Sanding parquet boards. Parquet polishing - proper care of parquet flooring. Do-it-yourself parquet grinding - stages of work

Many owners have wooden floors in the form of parquet. Such floors need to be maintained in a certain way and parquet polishing is integral part such care. The floor covering, from whatever material it is mounted, is subject to constant wear and tear. After some time, the parquet ceases to please the eye, which means that it should be polished.

Such a technological operation, along with everyday wet cleaning will make the floor attractive and durable. How often this needs to be done depends on the degree of load on the floor.

With moderate mechanical loads, it is enough to carry out 1-2 polishings per year, and under conditions of increased loads, the frequency of parquet processing depends on the degree of surface wear and can be carried out at least once a month. These can be cafes, bars, canteens, etc. These are the establishments where the parquet floor is subject to everyday wear and tear.

Why you need to polish your parquet floor

The parquet board has a factory coating with oil or varnish, which has a certain impact on its performance. The oil coating does not contribute to the closure of the pores, which allows dust and dirt to accumulate in them. This negatively affects the appearance of the floor covering.

Therefore, additional processing of the parquet is required. Although lacquer coating more durable, it also needs to be improved. In addition, the top layer of wood loses its characteristics due to aging.

Seam joints are especially vulnerable to dust or dirt, so parquet sanding is the only way to parquet floor have an attractive appearance.

Parquet polishing methods

The modern construction market has a wide selection of polishing products. It is so large that it is difficult to make a choice in favor of one or another polishing agent.

Polishes are divided into the following types:

• glossy;
• semi-gloss;
• matte.

The following brands of polishes deserve attention:

• BRILL– polish neutral color designed for polishing surfaces coated with ADESIV lacquer. The cost of this product is within 18 USD. for 1 liter
• HG polish- produced in the Netherlands and costs 14 USD. for 1 liter
• Dr. Schutz Polish(Dr. Schutz) - a universal polishing agent from a German manufacturer. Glossy or matte polish is packaged in jars with a capacity of 0.75 liters and costs 23 USD. for 1 piece

The type of polish depends on the initial treatment of parquet boards, as well as its cost. Since everything must have economic feasibility, you should choose products that have a favorable ratio of quality and price. Such characteristics are possessed by polishes produced on a water basis. These polishes have specifications semi-glossy products.

Such materials have several advantages:

• ease of use;
• dries quickly;
• ecological cleanliness;
• the constituent polishes create an attractive glossy surface.
• low price.

To determine how this type of polish is suitable for the floor, you need to cover a small area. If the coating holds well, it means that it can be used.

What you need to know when polishing parquet

Polishing parquet board requires strict implementation of technological operations, depending on certain conditions:

• Room area. Different equipment is used for different areas. The larger the polishing area, the more difficult the equipment has to be used.
• Degree of surface contamination. This factor affects the use of detergents.
• The top covering of a parquet board. Depending on this indicator, wax is applied or not applied. See also: "".

parquet polishing technology

How to sand parquet with your own hands so that it looks attractive and lasts a long time.

1. Pick up a vacuum cleaner and remove all dust, then remove the remaining dust with a damp cloth.
2. Wash the base with water and detergents.
3. Let the floor dry well.
4. Gently spread the polish over the entire surface of the parquet with a mop and a soft cloth. In this case, the polish cannot be diluted. The consumption of the product is about 20-25 g per 1 m 2.
5. The applied layer should dry for 12 hours.
6. After that, you can start the polishing process. If polishing does not give the desired result, then the operation can be repeated, but it is advisable to apply the product perpendicular to the first layer.

If, before applying a layer of polish, the base is waxed, then the quality of the final result is higher and you do not have to polish the parquet again. This is more about parquet boards, originally opened with oil.

If you want to polish a small room, then this operation can be done independently. The main thing is to follow the instructions that are indicated on the package. Then the parquet floor will always have an attractive appearance and a long service life.

Parquet is a piece floor covering, therefore, in the process of laying several hundred planks, it is impossible to achieve an absolutely even canvas.

For this, special processes have been developed - scraping and grinding. The same methods are used for the restoration of old parquet.

Their main purpose is to bring the finished parquet floor to the ideal.

Before varnishing a parquet floor, it must be sanded, that is, in fact, the coating must be polished to a “perfectly smooth” state. With the help of the same processing technique, the remnants of the old paintwork process, dirt, minor defects, scratches, weak wood fibers that “rose” during laying or scraping the floor are removed.

The secret of an excellent grinding is the gradual reduction of the grit of the tips. First, coarse processing is carried out, then finer. This approach allows you to achieve excellent results even on surfaces in very poor condition.

Do-it-yourself sanding of parquet is not necessary in the following cases:

1. When the gaps between the planks of the old floor are more than 7 mm. Grouting and bringing it back to normal is an incredibly time-consuming job, and no one can guarantee that after a few months this coating will not deform. For such cases, it is recommended either complete replacement, or re-laying the canvas with the processing of each die and the use of adhesive mixtures.
2. Strong abrasion of the most frequent places of walking (corridors, passages between rooms) or deep scratches, chips, as well as furrows gnawed by woodworms. It is better to first replace the damaged area, and then sand the entire floor.
3. The parquet was flooded with a lot of water and swelled, mold and fungus appeared. Replacement treatment only.

Necessary materials and tools

As a rule, before the owner of the house, who decided to restore or mount the parquet floor, the question arises on his own - how to polish the parquet? There are two ways: manual and machine. The first one is very laborious, lengthy, not too costly. This is hand sanding.

In this case, you will need the following materials for grinding parquet:

1. Various-grained skin in rolls (from 40 to 120 units). The amount depends on the cultivated area.
2. The holder (grater) for an emery paper plastic or wooden. It is better to choose with an ergonomic handle, otherwise the hand will quickly get tired.
3. Manual scraper (scraper) for removing old paintwork, which is a steel plate bent at an angle of 45 °, mounted on a wooden or plastic clamping handle.
4. Respirator mask for protection respiratory tract from dust.

But rarely anyone uses manual processing, they prefer the second method - machine. All because of the availability of equipment, because what you can’t buy, you can rent at affordable prices.

For rough pre-treatment of parquet or any wooden floors (groove board, parquet board, engineered solid wood), a drum-type parquet belt sander is required.

It is also used during the restoration of the parquet floor to remove old paint and varnish coatings and is used when simultaneous sanding and sanding of the parquet is needed.

Available in two versions - with a single-phase (220 V) and three-phase drive (380 V). Modern models equipped with a dust bag. The cost of the unit depends on the profile: household units can be purchased at a price of 6,000 rubles, professional units - from 90,000 rubles.

Fine grinding of parquet boards and parquet is carried out with single- or three-disc surface grinders with abrasive paper wheel nozzles with a grain size of 120 to 340 units.

This is an exclusively professional equipment, it is used for fine polishing of a wooden floor before painting and after applying the putty mass, as well as for intermediate polishing of the base between layers of paint and varnish coatings. The price starts from 60,000 rubles.

Angle grinders for parquet (“boot”) are designed to work in hard-to-reach places for large units (under radiators, in corners, near door frames).

Attachments-circles with Velcro are used, grain size - from 40 to 400 units. Equipped with fabric bags for collecting dust on swivel handles.

The construction vacuum cleaner is used for dedusting the surface and / or attaching to grinders that are not equipped with built-in pumps.

Ready putty or liquid is needed to prepare a tinted putty mass for leveling minor defects.

Do not forget about accessories and consumables - abrasive belts or circles, scissors, spanners for fixing drums on grinders, steel or silicone spatulas.

All equipment can be rented at reasonable prices. So, a small grinder for parquet rental will cost from 800 rubles per day, large machines - from 1500 rubles per day with a deposit of 20,000 rubles.

Work technology

Parquet sanding work includes preparation, deep/coarse sanding, fine finishing, defect filling and fine sanding. Let's consider all stages separately.

Preparatory stage

Freshly laid parquet should be inspected for minor defects (loose knots, loose or weakly glued planks), damage (chips, cracks). All these shortcomings are easily eliminated with a putty mass or wood glue.

Doctors do not recommend using bituminous mastic for gluing a massive board. It is better to use special adhesives without phenol and formaldehyde.

All hardware and other protruding elements must be sunk into a tree by 3-4 mm so as not to damage the drum of an expensive machine.

Sanding old parquet is a more complicated process, since almost every plank needs to be checked for integrity and fastening. Damaged elements are replaced, weakly glued elements are re-glued. After finishing work, you need to vacuum the entire coating and wipe it with a damp cloth.

Rough grinding

Before starting work, it is desirable to adjust the downforce of the drum and its uniform fit. This is done using a special screw and wheel balancing.

An abrasive with a grain size of 40 units is loaded into the drum and deep grinding of the parquet floor along the parquet fibers begins. Lateral movement is allowed on turns. For the "herringbone" processing is carried out diagonally, for the palace or wickerwork - crosswise, for the art - round with a twist in a spiral.

Drafts should not be allowed. Therefore, it is advisable to close the windows in the treated room.

As abrasion occurs, the abrasive material must be replaced with a new one.

After completion of work, you need angle grinder walk in a circular motion around the corners and hard-to-reach places. The grain size of the nozzles is the same - 40 units.

fine grinding

It is carried out using a flat grinder. It removes all the bumps, scratches, minor defects. In this case, circles with a grain size of 60 to 120 units are used. It turns out that the parquet is brought to an ideal state in 3-4 passes. Discs need to be replaced as they wear out.

All hard-to-reach places again processed with a “boot” with appropriate nozzles - from 60 to 120 units. After completion of work, the floor is vacuumed and wiped with a damp cloth.

Puttying

Defects of the restored floor are corrected with a ready-made colored wood-like putty (Belinka, Helios, Tex). If it is possible to purchase a special putty liquid, then it is better to make the mass yourself. In this case, a perfect match to the tone of the parquet is guaranteed.

It is necessary to take into account the fact that the varnish “burns” the wood a little. Even after varnishing transparent composition the floor darkens by 1-3 tones, so it is preferable to use homemade putty.

A hill of fine-grained sawdust is poured onto the floor, poured special composition, is quickly stirred with a stainless steel spatula and evenly distributed by rubbing movements over the entire parquet. Drying time - up to 24 hours.

Fine grinding

To finally bring the parquet to the ideal, it is necessary to work out again with the help of a surface grinder with a circle, grain size from 120 and above. Some professional varnishes require pre-treatment with nozzles from 240 and above. The movement of the unit is in the direction of the fibers.

After completion of work, it is again necessary to vacuum with an industrial apparatus and rinse with a damp cloth. After that, the floor is primed and varnished in 2-4 layers. Between 1 and 2, intermediate sanding is desirable with a surface grinder with a nozzle grit above 160 grit.

How to choose grinders

Belt grinders are not purchased for frequent use, but their choice must be approached responsibly.

In this case, you need to pay attention to the following parameters:

1. Purpose. Household grinders are compact (up to 10 kg), inexpensive, the size of the working surface is up to 10 cm. They are used for primary processing in small areas. More than 10 sq. m. experienced master with excellent vision. Professional units are voluminous, weight - up to 100 kg, belt width - up to 25 cm. They are used for both coarse and fine grinding. The weak point is the rubber glued to the drum. It is easy to damage it with a nail sticking out of the floor, a wire rod.
2. Power. Simple cars consume up to 1 kW, professional - from 2.5 kW and above. Of course, the more powerful the machine, the faster the grinding.
3. Functionality. There must be an RCD, a gearshift lever, special restrictive rollers that allow you to process parquet close to the wall without fear of touching the baseboard.
4. Ergonomics. The front cover should be hinged to ensure easy assembly and disassembly of the drum and skins. Clamps should provide a good tension of the tape
5. Build quality and performance. The device must have an even coating without chips and streaks, the gaps between the parts are minimal, the fasteners are strong and reliable.

The price plays an important role here, but if you are going to do this all the time, then it is better not to save. For one-time work, you can use rental equipment.

Video - parquet sanding various types grinders:

Laying parquet is the first procedure on the way to getting a beautiful floor. Additionally, you will need to carry out a lot more work, such as leveling, grinding and varnishing.

Sanding parquet with your own hands is, in principle, a simple procedure, but you will need to take into account a number of factors. In this article, we will take a closer look at this procedure and talk about sanders for parquet.

The difference between grinding and sanding

Scraper removes chips

Today there are quite a lot of equipment and tools for surface treatment. To begin with, it is necessary to identify the main differences between scraping and grinding.

Scouring - manual polishing of parquet with scrapers. It is used for chip removal.

Grinding, in turn, is performed using special equipment. Depending on the tool setting, it can machine the surface with different parameters.

For specialists, the first stage of parquet finishing is called scraping, and further work is called grinding.

Keep in mind that there is no special equipment for scraping, just some grinding tools are sometimes used for scraping.

parquet sanding technology

For grinding use nozzles with fine grain

The grinding procedure consists of several stages. These include:

1. Cyclevka. With the help of a drum or belt type grinder, the parquet is scraped.
2. Grinding. For this procedure, it is necessary to use grinding equipment with fine-grained nozzles. In difficult to access areas, processing is carried out using angle grinders.
3. Final polishing. Using surface grinding equipment, a flat surface is created.
4. Treatment with varnish and antiseptic.

Types of grinders

How is parquet polished? There are many types of grinding equipment. They differ in design, characteristics and, accordingly, the price. Next, we will take a closer look at each type of grinder, determine the strengths and weaknesses of the tool.

Drum grinders

The drum type parquet sander is the most common solution.

With it, you can perform both scraping and grinding the surface. The design of the product is distinguished by its simplicity and reliability.

The package includes two types of grinding drums - centrifugal and roller.

With the help of such equipment, it is possible to process wooden parquet in three directions.

It is easier to process large surfaces with a belt machine

Such a tool is used to process large areas with a rougher coating. Working with such equipment is quite simple, thanks to a well-thought-out design.

A belt sander can have different power, and the higher it is, the more surface can be processed without stopping.

The belt grinder is equipped with a special abrasive belt speed controller. It can be easily dismantled and installed a new one if necessary. High-end models use automatic belt centering.

A diagram of the belt grinder can be seen below.

Angle grinders

Used for finishing hard-to-reach places. The main element in the design is the grinding disc. The new models are equipped with the following functions: speed control of the device, protection against accidental switching on and others.

There are many manufacturers of such devices. The most famous are: Bosch, Sparky, Metabo and others.

Disc machines

This device is mainly used for finishing parquet. Three-disk and single-disk device perform finishing.

Models released different sizes and with different fittings. This allows for good maneuverability.

Such devices can be used as a replacement for angle grinders.

Vibrating machines

This device is quite versatile.

Such equipment is surface grinding. The versatility of the device will allow you to make even a rough primary finish. The work is carried out with gentle movements.

Consumables for such equipment are abrasive sheets with varying degrees of grit, coated meshes and grinding cloths.

Eccentric machines

This device combines the principle of operation of a grinding wheel and a vibrating machine. The result is a high-quality tool that will allow you to perfectly process the parquet.

The output can be adjusted using the diameter of the vibrating circle. The higher its value, the better the processing quality will be.

An important parameter is also the speed, the higher it is, the rougher the grinding will be. For parquet, it is better to use the minimum speed indicator. The varnish that covers the surface of the parquet is extremely difficult to tolerate high temperature. For a detailed life hack on how to choose a grinder, see this video:

Many devices are equipped with a dust bag, which can significantly reduce pollution, but not get rid of them.

parquet sanding process

How to sand parquet? Do-it-yourself sanding of parquet is a rather long procedure, which is carried out in stages.

Parquet preparation

Before work, you will need to take furniture out of the room in advance. Then a careful inspection of the parquet for the presence of any defects is carried out. To ensure a quality surface finish, we recommend tapping each parquet plank.

If the sound is deaf, then the bar has peeled off, and an empty space has formed under it. This can be easily fixed. You will need to drill a small hole and use a syringe to pump a small amount of glue into it. Then, using a heavy object, press down on the bar and let the substance dry.

The surface will need to be washed well, get rid of screws or nails. Otherwise, you risk damaging the abrasive skin.

Sanding tools

Use the finest grain at the end

For self-treatment of parquet, you will need the following tools:

1. Sander for parquet with the possibility of scraping. The device is quite expensive, but if necessary, you can take it for a while. With it, the main area of ​​\u200b\u200bthe floor will be processed.
2. Tape or corner device for working in difficult to access areas.
3. Manual cycle. It is used for scraping hard-to-reach areas.
4. Sandpaper. Keep in mind that the smaller its number, the more grainy it will be.
5. Putty for wood. Suitable for hole making.
6. High quality parquet varnish.
7. Vacuum cleaner for removing dust and other small contaminants.

For such processing, it is recommended to use belt-type equipment with sandpaper No. 40.

Using such a tool, you can process the main part of the parquet, while the distance from the wall should be approximately 10 cm.

It is necessary to use tape or disk machines along the walls.

Keep in mind that the use of manual grinders to finish the entire surface of the parquet is highly discouraged. This can lead to unevenness.

The main purpose of this treatment is to get rid of the old coating and level the floor. Grinding is first done along, and then across.

In this case, it is extremely important to observe the skin. If it is heavily worn, dark spots will form on the parquet.

To check the floor, you will need to use a special building rule. Irregularities should not reach 2 mm.

putty

After sanding, it is necessary to putty. The solution is selected according to the texture and color of the coating. The most common option is a water-based acrylic mix. A metal spatula will help to process the holes.

Finishing grinding

For final sanding, use sandpaper No. 120

After the putty mixture hardens, final grinding is carried out with sandpaper No. 120. In this case, the pressure on the floor will need to be reduced. This can be done using a special screw on the equipment.

The direction of grinding should match the previous work. As a result, you will get a smooth parquet. Next, you need to get rid of dust, for this a high-power vacuum cleaner is used. For detailed recommendations for sanding parquet, see this video:

All these procedures will not take you more than 6 hours.

Lacquering finished coating

Varnish the coating at a warm temperature

Varnishing consists of the following procedures:

1. The primer acts as the first layer. It will significantly improve adhesion for further processing.
2. After applying three layers of varnish. After each layer, grinding is carried out with a special diamond mesh.
3. The final coating is a glossy gel. It will help to fix the varnish on the parquet.

This completes the parquet polishing procedure. As you can see, sanding the surface is quite simple.

The main thing is to choose the right tools.

If you are new to the construction business, it would still be better to seek help from a professional team.

Wooden parquet - the most reliable option floor covering. It is not surprising that it has been consistently popular for many years, especially among connoisseurs of everything natural. But over time, the floor, lined with parquet, loses its attractive appearance. But there is one way to restore its former attractiveness, which will help get rid of all scratches, stains and other traces of violent life. We are talking about sanding or sanding parquet. Moreover, it is not necessary to use the services of specialists, you can handle it yourself. Let's take a closer look at how do-it-yourself parquet grinding is performed, what equipment you will need for this.

When should you sand?

First you need to find out when you need to do grinding, and when - there is nothing to save and it's easier to just replace the parquet. In order to assess the degree of wear of the parquet, clean it from dust and dirt. It makes sense to do grinding when:

• Small scratches, cracks, claw marks from pets and other defects are visible on the parquet.
• Separate planks dried out and gaps appeared between them.
• The polish has lost its luster and has become dull.
• The planks loosened and began to creak.

When will grinding not save the day?

In some cases, grinding does not make sense:

• When the parquet is very dry and the gaps between the planks are more than 5 mm.
• The floor was heavily swollen after the flood.
• If the surface is worn too much in places.
• If there are insects in the tree.
• If there is mold. In this case, you need to completely remove the old parquet, lay a waterproofing film, and only then re-lay a new coating.

What is needed for looping?

How to sand parquet floor? You can do the grinding manually using a cycle. This is a metal plate with a sharpened and curved edge. But such a process will be very laborious and will not justify itself.

It is better to rent special equipment. The scraping process consists of several stages, for each of which you need to use your own type of equipment:

• Drum-type sanding equipment will remove deep layers of your old coating.
• A single-disk or three-disk surface grinder will cost you dearly. This multifunctional device is used for fine sanding before tinting or varnishing.
• The type of equipment, affectionately called “Boot”, will not interfere with you, which will help to polish all hard-to-reach places.

In addition, you will need:

• Sandpaper of different grits.
• Putty of the same tone as your coating. It will be needed in order to close up all the bumps and cracks.
• You also need a powerful vacuum cleaner to remove all the debris later.
• For the final step, you need a good, quick-drying polish.

Choosing equipment

When choosing equipment for floor scraping with your own hands, pay attention to the nuances:

• Such equipment consumes power from 1 to 2.5 kW. Not every wiring in the house can withstand this. Especially if you are scraping in a country house.
• Choose devices where you can easily and quickly change the sanding belt.

Important! If you have walnut parquet, then choose equipment with dust collectors for work. Dust from such parquet can stain the walls, and it will be difficult to clean them.

Preparatory stage

Before you start sanding the parquet with your own hands, you need to prepare the room. For this:

• Move out all the furniture you can. If something cannot be taken out, then cover these things with a film to protect them from dust.
• Clean the entire parquet from debris and dirt.
• Tap all the slats. If a dull sound is heard somewhere, it means that there is a void under the board, you need to get rid of it. Drill a hole in the plank and fill the entire space with glue. This can be done with a syringe.
• Nails must be removed or their heads sunk into the tree.
• Dismantle the plinth.
• Stock up on a respirator, thick gloves and noise-protective headphones.
• Cover doorways with wet sheets. This will prevent the spread of dust.

Sanding parquet

Now we will describe directly the process of updating the flooring itself, because to admire its beauty and be satisfied with the quality natural wood can be for a long time.

How to sand parquet with your own hands?

• Fill the machine with the coarsest sandpaper. Grinding is done first along the room, then across. The goal is to remove the old varnish and make the surface even.

Important! Monitor the condition of the sander. Change it on time. Heavily worn sandpaper can ruin the parquet.

• After such rough processing, scratches and bumps remain. To remove them, continue sanding, but with fine-grained sandpaper. Work is carried out in the same way - up and down.

Important! Do not forget about hard-to-reach places, such as corners. Here you will come to the aid of "Boot" or a manual cycle.

• Now the parquet needs to be puttied. To do this, select the putty by color.
• When the putty hardens, final grinding is needed. Slightly loosen the pressure of the grinder on the floor. This is done with a screw, which is found on any hardware.

Important! After this grinding, the coating should be perfectly smooth. You can check this by simply running your hand over it.

• Now remove all debris and dust with a powerful industrial vacuum cleaner.

Parquet varnishing

Polished parquet must be varnished. Before you start varnishing, you must close all the windows in the room so that there are no drafts. The varnish is applied with a roller. The varnish dries quickly, so we advise you to do it very quickly. If the varnish dries unevenly, the procedure will have to be done again:

1. First, a primer is applied.
2. Then varnish is applied in three layers. Each layer must dry properly.
3. The last layer is applied glossy varnish, which fixes the result.

What are varnishes?

Let's see what types of varnishes the modern market can offer us:

• Polyurethane varnishes. Elastic, heat-resistant, UV-resistant. Not afraid of moisture and household chemicals. But such a varnish glues the planks together.

Important! If water gets into such a varnish during the varnishing process, it will begin to foam.

• Waterborne varnishes. This - New Product On the market. After the water evaporates, it hardens. It does not release harmful chemicals.

Important! Not suitable for very cold rooms.

Particularly parquet. Although the parquet is durable and unpretentious, periodically refreshing its surface does not hurt.

Do-it-yourself parquet sanding tools

Hand grinding tools and equipment

The machine method of grinding is as fast as possible, efficient, but too expensive. Therefore, if with in cash it’s bad to rent equipment, you can solve the issue of scraping the floor with a manual scraper.

On wooden handle This tool has a metal plate, sharpened on one side and serrated on the other. It is so convenient to cut off a layer of old varnish, but the hand gets tired quickly, and the short handle of the cycle does not allow you to take a comfortable position for work. Therefore, grinding is best done in an automated way, using a manual cycle only in those corners that are difficult to process with a grinder.

Among the advantages of a manual cycler is the absence of dust and the ability to remove a good layer of wood from the surface. Another way to scrape the floor at no extra cost is with an emery cloth. It is carefully cut to the size of the foot and attached to the shoe sole, which rubs the floor. This is also a rather laborious, but quite acceptable way.

Grinding machines - types, tasks

Full-fledged scraping is carried out in several stages, and each of them requires a certain type of fixtures and equipment. Consider them:

• PShMBT - drum type parquet grinder - is used for deep processing of any type of wooden surfaces. On the territory of the former USSR, such machines are produced in the Russian Federation and in Ukraine. The device is equipped with a drum and a pump that collects all the waste generated during operation into a special collection bag. Domestic grinders have a significant drawback - the presence of rubber, which is glued to the drum part. If the abrasive is weakly clamped or the machine hits a nail that is sharpening from the floor, the rubber is the most weak point which is damaged first. The cost of equipment - from 1300 dollars and more.
• PShM - surface grinders equipped with 1 or 3 discs. The Germans are considered the leaders in the production of such machines, their Lagler Trio costs about 10 thousand dollars, and such expenses justify themselves. PShM is used for grinding floors from massive boards, preparing the floor for tinting or toning, interlayer polishing for varnishing, for applying oil. Typically, such equipment is purchased for the professional activities of construction and repair companies. Imported PSHM are able to demonstrate filigree work in the process.
• A boot is an additional tool for grinding hard-to-reach places. Boot-shaped nozzle allows you to scrape wooden surface in the corners, under the batteries, along the edges around the perimeter. The unification of such machines allows you to use parts from different manufacturers and change abrasive nozzles. Boots are equipped with bags to collect dust and waste. Such machines are produced both on the territory of the former USSR and in Germany.
• An industrial dust collector is a heavy-duty equipment that works on the principle of a vacuum cleaner. The surface after scraping is covered with a layer of dust, which must be removed by industrial machines, otherwise varnishing will become impossible. A layer of lacquer or other tinting agent will not be able to spread evenly over the uncleaned wood.

List of additional tools:

• scissors for cutting emery cloth and keys for fixing abrasive materials on the drum;
• sandpaper (used as a consumable. Depending on the scraping stage, you will need a canvas of varying degrees of graininess - from 60 to 120.);
• putty (selected in color close to wood, or it can be made from the liquid component and sawdust of the finest fraction, scraping waste.);
• varnish (oil) at the rate of 5 kg per ten square meters. We recommend paying attention to Fobro, Resident, LOBA, Flow and other manufacturers;
• rollers and brushes for uniform coating of the surface with varnish (oil);
• spatulas - preferably rubber, for flooring with putty;

Quantity Supplies calculated according to the size of the room. Experts recommend making a margin of about 10% of the calculated value.

Stages of parquet sanding:

It is quite difficult to sand old parquet by hand, but with the use of modern equipment it is quite a feasible task. Even if you are going to resort to the help of professionals, understanding the order of work will allow you to control the process of their implementation more efficiently.

Sanding preparation

First, it is necessary to assess the scope of work and, most importantly, their feasibility. After all, if the parquet can be characterized by the criteria indicated at the beginning of the article, then it can only be updated if it is completely replaced.

On preparatory stage the room is freed from furniture, skirting boards. Work is underway to strengthen the dies, eliminate the creak, and replace individual components. The floor must be checked for protruding nails or fasteners. The protruding elements should be sunk into the surface by 2-3 millimeters. The floor is vacuumed before the main work.

Equipment selection

Depending on the area of ​​\u200b\u200bthe room, the depth of grinding, a grinding machine is selected. Please note that the weight of the equipment will be at least 70 kg. For work you need: a special suit, earplugs and a respirator.

Scraping parquet

Produced with closed doors and open windows. Abrasive paper is put on the drum part, taking into account what type of paper is needed:

• No. 16 - cleans the floor from paint or varnish;
• No. 24-40 - to remove paint and the surface of the tree;
• No. 60 - for deep grinding.

We describe other important points:

• Directions for grinding - from the far right corner to the lower left, and across, further manipulations are performed in a spiral from the center.
• Attention! The sander should only be manipulated along the grain of the wood. Exceptions can be only for short turns of the device.
• The beginning of work should be done from the far wall, moving towards the most passable areas. From dust collectors, waste can be moved into a PE bag.
• Attention! It is possible to raise and lower the PSHM only when it is on, otherwise there will be a height difference on the floor.
• It is important to keep the pressure on the surface uniform so that the layer removed from the parquet is the same over the entire area. As the abrasive wears, it should be removed and a fresh blade installed.
• After 1 sanding, it is necessary to use a “boot” and emery cloth # 40-60 to polish nooks and unsanded “spots”.
• Sanding works are carried out until the floor surface is in perfect condition, until it becomes uniform in level and color.
• Surface grinder performs final fine work - 3-4 times -, in during which bumps, ruts and scratched places are eliminated with abrasive from No. 60 to 100.
• The cycled parquet is vacuumed industrially. Then the gaps are treated with putty using rubber spatula if there is such a need.
• The last step in the main work will be sanding over the putty with sandpaper No. 100 to perfect smoothness.
• Finishing the floor, which is once again cleaned of dust and dirt after grinding, is carried out using oil or varnish applied in 3-4 layers with a drying period of 4 hours after each application. You may need another sanding step after the first coat.

You can watch the whole process in this video:

Having learned useful information and having received comprehensive instructions on the correct execution of portrait polishing, you will be able to perform these works without resorting to the services of construction and repair organizations. This will cut your costs and allow you to sand your floor in a do-it-yourself manner.