Says expert builder Viktor Petrovich:

I am often asked which putty is better to use in wet rooms, and which one in dry rooms. I will now answer this question for you.

In wet areas, it is better to use a special moisture-resistant cement-based putty. In this regard, Weber Vetonit VH putty has proven itself well. It lays well in several layers, it is easy to skin it, that is, to remove some extra sagging. And also it perfectly absorbs moisture, that is, moisture does not concentrate on it.

For damp rooms it is good to use Weber Vetonit VH

In addition, this putty is easy to paint: the paint falls on it very well. In this case, again, such a surface, please note, you need to paint only with moisture-resistant paint. It is also important that in wet rooms, for example, in the kitchen, in the bathroom or on the balcony, in no case should polymer putty binder be used. Such as let's say Vetonit LR +.

The named material is used only in dry rooms: it is good to use it when decorating walls and ceilings in ordinary rooms. It also proved itself on the market from the most positive side: it lays down well in several layers, perfectly skins and lends itself perfectly to painting. Also, wallpaper is well glued to such a putty.

Vetonit LR+ is perfect for dry rooms

Most importantly: in wet rooms we use putties, which are called “moisture resistant”, and in dry rooms we use the material that is indicated on the package - “for dry rooms”. Dealing with this is quite simple, having come to a regular store. By the same principle, by the way, we choose the paint. If the paint is waterproof, then we take it for wet rooms, if not, then we will use it for dry rooms.

They also often ask me, what kind of putty should I use on the balcony - for dry or for wet rooms? I answer: on the balcony you need to use moisture-resistant putty, since this room is still often wet. For balconies and loggias, it is good to use a putty such as Vetonit VH. It is widely used even for building facades.

Budget option for wet rooms Kreps VL

In addition, there is a moisture-resistant putty Kreps VL. It is much cheaper than Vetonit VH. But at the same time, it does not skin well, as it quickly hardens, and then it is difficult to remove unnecessary irregularities from it. Therefore, it is better to use Vetonit VH, but it all depends on your budget.

If you do not have the opportunity to buy an expensive good putty, then Kreps VL can also be used. Only then you will have to suffer more with sanding, but you can also cope with this as a result, and then you will need to paint it with moisture-resistant paint.

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Waterproof putty: an overview of popular offers from manufacturers

Are you planning a bathroom renovation? My experience suggests that in this case you will need a waterproof putty. A review of its general qualities and technical characteristics of the most popular offers on the construction market will help me prove this.

General provisions

Please note that the prices in the article are current in the spring of 2017.

What properties does a waterproof putty for wet rooms have? Why is it worth using it when carrying out finishing work in a bathroom or pool?

Key qualities

1. High moisture resistance. If we are talking about rooms with high humidity, then all the finishing materials used in them should, first of all, easily tolerate dampness and direct contact with water drops;

The described quality is necessary for putty even if it is subsequently covered with another decorative facing material. After all, it will protect only from direct exposure to water, but not from steam.

1. Resistant to temperature changes. It is cold in an unused bathroom, but after you draw hot water into the font, it immediately becomes hot in it. Ordinary putty in such cases begins to change its volume, as a result of which the lining crumbles from it;

1. Durability. On average, you can count on 20 years of service, so you don’t have to worry about the imminent need for re-repair.

Varieties

The qualities described above have the following types of putties:

1. Cement. The main component of such mixtures is high-quality Portland cement. This building material with the influence of moisture only gains strength, and does not lose it. Also, a fairly low cost of the product should be attributed to the plus. And if you also choose putty with the addition of, for example, marble chips or colored pigments, then you can do without further decoration at all, which will lead to even greater savings;

If you don’t notice cement moisture-resistant putty on the shelves of a hardware store, then you can safely buy a facade one. Since it is able to withstand atmospheric influences, it means that it will be able to transfer the conditions of the bathroom.

1. Polymer. These are water-dispersed compositions based on acrylic or latex. In addition to high moisture resistance, they are also distinguished by a simple instruction manual. The only downside is the relatively high cost.

I do not recommend using gypsum putties in the bathroom, even if they have the appropriate marking on moisture resistance. Such mixtures are simply unable to withstand large amounts of steam, temperature fluctuations, and especially direct contact with water.

Proposals from manufacturers

In construction stores, you may come across the following waterproof putties:

• « Weber Vetonite»:

• « Shitrok»:

• « GLIMS Styro Prime»:

• « GLIMS Finish-R»:

• « Prospectors Basic Gray»:

Conclusion

You got acquainted with the features and varieties of waterproof putties. The video in this article contains additional materials, and you can ask questions in the comments.

If you want to express gratitude, add a clarification or objection, ask the author something - add a comment or say thanks!

Before starting repair work, you must purchase all the necessary finishing and consumables. Each room has its own decoration. Wet room putty becomes indispensable if you are planning a bathroom renovation. It is often used in the process of finishing pools.

Often, surface preparation for finishing is associated with leveling uneven areas and applying a layer of putty. But it is important to select the purpose and type of mixture depending on the room. Not every putty is suitable for a wet room. If it is chosen incorrectly, the entire repair will not live up to expectations. Therefore, a moisture-resistant putty for the bath must be used.

It is applied to all surfaces that are exposed to water and moisture in various forms. So, it can be a direct ingress of water or moisture on the surface, the formation of vapor or condensation. If you do not treat the walls and ceiling with such a composition, the paint will peel off very quickly, and the entire repair will not justify the investment and everything will have to be redone.

Putty for wet rooms should be used not only in the bathroom and bathroom. It is ideal for the kitchen, pool and bath. The cost of such material is somewhat higher than usual, but it pays off almost instantly after the repair is completed. Mold will not appear under ceramic tiles, and the paint will last a very long time and will not lose its original shade. The surface will remain perfectly flat, which is important for subsequent decorative finishing.

Main types

Waterproof putty for the bathroom is represented by several types. Each mixture has its own advantages, which are necessary for certain conditions. To choose the right option, you need to familiarize yourself with the main options for putty:

• Cement. This is a moisture resistant material. This composition is ideal for applying to walls and ceilings in the bathroom of a house or apartment. Cement putty is inexpensive, making it affordable for most buyers. Of the negative points, a grayish tint and a granular structure can be distinguished. It should not be used in combination with white or other light colors.

• Gypsum. This bathroom putty stands out with a pleasant light shade. The mixture dries quickly and ideally prepares the surface for painting with pastel colors. Putty lays down in an even layer, which facilitates subsequent finishing. But this material is used only for indoor use. It is not suitable for working with facades. This is due to the fact that gypsum does not tolerate temperature extremes.

• Polymer. This finishing mix represents an advanced development. It consists of high-tech particles, and the process is high-tech particles, and the polymerization process is carried out in contact with air. Moisture-resistant putty remains plastic for a long time, so you can work with it slowly. But with such compounds, a respirator is required.

• Oil-glue. This material is a powder mixture that needs to be diluted. Such a putty layer is ideal in utility rooms that do not need high-quality repairs.

On the video: how to plaster the walls in the bathroom.

Properties

Wall puttying in the bathroom and other wet areas is carried out for subsequent painting or surface finishing with ceramic tiles. Regardless of the decorative layer, the putty should have the following properties:

• high resistance to moisture, which retains putty even after decades;
• resistance to temperature changes, which are typical for the bathroom and kitchen;
• environmental friendliness, since the mixture must be safe for human health;
• affordable cost, which is important when applied to a large area.

As a result, you should get a resistant and strong layer that is ideal for the ceiling and walls in the bathroom. It should interact well with tiles and coloring composition. If you plan to apply bright or dark paint, you can stop at the cement mixture. If you are looking for a composition for walls for painting, pay attention to the Vetonit polymer mixture.

These properties are basic. In a particular situation, it is necessary to be guided by the most important qualities for the premises.

One of the most versatile is Knauf plaster, which allows you to create any design solutions even in the wettest rooms.

Features of working with moisture-resistant putty

Any putty for the bathroom, pool and other wet areas gains hardness within a day after application. High-quality compositions have increased elasticity. They cover the surface with an even layer and are distinguished by good adhesion to the main surface. Knauf plaster with a moisture-resistant effect makes it possible to protect the base well and install a finish with high decorative qualities.

The composition of mixtures based on cement, such as Vetonit, includes plasticizing components and pigment dyes. The result is an optimal putty for the bathroom for painting.

Some compositions can be used in facade work. But they can also be used for the treatment of interior surfaces of premises. Putty mixture Vetonit, intended for facade work, is successful for use on walls in wet rooms. This is a great solution if you have leftover mix after working on the outer surface of the walls. But you can also purchase a special composition for rooms with high humidity.

A feature of most modern mixtures is the absence of the need to purchase special tools. The compositions are used on a primer layer, which can be applied manually. After that, alignment is performed, closing up all the irregularities and minor defects.

Advice! On critical areas of the surface, it is necessary to apply another layer of the mixture with a moisture-resistant composition. This is important if you are applying under-tile putty.

Subtleties of choice

When using putty for the pool or kitchen, you must be careful and take your time. It is important to study the presented assortment in order to choose the right product. After reviewing the Knauf positions, read the instructions for using the mixture.

Give preference to the one that differs in the composition acceptable to you and the necessary properties. As a result, you will get a waterproof surface, completely protected from moisture. It is worth considering that the Knauf waterproof mixture dries faster than the standard one.

Pay attention to the term hydrophobicity. If it is present on the package, the finished mixture must be applied in 2 layers. As a result, painting will be simple and of high quality, and the coating will remain in its original form for many years. When buying Vetonit plaster, keep in mind that it must match the material being processed.

A mixture with coarse sand is suitable for brickwork. And if you need to process smooth blocks, give preference to mixtures with fine quartz sand.

Wall preparation and plastering

When processing any surface, it must first be prepared. Before applying Knauf plaster, completely remove the old finish. Pay attention to the need to remove dust, dirt and grease stains. Remove protruding items such as screws and embeds. They can be knocked down with improvised tools.

The next step is to disinfect the surface. To do this, clean all damaged areas. It is good if you treat the wall with an antiseptic composition. Then the surface must be primed. This is necessary, as the primer provides good adhesion of materials to the surface.

Advice! Often, cracks or holes appear between the seams on the ceiling and walls. They must be sealed with cement putty. If this is not done, the future finish will not be of high quality.

At the final stage, it is necessary to apply putty. But on the packaging there should be a note that it is suitable for wet rooms. The surface acquires not only perfect evenness, but also becomes protected from the effects of steam and moisture.

Moisture-resistant composition is ideal for renovations in the kitchen and bathroom. This putty is indispensable for finishing the pool. But follow the manufacturer's instructions as closely as possible.

Thus, putty has a direct impact on the appearance of the finished surface. It not only creates a perfect coating, but also protects it from moisture and steam. Moisture-resistant putty becomes an excellent solution for those who are planning repairs in the bathroom or in the kitchen. It is indispensable in the decoration of pools. The main thing is to follow the sequence of actions proposed by the manufacturer.

When leveling walls in bathrooms, a special waterproof putty for the bathroom is usually used. Unlike other materials, such a composition does not lose under the influence of moisture, but, on the contrary, gains strength, which significantly increases.

In our article, we will describe the main features of moisture-resistant putties, as well as analyze all the nuances of their use in bathrooms.

Finishing material

Putty requirements

When deciding which putty to choose for the bathroom, you need to take care of meeting the basic requirements:

• First of all, the material must be moisture resistant. This means that both during the polymerization process and during further operation, the mechanical characteristics of the composition used should not decrease under the influence of moisture.

Note! This requirement is true even if the leveled wall is hidden under the finish.

• Secondly, after polymerization, the putty layer should not be subjected to intense temperature deformations. This is due to the fact that tile is often used as a finish, and if the base is too “movable”, then sooner or later the lining will begin to fall off.
• Thirdly, the material should be as durable as possible. The optimal service life of a leveled wall starts at 20 years, and it is this figure that you should be guided by when choosing a mixture for work.

All these parameters must be taken into account without fail, because high-quality moisture-resistant putty for the bathroom is the basis for the entire finish.

Features of the most popular funds

If we talk about the compositions used for this purpose, then the characteristics of most of them are quite similar:

• High-quality Portland cement is used as a binder. The use of this material is fully justified: with regular moistening, especially in the first months after application, the composition gains much greater strength than when dried at normal or low humidity.

Note! You will curse this feature in 25 years when you clean the wall for the next repair. However, there is no guarantee that this will be necessary!

• As a filler, clinker chips, sifted sand, ground marble, gypsum, etc. are used. To facilitate application and extend the service life, hardeners, plasticizers, and sometimes pigments are also introduced into the composition. Painted putties can be used for self-finishing, i.e. without the use of finishing materials.
• An alternative to cement compositions are putties with a polymer binder. The most popular today are water-dispersed compositions based on liquid acrylic or latex with the addition of marble grain.
• Like cement, these compounds are not at all afraid of moisture either during application or during further operation. However, the high price and a relatively small (albeit expanding) assortment have so far reduced the popularity of polymeric materials.
• Another trick when leveling the walls in the bathroom for tiles is the use of facade mixtures. According to their characteristics, they are almost ideal for use in high humidity conditions. Well, we can easily mask the coarse-grained texture with tiled lining!

As for gypsum leveling mixtures, in the name of which there is a mention of moisture resistance, then you should not use them in the bathroom. They, of course, resist moisture much better than traditional gypsum putty, but in the bathroom they will lose to both cement and polymer composition.

Leveling the walls in the bathroom

Surface preparation

So, we chose putty (cement or acrylic). Now we need to qualitatively apply it to all surfaces. How to do it yourself, we will now tell.

As in any business, success largely depends on the quality of the preparatory work.

In order for the leveling compound to adhere firmly to the surfaces, it is necessary to properly prepare the base:

• Firstly, either along the plaster layer, or along the leveling sheathing made of gypsum board or moisture-resistant boards. In any case, we will have to remove the remains of the old finish (tiles, cladding) from the walls and clean the surface.
• To facilitate our work, we make a rough leveling before puttying. Slots can be filled with a moisture-resistant sealant or cement mortar, and large irregularities (concrete swells, protruding pieces of gravel, rebar) can be knocked down with a perforator.

• Further, the instruction recommends disinfecting the wall. The warm and humid environment in the bathroom is ideal for bacteria and fungi to thrive. To avoid the appearance of pathogens, we impregnate the leveled surfaces with an antiseptic.
• The last step is the primer. For the bathroom, the ideal solution would be to use a penetrating composition based on liquid acrylic. Surface primers are not suitable, as they form a smooth layer that reduces adhesion.

Advice! For drywall bathroom cladding, deep penetration mixtures with a polymer binder also provide additional waterproofing.

Apply the primer with a brush to all treated surfaces. After the composition has dried, we proceed to leveling.

Layering

To create an even layer on the walls of the bathroom, suitable for further cladding or painting, proceed as follows:

• We put the first part of the prepared material into the recesses of the wall, as well as into the irregularities lying below the general level (it is convenient to check this with a long rule). Level the mass with a spatula and let it dry for several hours.
• We process the applied putty with a primer and dry it again. The better the liquid is removed from the base layer, the more reliable the adhesion will be.

• Apply the final layer of leveling material. For processing large areas, it is convenient to use a trowel about 50 cm wide. It is better to process small bathrooms with a spatula - this way there will be less marriage.
• We smooth all the walls until a perfectly smooth surface is achieved. We do the same with the ceiling.

After applying the second, finishing layer, it is necessary to dry the entire surface with high quality. And in order for the drying process to be as efficient as possible, it is necessary to ensure a stable temperature and the absence of drafts. This is easy to do by simply closing the bathroom door.

But excessive moisture not only does not harm the cement putty, but also helps it gain strength. So there is no need to turn on forced ventilation.

Finishing

Now we need to prepare the putty walls for painting or cladding:

• First of all, processing must begin no later than three to four days after the alignment is completed. Otherwise, the cement will harden so much that no grinder will take it.
• Secondly, during processing, strictly adhere to safety regulations. Dust is enormous, so a hair cap, goggles, and a respirator are a must.

The alignment process itself is simple, although quite laborious:

• On a manual grater or electric grinder, we fix the abrasive mesh for finishing. Instead of mesh, you can use emery No. 80 or similar - as long as the grain is not too large.
• We process all planes in circular motions until the slightest irregularities are removed.
• In the course of work, we control the state of the surface using a level and a rule.
• After grouting is completed, we remove the dust formed during the work.
• At the last stage, without fail, we prime the walls and ceiling with a penetrating compound. This composition acts as a binder between all layers of putty, and increases the strength of the base for decorative finishes.

Conclusion

Moisture-resistant putty for the bath is used in almost the same way as any other material. However, the properties of the components that make up its composition make it possible to use it in conditions of high humidity. At the same time, the quality of alignment does not suffer at all, especially if all the work is done according to the rules.

The video in this article will help you deal with some of the nuances, and you will approach the repair with high-quality theoretical training!

Moisture-resistant putty is much more expensive than usual, and many novice craftsmen consider its acquisition to be a waste of money. But is such savings always justified? Sometimes the desire to save a little leads to additional costs, because a putty composition that is not suitable for the conditions of the room absorbs moisture, deforms, and the finish will lose its attractiveness.

Importance of application

In the bathroom, in the kitchen or on the street, if you use conventional puttying compounds, the following will soon happen:

1. The putty will absorb the moisture in the air and swell.
2. The adhesion of the putty mixture with the base will become fragile.
3. A loose bond to the substrate will cause the decorative finish to crack or peel off.

Recently made repairs will no longer look perfect, and you will have to redo it. And this is additional financial expenses.

How to choose a putty mixture

What is the best waterproof putty? How to choose a composition that will provide the perfect appearance of the finish and will not absorb moisture? To do this, it is worth considering the main components of moisture-resistant putty. The material is made from:

• cement;
• gypsum;
• acrylic;
• latex.

Cement

The main component of this mixture is Portland cement, to which polymer additives are added. It is sold as a dry mix, and before applying to the surface it is diluted in the required proportion with water.

The diluted cement composition hardens very quickly, therefore a small amount of powder is recommended to be diluted at the same time. A distinctive feature of the compositions for leveling walls with cement is that the higher the ambient humidity at the time of solidification, the stronger the connection. On the first day, in order to obtain increased strength, it is recommended to water the applied putty mass with water, and it is better to finish the facades on a rainy or foggy day. Another plus: any finishing material fits well on a cement base.

This is an ideal putty for wet rooms, pools and facades, but its cost is high. Those who wish to save money are advised to familiarize themselves with the features of other moisture-resistant mixtures and then already determine which one can be purchased to level the surface if the room has high humidity.

Gypsum

For the manufacture of gypsum-cement mixture is used. Gypsum putty has almost the same strength as cement putty, but only after complete solidification. It is rarely used in the pool, but quite often for finishing facades, bathrooms or kitchens.

Gypsum putty for a bathroom or for a facade has one big minus: within a day after its application, until complete polymerization occurs, the surrounding atmosphere must be dry. This means that you will not be able to use the bathroom, and the weather should be warm, dry outside. If this rule is not observed, it may happen that the gypsum absorbs excess moisture and adhesion to the leveled surface is broken. Gypsum putty is a little cheaper than cement putty.

Acrylic

• convenience in work;
• environmental cleanliness (do not contain toxic substances);
• low cost.

Manufacturers produce a dry powder with acrylic and polymer components, which must be diluted with water before use, as indicated in the instructions. The composition is produced as a universal or for use taking into account the type of base (it additionally contains components that protect the material). So, anti-corrosion components are added to the mixture for metal puttying, and wood putty with acrylic will additionally protect the wood from fungus, insects or fire if it is spread in a thin layer over the entire surface of the wood.

Some home craftsmen prefer to make do-it-yourself putty paste with acrylic using water-based acrylic varnish and gypsum powder. Gypsum is added to the varnish until a uniform consistency of medium viscosity is obtained and quickly applied to the surface. According to the masters, the gypsum-acrylic mixture hardens quickly and provides strong adhesion to the wall. It is used for exterior and interior decoration before applying the finish coat.

Latex

The main advantage of latex is plasticity, which remains even after drying, so even flexible trim elements can be leveled with it. Putty with latex adheres well to the base and creates a beautiful matte or glossy film on the surface, which retains its qualities for more than 10 years. It dries well, retaining its moisture-resistant qualities even in conditions of high humidity. Various dyes adhere well to the latex surface.

The disadvantage of latex putty is the ability to collapse under temperature extremes and under the influence of sunlight, so it is used only for interior work. Latex is widely used in the decoration of the kitchen or bathroom as an environmentally friendly and quick-drying material.

After reviewing all the characteristics, you can decide which putty composition is most suitable for leveling walls before decorating them.

Finishing technology

How to work with moisture resistant putty? In the same way as with the usual one, and it does not matter on the basis of what it is made: gypsum, cement or latex. Do not immediately dilute the putty powder, as indicated in the instructions, before using it, several preparatory steps must be carried out:

1. Clear the wall. Traces of old finishes, dust and various contaminants are removed from the surface. To do this, depending on the degree of contamination, a spatula or a metal brush is used. Some craftsmen prefer to use a grinder with the appropriate attachment.
2. Wash. Some masters neglect this stage, especially when carrying out facade finishing, but washing more completely removes all contamination. For washing facades or fences, it is recommended to use a portable car wash, and wash the walls in the rooms with a brush and a rag. It is very important to thoroughly wash off the detergents used with clean water, otherwise the soap components may impair adhesion when applying primer and putty.
3. Dry. Drying is not needed only when using cement putty.
4. Prime. Applying a primer will increase adhesion during puttying, make the connection stronger and more durable.

After the primer has dried, the base is ready, now you can dilute the putty powder, as indicated in the instructions. It is necessary to dilute in a small amount, as the mixture thickens quickly.

It is necessary to putty the wall with a thin layer, applying the composition with a rubber spatula and evenly distributing it over the surface. If the cracks or dents are large, then you do not need to try to repair them immediately - it is better to wait for the applied mortar to dry, prime again and repeat the leveling. The number of putty layers applied during leveling is not limited. It is only important to apply each subsequent layer after the previous one has dried and do not forget to use a primer.

It is a mistake to believe that the use of moisture-resistant putty mixtures is a waste of money and you can get by with conventional compositions. After a couple of years in the kitchen or in the bathroom (on the facade this will happen within a year), the decorative finish is deformed and loses its attractive appearance. It will need to be replaced. It is worth calculating the cost of the cost of moisture-resistant putty and the cost of premature repairs and conclude that it is more profitable to purchase.