How to properly sand walls after puttying. Sanding walls after puttying - necessary tools and step-by-step execution Sanding walls with a belt sander


The wall and ceiling sander makes sanding easier and faster. You can putty very carefully, but all sorts of defects will still remain on the surface: stripes from the corners of the spatula and grains of sand, sagging, transitions between putty different times in sections. After painting, all these defects will become especially noticeable.

The Makita belt sander is suitable for rough surface processing

How the tool works

The working “body” of any grinder is a plane with attached abrasive paper. Paper can be attached in two ways.

  1. Clamp - found on most household-grade models. The clamp looks like a kind of latch with a spring. For models with a clamp, you can make “clothes” from sandpaper yourself and thus save on consumables.
  2. “Velcro” - models with it are more expensive, but for them you do not have to cut the abrasive yourself.

All types of sanders provide dust removal. This could be a vacuum cleaner outlet or a dust collector. Many models have both a dust collector and an adapter for a vacuum cleaner. The ability to connect a vacuum cleaner is a very useful option because it allows you to increase the operating time without cleaning the container, and this increases the sanding speed.

Types of grinding machines

Tape

A belt sander can prepare the surface for further, finer sanding. It is not suitable for already puttied surfaces, but it can be used to remove it from walls and ceilings old paint along with a layer of putty. Household ones are relatively cheap, but are designed only for short-term use. A professional belt sander can work in the most difficult conditions.

Orbital eccentric

Used for the most delicate work. The sole of the eccentric machine moves along a complex trajectory, thanks to which it can leave behind an almost ideal surface.

Random orbital sanders level almost perfectly

Flat vibrating

Some models of surface grinders reach the level of orbital grinders, but in general they work more coarsely. But PShM is cheaper, just like consumables to them. The “clamp” fastening exists specifically for this type of tool, and for LSM and ESM you have to purchase expensive branded Velcro tapes.

Ceiling sanding rules

You can start machine sanding walls or ceilings when the putty is completely dry and hard. This happens no earlier than a day after applying the last layer.

Before starting work, you need to inspect the walls and ceiling and look for irregularities and protrusions. This operation is best done using side lighting with a flashlight or portable lamp. Irregularities will cast shadows.

Another way is to place a long ruler against the wall and illuminate it from the opposite side. Irregularities can be detected by light rays penetrating into the gaps.

Connected to Vario-Giraffe WST 700 VV Plus construction vacuum cleaner will not allow the room to drown in dust

All detected defects are immediately marked with a regular pencil. In this way, a kind of “map” of the surface will be compiled. If deep depressions are found, they will have to be additionally puttied.

The finishing layer of putty is very gentle, so when working with it, you just need to hold the tool without applying much force to it. It is very important that the working surface is completely adjacent to the wall, and that the sandpaper is strictly parallel to the plane of the surface being processed. Use circular movements with even pressure to move over the marked areas until they become level. If you press unevenly or skew work surface, then new stripes and irregularities will appear.

Safety precautions

Sanding is the dustiest operation in repair work ah, so during it you must protect your eyes and respiratory organs with a respirator and tight-fitting goggles. To prevent other tools and building materials from becoming covered with a layer of dust, it is better to take them out of the room in advance.

You need to take care of the safety of movement with a power tool in your hands. A cluttered or poorly lit room is dangerous in this sense, and working in it can lead to an accident.

Many professional models have an additional extension handle

Grinders, like any construction power tool that produces sparks, should not be used in the presence of flammable dust, vapors or liquids. Before connecting to the network, the switch must be in the “off” position. You cannot be distracted from the process, so children and pets must be removed from the premises in advance.

Separate question- electrical safety. The plug must fit into the outlet and must not be modified in any way. Original forks serve as a guarantee of electrical safety. Adapters cannot be used for grounded machines.

Important! Never operate a power tool with the cover removed.

If foreign odors, sparks, or strong noise appear, you should immediately turn off the tool and contact service.

Thematic video

In the video you can see how the Bosch PEX 300 sander copes with the task.

A sanding machine for walls and ceilings provides quick and high-quality results without significant physical effort, so in case of a large volume of work, it makes sense to spend money on its purchase

The grinding process causes discomfort for many, even experienced specialists. After all, this is a monotonous, painstaking, noisy, but mandatory operation. Requirements for finishing works, which have been developed to date, are especially strict regarding the smoothness and evenness of the planes.

High-tech coatings with their thin layers will only emphasize the unevenness of the base. But even if thicker sheet materials are used, sealing the joints always ends with sanding. To ensure a perfectly smooth base, the sanding machine for walls and ceilings must be selected accurately.

Ceiling sanding and wall surfaces by using special tool can be done by both a professional builder and a home craftsman. From all the variety of tools, each one is the one that best meets the assigned tasks and scope of work.

There are three types of grinders:

  1. tape;
  2. surface grinding;
  3. eccentric.

Experienced craftsmen who specialize in grinding have all the listed grinders in their arsenal of tools. However, most of them are not needed for household work.

Draw machines

The tool got its name from the working element - an abrasive tape, the opposite ends of which are glued together, forming a ring. This sander for walls and ceilings allows you to remove a layer of several millimeters. Also, the tool can easily make a rounding, remove old varnish, stains left by contact of moisture with iron.

This wall sander works with polymers, wood, metal and even mineral building materials. However, it has one advantage that easily turns into a disadvantage - high speed. Due to this feature, the surface being treated may become scratched. Only someone else can fix the situation. grinder for walls and ceilings.

Vibration devices

A surface grinder or vibrating machine for sanding walls and ceilings is something between the first and third types of tools. It is ideal for those cases where it is necessary to carry out the final treatment of surfaces with zero curvature before they are treated with paints and other finishing materials.

The device has a large working surface, which makes it possible to use it in a room with a large area. The vibrating tool is quite popular, especially among home craftsmen.

There are several reasons for this:

  • affordable price;
  • equipment elements are easy to purchase;
  • The geometric features of the sole make it possible to handle angles of any complexity.

The working part of the apparatus is a plate that performs reciprocating movements. In this case, the amplitude is insignificant. The engine installed in it has a power that ranges from 150-300 W. Although there are models whose power reaches 600 W.

A few more advantages:

  1. lightness and compactness;
  2. relatively low amplitude of the sole stroke, which allows for careful but effective grinding.

The sole of vibrating machines can be of two options:

  1. standard;
  2. mini.

The first option is suitable for large rooms. However, if the area is small, it is better to give preference to mini-models.

The ideal sole is one made from an alloy of magnesium and aluminum. Cast options are also considered convenient to use.

A separate version of vibration machines are devices equipped with a platform that resembles an iron in its features. They are small in size but have excellent maneuverability. These models are ideal for working with difficult surfaces.

Orbiters

Models that are in demand for processing high quality. The sanded material is carefully polished, leaving no scratches or other damage. Despite such delicacy, the performance of the tool is not inferior to vibrating models.

Vibratory grinders for walls and ceilings are most often used by car painters and carpenters. No one can compete with them in terms of processing volumetric, profile and curved objects. However, due to the peculiarities of their structure, vibration devices cannot cope with corners and small recesses.

A grinding machine is a tool that allows you to solve a large number of problems. It’s easy to choose the right one from a variety of devices, knowing the main characteristics of each of them.

Tsugunov Anton Valerievich

Reading time: 2 minutes

When carrying out renovation work in an apartment, it is simply impossible to do without sanding the walls and ceiling, to which a layer of putty has previously been applied. After all, leveling walls is an extremely responsible procedure, performed in several stages, one of which is grinding.

In the process of carrying out this work, you can use ordinary grinding stones, both homemade and factory-made. However, this method is associated with a significant investment of time and effort, which can be avoided by resorting to the use of grinding machines.

To ensure ease of use, as well as increase the reliability of these devices, many of them are equipped with special dust collectors, which contain fine dust from putty. Also, for these purposes, connecting a special construction vacuum cleaner to the machine is often used.

Another feature of grinding equipment is the ability to adjust the speed of its moving parts.

Types of grinders

Based on the principle of operation, such devices can be divided into two main types: pneumatic and electric.

The main advantage of pneumatic models is their light weight and relatively low cost. Such devices are often used as professional tool, because even with prolonged work with them, your hands do not get tired and labor productivity does not decrease. These positive qualities are explained very simply - pneumatic devices do not have motors. Their working mechanism is driven by the pressure of compressed air supplied through a hose from a special compressor.

The main disadvantage of pneumatic sanders is the presence of a bulky compressor. In other words, such a tool can only work in a workshop where there is a possibility of supplying compressed air. That is why devices of this type are mainly used in car services and are rarely used for repair work. If such equipment is to be used for repairs in own apartment, then you will have to additionally purchase an expensive compressor.

As for electric models, their main advantage is high mobility. It is almost always possible to connect to the mains, and using an extension cord is absolutely no problem. The disadvantages of power tools include their relatively large weight and overall dimensions, as well as high cost.

If the grinding machine is selected for repair work in a house or apartment and will not be used in the future on large construction sites, then the obvious choice is in favor of electric models.

According to the method of influencing the surface being processed, grinders can be divided into the following groups:

  1. Tape.
  2. Vibrating.
  3. Eccentric.

Let's take a closer look at each of these types of grinding machines.

Tape models

This tool is usually used to process large areas. This type of grinding machine uses an abrasive belt stretched over special rollers, the rotation of which causes constant unidirectional movement of the belt. Tape models have the most high performance in comparison with their counterparts, however, they are not suitable for final polishing of walls.

When choosing a belt-type sander, you should pay attention to the following functions of the purchased device:

  • Automatic belt centering. With the help of special rollers it is held exactly along the axis of movement. This function helps prevent the tape from slipping, so its presence significantly increases the ease of use of this tool.
  • Connection pipe for vacuum cleaner. Almost everyone is equipped with a similar product modern models grinders, but this does not negate its importance in preventing the occurrence of large quantity dust from putty in the room where repair work is being carried out.
  • Additional rollers included in the design of the sander make it possible to eliminate the appearance of so-called dead zones when sanding close to walls.

Vibration models

This is perhaps the most common type of grinding tool. Its most typical representative is the surface grinder. It is a device equipped with a rectangular sole, onto which, using special clamps A sheet of sandpaper having the required grain size is attached. For different types For putty, various grades of sandpaper are used. Another type of such tool is a delta sander. According to the principle of operation, it is no different from devices of the previous type, however, it has a triangular working sole, which can become indispensable when working in hard-to-reach places (for example, when grinding corners).

Eccentric models

In everyday life, these sanders are often called orbital sanders. They received this name due to the peculiarities of the movement of the round working sole, which simultaneously rotates around its axis and moves in an orbit with a small radius. Sandpaper is attached to such a tool using Velcro. The main purpose of eccentric sanders is the finishing of walls on which putty has been applied, as well as their polishing.

There are special representatives of grinding tools that are designed for working with large areas on walls and ceilings. A special feature of such models is the presence of a convenient telescopic handle and gearbox, as well as the ability to install grinding wheels on them large diameter(usually 215 or 225 mm). Sanders for walls and ceilings can be used not only to smooth putty surfaces, but also to remove old ones. paint coatings, as well as for grinding stone or concrete walls. The use of such a tool will significantly reduce the time and labor required for grinding work.

It is worth noting that if the proposed repair does not involve sanding large areas, you may not need to think about buying a sander; it is better to simply rent it from one of the many rental points construction tools. The fact is that the cost of such a device is quite high, so if there is no need to use it frequently, then the question arises about the advisability of extra financial costs.

Choice required type grinders for each case are carried out taking into account the volume and nature of the work performed, the configuration of the surfaces to be sanded, as well as the individual preferences of the person who will perform this work. In any case, the main criterion for the correctness of the choice made will be the final result.

Finishing coatings such as wallpaper and paint, due to their fine structure, transfer even the slightest irregularities of the base of the walls on their surface. Oblique rays of light will always “find” such places and emphasize the unevenness of the base. Therefore, it is very important to know how to properly sand a wall covered with putty. Sanding plaster is hardly worth undertaking. After all, any plaster must be puttied. Only sanding the putty will provide a smooth base before wallpapering or painting the walls. The article tells you how to sand walls after puttying.

Methods for sanding putty walls

There are several ways to sand putty. This is manual grouting of walls after putty and mechanized cleaning of walls.

Manual grouting of putty

Leveling putty surfaces manually is painstaking and time-consuming work. To obtain an ideal smooth surface, you need to know how to sand the putty. The most common method for sanding walls is to use hand grout.

Hand tools

There are several varieties hand tools. These devices are based on a single principle of fastening the grout mesh. These are basically spring clips located on both sides of the device. The back of the grater is covered with a soft polymer pad, onto which an abrasive mesh is placed, securing it on the sides with clamps. Side clamps secure the mesh in a taut state.

Some models have a comfortable handle, and there are grouts with side bends for gripping with the hand. The top photo shows the grout pattern on the lever. This tool does not cause any difficulties in how to rub putty on high fences. In this case, you can do without stairs and scaffolding.

Sanding mesh

In order not to think about what kind of sandpaper to rub the putty with, nets were invented for sanding the putty. Today in trading network You can find nine types of abrasives of this type. The grouting mesh has standard size 105x280 mm.

Based on the quality of surface treatment, there are three types of abrasive materials:

  • A coarse mesh is the material with which you need to grind putty of the starting composition, dry plaster with rough surface defects.
  • The medium mesh is used to cover smaller defects in the coating. The abrasive applied to the material is slightly less than on a coarse mesh.
  • Fine sandpaper is intended for processing finishing putty. After sanding the walls after applying the finishing compound, they move on to final finishing fencing.

The coarse mesh is marked by numbers: No. 40, 60, 80. The brand number can be recognized by the inscription on the mesh itself. Accordingly, the average abrasive has No. 120, 160, 180. The finishing grout mesh has its own numbers: No. 200, 240, 280.

The numbers reflect the grind size of the abrasive substance applied to the mesh. If the number 60 is written on the abrasive strip, this means that the material is intended for sanding putty of the starting composition. If the number is 240, then the abrasive material is intended for cleaning finishing putty.

Hand grouting technique

After you have decided what to sand the walls after puttying, the mesh the desired number tucked into a hand-troweled tool. The putty grater in the worker’s hand moves along the surface of the fence in a circular motion.

Video of sanding putty by hand:

Mechanical grinding of walls

It is advisable to carry out mechanical cleaning of puttied walls for large volumes of work. To do this, several types of power tools are used: a vibrating grinder, an orbital grinder, an angle grinder and a grinding and polishing machine,

Vibrating type machine

Using an electric vibration grinder can significantly reduce operating time and increase productivity. The machine has a movable platform on which an abrasive mesh is attached. When the engine is turned on, the platform oscillates transversely along the wall surface.

There are holes on the platform and on the abrasive mesh. Dust is sucked out through them, which is then collected in a special bag. The dust is discharged through a hose connected to the vacuum cleaner. The vibration amplitude of the platform is about 2 mm. As a rule, this tool is used for stripping finishing putty and for sanding walls. wooden house. Sanding timber walls with such a machine allows you to achieve high quality processing of wooden surfaces.

The disadvantage of such a tool is the rapid accumulation of dust inside the machine mechanism. You often have to open the body of the instrument and clean its inside.

Rotary orbital sander

The rotary machine is equipped with a two-handed grip. Of all the tools of a similar purpose, the tool has the lowest level of vibration. The low profile of the housing allows you to visually control the quality of surface treatment. Under the influence of rotation abrasive wheel, the machine seems to stick to the wall, which makes it easier to control the machine.


The tool is equipped with grinding wheels of various abrasive sizes. The machine is easy to operate and when working with it, there are no special problems in how to rub the putty. By changing the wheels on the tool, you can grind any putty surface.

The only drawback of rotary power tools is that after working with them you have to clean hard-to-reach places, including corners, manually.

Angle grinder

Angle power tools are multifunctional by design. In addition to all types of work, sanding walls made of timber is perfectly done with an angle grinder.

Angle grinders are modern, safe and easy-to-use power tools. They can be used for cutting, polishing and grinding various materials. At correct selection With an abrasive wheel you can quickly polish the walls made of timber inside the house.

Whatever the masonry of the walls from uneven logs in the house, the worker, armed with such a tool, will polish the surfaces of the putty and wooden walls to perfect condition.

Grinding and polishing machine

Machines of this type include tools from Flex. The Flex L 602 VR model is designed for polishing and sanding walls and ceilings. Thanks to the successful development of the design of the unit, the worker in the process of cleaning putty walls will not feel a strong load on his hands and shoulder girdle. The weight of the machine is only 3.3 kg.

A convenient dust extraction allows the operator to work without a respirator, which ensures high working conditions.

The Giraffe Flex model is interesting in that the power unit is mounted on a long air duct rod. This allows the worker to work on high walls while standing on the floor.

The manufacturer supplies the tools along with the tool. personal protection: glasses, headphones, gloves and other attributes.

Machines of this type are equipped with special grinding wheels. When working with a tool, the vacuum cleaner creates negative pressure through an opening in the center of the grinding wheel. The unit is pressed against the wall, which significantly relieves tension in the operator’s arm muscles.

Features of sanding wooden walls

The most famous two options for wooden walls are fences made of timber and logs. The surface of timber walls gives in as manual grinding, and mechanized processing using power tools.

Manual sanding with sandpaper is a very tedious and time-consuming job. The task is made easier by the fact that the timber forms an even vertical wooden plane. It is better to work with such material using a power tool.

Sanding wooden walls made of timber is carried out in several stages:

  • Initially, a rough cleaning of the surface of the walls is carried out using a chisel and other cutting devices. Using a chisel, remove all protruding parts of the surface of the timber. After removing the knots, the recesses are puttied;
  • after this the wood is treated with a coarse abrasive;
  • the timber is finally polished with a mesh or wheel with a minimum abrasive size;
  • the treated walls are primed and covered with paint or varnish.

The outer surfaces of the log house have a pronounced relief of semi-ovals made of folded logs. The logs are cleaned using vibrating machines. In places where logs are longitudinally connected, it is convenient to clean the surface using an angle machine.

When processing wooden walls, vortex waves arise air currents wood dust. Starting work without personal protective equipment is extremely dangerous. Wood dust can enter the lungs and cause injury to a person's eyes.

The top photo shows a clear violation of safety regulations. If the respiratory organs are protected by a gauze mask, then there are no protective glasses.

The owner of the home can choose any method of cleaning the walls from the wall sanding methods described above. It must be remembered that even the most powerful vacuum cleaner will not be able to completely cope with dust, so in any case the worker must be “armed” with all personal protective equipment.

Sanding walls after puttying is necessary measure for wall decoration. Excessive graininess and unevenness of surfaces that remain after puttying as a result of the junction of layers of the mixture are removed. Sanding can be done using a sanding machine, sanding mesh or fine-grained sandpaper. Grouting the walls after puttying is done before covering the surface with wallpaper or treating the walls for painting.

How to sand walls after puttying? For this purpose, special tools are used for grinding surfaces. How to sand the walls after puttying to make the wall as even and smooth as possible:

  • For sanding, a sanding block is most often used. This device acts like a grater with a manual base. The block is equipped with sandpaper or an abrasive mesh.
  • It is better to use a grinder if grouting needs to be done as quickly as possible. The choice of device depends on required power– the greater the power, the faster the grinding will be completed.

How to sand the putty becomes completely clear. Now it is important to decide not on the device itself, but on auxiliary materials. Therefore, the question arises: what kind of sandpaper to rub the putty on and what kind of mesh is needed for sanding the putty.

What kind of sandpaper to use and what advantages are determined here:

  • Is the most convenient option, since grinding is carried out efficiently and quickly, and most importantly without dust. In this case, there is no clogging of the material, and its high wear resistance is maintained. The sanding mesh requires periodic change when active work. The dimensions and quality of the mesh can be determined before purchasing.

  • Sandpaper for grouting putty. Is less a good option, but quite effective. It is better to choose sandpaper with a grain number of 60, 80, 100, and then number 120. It is better to take the material in small quantities, as you should check the compliance. Most often, grit number 60 is suitable. For final sanding of walls, sandpaper with grit number 120 is used.

Sanding putty not only requires special tools and devices, but is also performed in accordance with a certain technique. It is important to carry out the treatment without using a primer.

On video: how to sand a wall after puttying.

How to sand walls

How to sand walls after puttying so that the surface becomes perfectly smooth? It is important to know the technology and methods of how to sand walls after puttying. But first you need to decide on some characteristics of the walls in order to choose what to sand the putty with.

Grouting putty begins with choosing a tool. If the question arises about what kind of sandpaper to do the work with, then you should decide on the degree of processing: the initial grinding is 60 grains, and the final grinding is 120. How to sand the walls of a large room? A machine is best for this, although corners, recesses and depressions will still have to be sanded by hand using sandpaper.

Sanding the walls after puttying is carried out in accordance with the following instructions:

1. First, the most visible irregularities and defects on the surface of the walls are highlighted. What kind of technology is needed for this? A powerful spotlight or lantern that is installed as close to the wall surface as possible. Thus, shadows appear on it from the protrusions or depressions of the putty. These places should be circled with a pencil.

2. How to rub putty correctly? It is better to start cleaning the putty from the corner. You need to move from top to bottom, occupying a strip of about one meter. After processing the designated strip, you should proceed to the next one. The movements should be spiral.

3. The putty on the walls should be sanded carefully, without applying much force. In this case, it is better to use sandpaper. Do not press too hard on the canvas to prevent holes from appearing in the putty. And there is no need to align the recesses with the general level.

4. Cleaning the finishing putty consists of the same steps as the starting one. In this case, polishing is done carefully, but with extreme caution so as not to damage the putty layer. It is better to sand the finishing putty using sandpaper.

To sand walls you do not need to have experience in construction industry. It is enough to adhere to a certain technology that is very easy to learn and apply.

Ceiling sanding rules

How to sand a ceiling after puttying correctly, what tools and methods should be used for this? The ceiling is sanded using almost the same technology as the walls. To perform the work, you should prepare sandpaper. An abrasive mesh may also come in handy.

Wet grinding is ideal in this case. But in this case, the procedure takes much longer, since after each session you should wait until the surface dries.

The ceiling is usually rubbed using a tool such as a grinder. Sometimes the procedure is done manually. How to properly sand the ceiling:

  1. The sandpaper for puttying the ceiling is the same as for puttingtying the walls. First, with 60 grit, and 120 sandpaper as a polishing tool. If you use the surface for wallpaper, then sanding is done thoroughly and completely.
  2. It is necessary to produce illumination, which will highlight all the defects against which the skin will be produced. The grater is carried out along a designated strip from one corner to another.
  3. Secondary putty should be disposed of in the same way. The choice of tool is the same as for the first layer of putty surface.
  4. After this, the ceiling is primed and treated with antifungal agents. It does not matter whether the ceiling will be painted or wallpapered in the future.
  5. To process the corners between the walls and the ceiling, use a tool such as a round sanding block. We use this technology for rubbing protrusions and shaped objects.

In any case, the grout base should be sandpaper or graters in the form of a sanding mesh. If it is necessary to paint the ceiling, it is necessary to carry out the treatment with puttying.

In places where depressions appear, it is necessary to carry out secondary treatment with putty.

Surface treatment after grinding

After surface treatment, further finishing cannot be started immediately. First you need to remove all construction dust, which settled on the walls and ceiling during the grinding process. To do this, you can use a tool such as a construction vacuum cleaner.

You need to walk around the entire perimeter of the surface and carefully remove all dust. If it is subsequently mixed with paint or wallpaper glue, lumps and lumps may form.

The second method of cleaning surfaces from dust does not require the use of a special tool, so it is the most acceptable in many cases, although it is much more labor-intensive. The methods used are as follows:

  1. Use a wide, soft-bristle brush to brush off greatest number dust. You can use a regular broom. The main thing is not to press too hard, since putty is a very plastic building material.
  2. After this, a secondary cleaning method is performed. Wet a rag in cool water and squeeze it well. Run the cloth over the walls and ceiling. Textiles should not fade, otherwise marks and stains will remain, which may subsequently appear through the paper layer or paint.
  3. You need to wait until the putty is completely dry, and only then proceed with further finishing. So as not to blur mortar, the fabric should be slightly damp.

In any case, dust must be removed completely to avoid corrosion of the secondary building materials. You should not use only a rag, as it is almost impossible to remove dust in this way.

After cleaning you need to start further actions: priming and treatment with antifungal agents.

High-quality grinding and further processing before finishing– this is the key to a successful repair. The sanding surface can be several types of sandpaper or mesh.

Sanding after puttying the walls must be done, as this solution will become ideal option for a good basis for repair work. Even if the alignment was initially performed poorly, then with the help of further finishing it is possible to visually compensate for this defect. It is possible to carry out such a procedure, that is, to rub the putty, without the involvement of specialists - independent processing is quite suitable.