
Let's just recall the main points and recommendations that any instruction on the use of these materials contains:

The base before puttying must be cleaned of loose old coating, masonry mortar influx, dirt, traces of oil;
Under each layer of the solution, it is necessary to apply a deep penetration primer to increase adhesion;
You can work only at an air temperature not lower than + 5-10 degrees and humidity not higher than 75-80%;

It is important! Extreme heat above 25 degrees is also not the best time for finishing: putty dries too quickly, which can lead to cracking. With a high degree of probability this will happen if applied to walls heated by the sun.

It is necessary to adhere to the layer thickness recommended by the manufacturer, do not exceed it;
Do not mix putty with other building mixtures;
Until the finished surface gains strength and hardens, it must be protected from exposure to sunlight and rain by covering it with a film.

Conclusion

Facade putty is used for finishing walls, window and door slopes. Often it is also used to level the bases in rooms with high humidity.
The most common way of decorative finishing on putty is painting with facade paints. It is often combined with the facing of individual elements and corners of buildings with natural or artificial stone.
The video in this article will tell you more about this material and its application.

Almost any construction activity cannot be performed perfectly. And in order to give the building a perfect and finished look, it is necessary to carry out outdoor work using facade putty. With it, you can prepare the surface for a decorative coating.

Often this material is called a little differently - putty, but both of these concepts are equivalent. Putty for outdoor work has several purposes:

Surface leveling for finishing.
Protection of the facade from the harmful effects of the environment.
Strengthening materials.

Currently, putty can be purchased at any hardware store. It is sold in two types:

Ready mix. It is in special containers, the volume can vary significantly. It is very convenient for carrying out unscheduled work, or if long-term transportation is not required. Has a storage time limit. Can be used gradually after opening the container. Fear of frost.
Dry mix. It is used for large-scale work, as it is much cheaper. Can be transported and stored for a long time. Do not store in damp areas.

Types of putties for facade work

Mixtures for facade work differ based on their tasks. The following groups are distinguished:

Main. Consists of large fractions. Used for initial application. It smooths out small bumps, drops. With its help, cracks and chips are closed. Well suited for objects that were built from bricks, foam blocks. Very durable, does not react with chemicals. Can be applied in layers up to two centimeters. The solution for work should have the consistency of sour cream. In a more liquid state, the consumption of material increases, it takes more time to dry, and the desired result cannot be obtained.
. Consists of a small fraction. Apply to prepared surface. Serves only for minor leveling. Hides small cracks. The application thickness does not exceed 3-4 mm. The solution is prepared in a more liquid form than for the main (starting). In both cases, an acrylic mixture works well.
Putty for decoration. Used to create textured elements on the surface.
Putty for wooden structures. Protects objects made of wood or with wood veneer from climate influences.

Facade putties differ in technical characteristics. Each of them performs its own role in protecting the building. The correctness of their application and alternation makes the object durable.

This material must have the following qualities:

resistance to high humidity and frost;
elasticity, with slight shrinkage, no cracks should appear;
must have pores that allow the surface to "breathe".

Types of putties on the basis

Putties have a different composition. But it all depends on the component that is the main one. It is he who gives her the qualities that are necessary. But besides the positive qualities, there are also negative ones. The development of technology has allowed the creation of new types of materials, for example, acrylic fillers. So, other polymer putties appeared. They began to have a large number of positive qualities, but were not yet available. Below is a table that clearly shows the types of mixtures.

Putty/kind	Positive properties	Negative properties
Facade putty - cement	Moisture resistant (water resistant). Not afraid of frost (frost-resistant). Durable. Special care is not required. The cost is low.	Cracks may appear during the shrinkage of the building. Shrinks when dry
Putty for facade work - acrylic	Durable and moisture resistant (water resistant). It is not subject to destruction due to shrinkage of the building. Does not require specific conditions for application.	Insignificant layer of application. Not suitable for leveling large imperfections.
Facade putty - latex	Very plastic and durable, does not crack during shrinkage. Easy to apply.	The cost is quite high.

The most commonly used putties are of two types: cement-based and acrylic-based. The first is chosen because of the satisfactory characteristics and low price. The second because of its positive qualities, which are far superior to the first.

Cement-based putties

With good strength, this material does not form cracks after drying. The composition for the initial work includes sand, which is pre-crushed. The final composition includes:

finely ground limestone;
ground quartz sand;
microcalcite.

The modern composition contains special chemical additives that improve its characteristics. This putty has different shades. There was a white cement putty, but it was no longer produced.

When choosing such a material, you should be guided by the following aspects:

what brand of cement is used;
what is the compressive strength;
how it interacts with the material that will serve as the basis;
great for concrete work.

Acrylic-based putties

Such putties include the addition of special polymers. They can be used for all types of facade decoration. Such mixtures are already ready for use, they do not need to be further diluted with water. If desired, they can be tinted, but for this you need to make sure that the color is chosen correctly. Apply in thin layers.

Such mixtures have many advantages:

long service life, this is ensured by the addition of chemical elements;
they are not afraid of shrinkage of the building, they do not form cracks, but adapt to changes;
little time for complete drying;
no strong odors or secretions.

But, these putties have their drawbacks. They react with some materials. Therefore, you need to carefully monitor for which surfaces they can be used.

How the solution is prepared

If ready-made mixtures can be used almost immediately, then dry ones will have to be a little tricky. Although the process of preparing the solution is not so complicated. It all lies in the fact that the powdered putty must be diluted with water and mixed. The kneading must be thorough, for this it is better to use a drill with a special nozzle. Each solution has its own mixing time. It is indicated on the packaging. It is best to follow the instructions, then you can be sure that the mixture will turn out to be the right consistency.

The amount of solution is prepared based on the amount of work. If there is too much left, then it will not be possible to save it. You can determine the rate based on the data that the manufacturer must put on the packaging.

Work order

It is better to start all work when the building has completely shrunk. This is the only way to avoid unwanted cracks. This should be especially borne in mind when cement facade putty is used. If the surface has large irregularities, then several layers will have to be applied. Drying time depends on the putty used. Acrylic mix dries faster. You also need to take into account the weather conditions.

Work sequence:

The walls are cleared of pollution.
The surface is primed.
Large defects are repaired separately.
The plastering of the façade begins. The required number of layers are applied. Each layer must dry completely.
The last layer after application is polished.

The choice of the right putty for the facade depends on the work performed. All parameters must be taken into account in order to achieve the desired result. It is very important to follow the instructions, then you can be sure that the treated surface will perform the functions that require it.

A competent choice of putty for the facade allows you to protect yourself from numerous problems in the future. This building material helps to prepare the surface for finishing and protects it from negative external influences. With its help, cracks and other defects are leveled.

Varieties

Depending on the consistency, the following types of facade putty are distinguished:

Finishing;
Starting.

The starting material is characterized by a coarse-grained structure. It is suitable for initial finishing. This putty is distinguished by good adhesion, ease of processing.

It effectively levels the surface. It is enough to apply layers up to 2 centimeters thick.

Facade finishing putty is very fine. Its use allows you to get a smooth and even base. It precedes the beginning of decorative finishing. When compared with the "start", then this material is less durable. When working, you need to ensure that the thickness of the putty applied does not exceed 5 millimeters.

Now on sale there are also universal ones. According to the photo of the facade putty, it cannot be distinguished from other types. They combine the qualities of finishing and starting materials.

Often, they are used for internal repair and construction work. They are unsuitable for finishing the facade.

When performing outdoor work, a material made on the basis of cement or polymers is used. It is resistant to negative temperatures, high humidity.

The "start" contains quartz sand, the "finish" contains marble dust, ground sand. To improve the performance, various chemicals are added to the material.

Advantages and disadvantages

All types of putties have their advantages and disadvantages. Let's consider them in detail.

Cement putties: resistant to moisture, temperature extremes. They are unpretentious in operation and differ in affordable cost. The disadvantages include that the material shrinks. There is also a high probability of cracks and other similar defects.

Polymer putties are of two types:

latex;
Acrylic.

The first are considered universal. They are suitable for both outdoor and indoor decoration. They are odorless and do not emit substances hazardous to human life and health.

The material is plastic. After drying, cracks do not appear on the surface. The only drawback is the high cost.

Acrylic material also has a wide range of applications. Acrylic, present at the base of the putty, provides it with resistance to moisture, plasticity. The material does not peel off. It is used to finish and protect surfaces made of concrete and foam concrete. The maximum layer thickness is from one to three millimeters.

Masters working with this building material should take into account that the surface must first be primed. There are also disadvantages. Firstly, if there are serious defects on the surface, then puttying will have to be done in several stages. Secondly, grinding work must be performed exclusively in a respirator.

Putty for exterior finishing is applied in various ways. The hardware method is considered quite effective. For this, a device is used that supplies a solution under high pressure.

However, there are several requirements here. The material must certainly be given a given consistency. In addition, the hardware method does not allow uniform application of the material.

The best solution is to apply the solution to the surface with a float or spatula.

Regardless of which particular option is chosen, the surface must be properly prepared:

Clean from oil stains, dirt and dust;
Treat with a primer (it will provide perfect adhesion of building materials, protect the surface from mold and mildew).

The finished mixture must be thoroughly mixed, and the dry mixture must be diluted with liquid. It is recommended that you strictly follow the manufacturer's instructions.

It is desirable to prepare the solution in small portions. This is due to the fact that its plasticity gradually decreases. The setting period depends on what ingredients are present in the mixture. Often, it is from thirty minutes to two or three hours.

Serious defects must be removed. All cracks, holes and potholes are sealed with putty. It is allowed to start applying a continuous layer when all the “patches” dry up.

If there is a need, the master can apply a few more layers. To achieve a smooth and even base, it must be sanded.