KR102686310B1 - Building interior finishing method for using functional inorganic paint for interior painting of buildings - Google Patents

Abstract

The present invention relates to a method of painting the ceiling of the interior of a building using a functional inorganic paint for painting the interior of a building, (a) attaching a reinforcing material to a joint formed by gypsum boards installed on the ceiling in contact with each other, and attaching the reinforcing material to the joint formed by contacting each other with the reinforcing material Puttying the top at least once and then drying it; (b) preparing a functional inorganic paint for interior painting of the building; (c) preparing a diluted functional inorganic paint for interior painting of buildings by mixing and stirring 10 to 15 parts by weight of water for 100 parts by weight of the functional inorganic paint for interior painting of buildings; (d) performing a preliminary coating on the ceiling wall using the diluted functional inorganic paint for interior painting of buildings; (e) applying a top coat on top of the preliminary coat using the diluted functional inorganic paint for indoor painting of buildings, wherein in step (b), the functional inorganic paint for indoor painting of buildings is (b1) ) mixing 41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone; (b2) Provides a method for interior finishing of buildings using a functional inorganic paint for interior painting of buildings prepared by mixing and stirring 31 to 45 wt% of water with the mixed calcium sulfate hemihydrate and the limestone.

Description

Building interior finishing method using functional inorganic paint for interior painting of buildings {BUILDING INTERIOR FINISHING METHOD FOR USING FUNCTIONAL INORGANIC PAINT FOR INTERIOR PAINTING OF BUILDINGS}

The present invention relates to a method for finishing the interior of a building using a functional inorganic paint for painting the interior of a building, and more specifically, to finishing the interior of a building using a functional inorganic paint for painting the interior of a building using only eco-friendly materials to create a comfortable indoor environment during use. It's about method.

In general, for example, when the wall of a house is a concrete wall with cement as its main ingredient, it is known that harmful components such as volatile organic compounds (VOC), formaldehyde, toluene, benzene, xylene, ammonia, and radon are released after the house is constructed. .

In addition, when attaching wallpaper used to beautify the exterior of a concrete wall, an adhesive containing formaldehyde is used to strengthen the bond between the wallpaper and the concrete wall, causing atopy, asthma, headache, indigestion, various bronchial problems. It is known to cause disease.

There is an urgent need to prepare measures to solve these problems.

And most of the solutions to reduce harmful substances generated in the residential environment focus only on the adsorption and decomposition of harmful substances from the concrete wall, and are therefore relatively insufficient to function as a building material.

In addition, there are problems that are fundamentally difficult to solve, such as moisture problems caused by condensation on concrete walls and mold growth problems caused by this.

On the other hand, the interior walls of buildings are sometimes finished with wallpaper or paint on concrete walls, but the walls are also finished with gypsum board, CRC (Cellulose Reinforced Cement) board, MDF, GRC (Glass-fiber Reinforced Cement) board, wood board, etc. After fixing it with nails, screws, bolts or anchors, the board was finished with wallpaper or paint.

These boards are made of materials with certain specifications, and several boards are fixed to the wall or ceiling, so when these boards are fixed, a gap is created between the boards, and it is necessary to paste wallpaper or paint over the boards. To do this, the gap must be closed.

If the gap is not finished, it is difficult for painting or wallpapering to proceed smoothly, and after painting or wallpapering, the board is deformed due to temperature and humidity, and cracks occur in the gap due to shrinkage and relaxation. As a result, the coating layer is lifted and cracks occur.

Methods for closing gaps in such boards include using mesh tape, using woven fabric such as cold yarn, and using paper tape.

Among these, when using the above-mentioned cold sand, after applying adhesive putty work or bond to the gap of the board, scraping the cold sand with a spatula and attaching it, performing putty work several times, and then sanding. It goes through the process of painting, but this method also requires a long process before painting and is not very durable.

1. Method for manufacturing a functional inorganic paint composition of Registration Patent No. 10-2319923 (registered on October 26, 2021) and a functional inorganic paint composition manufactured by the same manufacturing method 2. Ceiling finishing construction method using the functional inorganic paint composition of Publication Patent No. 10-2023-0138092 (published on October 5, 2023)

The present invention was created to solve the above problems. It can simultaneously fulfill the role of a final finishing material for the interior of a building by using eco-friendly materials, is very easy to construct, and can be done with just painting without using cumbersome wallpaper. The purpose is to provide a method for interior finishing of buildings using functional inorganic paints for interior painting of buildings that can be used for final finishing and can express the feel of natural mineral materials or natural texture.

The functional inorganic paint for interior painting of buildings of the present invention to achieve the above object is,

In the functional inorganic paint for interior painting of buildings, which is used to paint and finish the ceilings and walls of buildings,

It is made by mixing and stirring calcium sulfate hemihydrate and limestone (CaCO3) mixed at a certain ratio with water at a certain ratio,

It is characterized in that 41 to 55 wt% of the calcium sulfate hemihydrate, 1 to 15 wt% of the limestone, and 31 to 45 wt% of the water are mixed and stirred.

In the present invention, the painting finish of the ceiling and walls is a diluted functional mineral diluted by mixing and stirring 5 to 15 parts by weight of water for 100 parts by weight of the functional inorganic paint for interior painting of buildings obtained by mixing and stirring. Use paint.

The method of finishing the interior of a building using a functional inorganic paint for interior painting of a building according to the present invention to achieve the above object is,

In the method of painting the ceiling of the interior of the building using a functional inorganic paint for painting the interior of the building,

(a) attaching a reinforcing material to the joint formed by the gypsum boards installed on the ceiling in contact with each other, putting the reinforcing material on the reinforcing material at least once and then drying it;

(b) preparing a functional inorganic paint for interior painting of the building;

(c) preparing a diluted functional inorganic paint for interior painting of buildings by mixing and stirring 10 to 15 parts by weight of water for 100 parts by weight of the functional inorganic paint for interior painting of buildings;

(d) performing a preliminary coating on the ceiling wall using the diluted functional inorganic paint for interior painting of buildings;

(e) applying top coat using the diluted functional inorganic paint for interior painting of buildings on the top coat,

In step (b), the functional inorganic paint for interior painting of buildings is,

It is characterized in that 41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone are mixed, and 31 to 45 wt% of water is mixed and stirred into the mixed calcium sulfate hemihydrate and limestone.

In the present invention, the preliminary coating in step (d) and the top coating in step (e) are performed by an airless spray method, and after the top coating, the total coating thickness is 0.4 to 0.8 mm.

In the present invention, the preliminary coating is applied to a thickness of 60 to 65% of the total coating thickness, and the top coating is applied to a thickness of 35 to 40% of the total coating thickness.

In order to achieve the above object, the method of finishing the interior of a building using a functional inorganic paint for painting the interior of another building according to the present invention is,

In the method of painting the concrete or cement wall inside the building using a functional inorganic paint for painting the interior of the building,

(a) preparing a functional inorganic paint for interior painting of the building;

(b) preparing a diluted functional inorganic paint for indoor painting of buildings by mixing and stirring 10 to 15 parts by weight of water with 100 parts by weight of the functional inorganic paint for indoor painting of buildings;

(c) performing a preliminary coating on the wall using the diluted functional inorganic paint for interior painting of buildings;

(d) applying a top coat on top of the top coat using the diluted functional inorganic paint for interior painting of buildings,

In step (a), the functional inorganic paint for interior painting of buildings is,

It is characterized in that 41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone are mixed, and 31 to 45 wt% of water is mixed and stirred into the mixed calcium sulfate hemihydrate and limestone.

According to an embodiment of the present invention, eco-friendly materials can be used to simultaneously fulfill the role of a final finishing material for indoor walls, finishing construction is very easy, and final finishing can be done with painting without using cumbersome existing wallpaper. , it is possible to express natural texture, such as giving the feeling of natural mineral materials.

In addition, it can implement the functions of humidity control, adsorption, and deodorization by using natural minerals as the main raw material and a mechanism of materials with ultra-fine porosity, and has adsorption, moisture absorptive and desorptive, antibacterial, and anti-mold functions.

Therefore, it is possible to create a pleasant indoor environment and benefit the user's health.

Figure 1 is a flowchart sequentially describing a ceiling finishing method among the indoor finishing methods of a building using a functional inorganic paint for indoor painting of a building according to the present invention.
Figures 2 to 14 are photographs showing the finishing work applying the ceiling finishing method among the indoor finishing methods of buildings using the functional inorganic paint for indoor painting of buildings according to the present invention.
Figure 15 is a flowchart sequentially describing the method of finishing a concrete or cement wall among the indoor finishing methods of a building using a functional inorganic paint for indoor painting of a building according to the present invention.
Figure 16 is a photograph of a finished wall to which an embodiment of the method for finishing the interior of a building using a functional inorganic paint for painting the interior of a building according to the present invention is applied.
Figures 17a to 20b are photos of test reports tested through an example of the indoor finishing method of a building using a functional inorganic paint for indoor painting of a building according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

The functional inorganic paint for interior painting of buildings according to the present invention is a functional inorganic paint for interior painting of buildings that is used to paint and finish the ceiling and walls of the interior of a building.

As described above, the functional inorganic paint for indoor painting of buildings according to the present invention is composed of calcium sulfate hemihydrate (Calcium Sulfate Calcined, or calcined gypsum) and limestone (CaCO3) mixed in a certain ratio with water. and stirred.

In addition, 41 to 55 wt% of the calcium sulfate hemihydrate, 1 to 15 wt% of the limestone, and 31 to 45 wt% of the water are mixed and stirred.

In addition, for example, when painting and finishing the ceiling and walls of the interior of a building such as a house or building where people live or live, 100 parts by weight of the functional inorganic paint for interior painting of buildings according to the present invention, which is mixed and stirred, is used. , Use diluted functional inorganic paint diluted by mixing and stirring 5 to 15 parts by weight of water.

The calcium sulfate hemihydrate or calcined gypsum is a white colored solid, and when mixed and stirred with water, a solid mass is established and is hygroscopic.

In the case of the limestone or calcium carbonate or lime carbonate applied to the functional inorganic paint for indoor painting of buildings according to the present invention, it is a white solid powder and is a high purity crystalline limestone (in the form of calcite) with a high whiteness (93 to 98%). Powdered ground calcium carbonate finely ground to about 44㎛ (325mesh) or less can be used.

Figure 1 shows a flow chart sequentially describing the ceiling finishing method among the indoor finishing methods of a building using the functional inorganic paint for indoor painting of buildings according to the present invention as described above.

Referring to FIG. 1, the method of finishing the ceiling of a building interior by painting using a functional inorganic paint for painting the interior of a building according to the present invention is, first, as shown in FIG. 2, the gypsum boards installed on the ceiling are in contact with each other. Attach a reinforcing material (or mesh tape or cold yarn) to the joint (or gap) formed while performing putty on the reinforcing material at least once (first one putty, second two putty) and then dry. (Step 110)

At this time, the putty is first applied using an acrylic filler for the exterior and a second application is performed using a handy coat for the interior.

Subsequently, as shown in FIG. 3, after sanding, the residue is removed (step 120).

In step 120, sanding is performed so that the putty thickness does not exceed 0.1 mm on the dried surface.

The reason for performing sanding work in this way is that the subsequent painting results will be good.

Then, as shown in Figure 4, prepare a functional inorganic paint for interior painting of buildings (step 130).

In step 130, the functional inorganic paint for interior painting of buildings is first mixed with 41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone (step 131).

The calcium sulfate hemihydrate and limestone thus mixed are prepared by mixing and stirring 31 to 45 wt% of water (step 133).

For 100 parts by weight of the functional inorganic paint for indoor painting of buildings prepared in this way, 10 to 15 parts by weight of water is mixed and stirred to prepare a diluted functional inorganic paint for indoor painting of buildings (step 140).

Next, as shown in FIG. 5, before painting, preparation for the painting work is completed by performing covering maintenance using covering maintenance paper (step 150).

Then, using the diluted functional inorganic paint for interior painting of buildings prepared in step 140, a primer (or primer) is applied to the ceiling, as shown in FIG. 6, and dried (step 160).

In addition, as shown in FIG. 7, on the preliminary painting performed in step 160, a basic painting (or intermediate coating) is applied using a diluted functional inorganic paint for interior painting of buildings, and dried (step 170).

And as shown in FIG. 8, after removing the covering material, finishing work by painting the ceiling is completed (step 180).

On the other hand, the preliminary painting of step 160 and the final painting of step 170 do not use pneumatic pressure, so they are hygienic for workers due to the viscosity of the functional inorganic paint for indoor painting of buildings according to the present invention or the small scattering of the paint, It is preferable to carry out the painting using an airless spray method, which allows for efficient use of paint due to low loss of paint during painting work.

And after performing the top coating in step 170, the total coating thickness is preferably 0.4 to 0.8 mm.

The reason is that if the coating thickness is less than 0.4mm, the coating thickness is too thin and the coating effect is reduced, and if the coating thickness is more than 0.8mm, the coating thickness is too thick, which increases the painting work time, increases the cost of the paint, and reduces durability.

If scratches occur on the ceiling finished with the above finishing method as shown in FIG. 9, putty is applied as shown in FIG. 10 and allowed to dry naturally.

Next, sanding is performed as shown in FIG. 11, foreign substances are removed as shown in FIG. 12, and airless spraying is performed using a functional inorganic paint for indoor painting of buildings according to the present invention and an airless sprayer as shown in FIG. 13. Closing is carried out in this way.

Figure 14 is a photograph showing the state of the ceiling finished in the manner described above.

As shown in Figure 14, the finishing method using a functional inorganic paint for interior painting of buildings according to the present invention provides an excellent interior aesthetic that is comparable to that of existing silk wallpaper or functional wallpaper.

In addition, the concrete or cement wall inside the building can be finished by painting using the functional inorganic paint for indoor painting of buildings according to the present invention using the finishing method described above.

Figure 15 shows a flow chart sequentially describing the method of finishing the concrete or cement wall among the indoor finishing methods of buildings using the functional inorganic paint for indoor painting of buildings according to the present invention.

First, as a preparatory work before painting, preparation for the painting work is completed by performing covering care using covering care paper (step 210).

Prepare a functional inorganic paint for interior painting of the building (step 220).

In step 220, the functional inorganic paint for interior painting of buildings is first mixed with 41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone (step 221).

Then, 31 to 45 wt% of water is mixed and stirred into the mixed calcium sulfate hemihydrate and limestone to prepare the mixture (step 223).

Next, 10 to 15 parts by weight of water is mixed and stirred for 100 parts by weight of the functional inorganic paint for indoor painting of buildings, thereby preparing a diluted functional inorganic paint for indoor painting of buildings (step 230).

Then, a preliminary coating is applied to the wall using the diluted functional inorganic paint for interior painting of buildings (step 240).

In addition, top painting is performed on the preliminary painting using the diluted functional inorganic paint for interior painting of buildings (step 250).

The preliminary coating of step 240 and the top coat of step 250 are performed by an airless spray method, and the total coating thickness after the top coat is preferably 0.4 to 0.8 mm.

And in the finishing method of the ceiling, concrete or cement wall of Figures 1 and 15, the painting construction (or work) uses an airless spray method, and the preliminary painting is 60 to 65% of the total painting thickness (0.4 to 0.8 mm). Apply thickness (0.24~0.52mm).

Subsequently, using the same airless spray method, the top coating is applied to a thickness of 35 to 40% (0.14 to 0.32 mm) of the total coating thickness.

The reason why the thickness of the primer coat and the top coat are different is that, unlike other paints or paints, in the case of the functional inorganic paint for indoor painting of buildings according to the present invention, if the thickness of the primer coat is lowered, the primer coat dries and This is because cracks may form.

Considering the final coating thickness, it is preferable to first apply a primer coating of 60 to 65% of the thickness, dry, and then apply a final coating to the remaining thickness.

Next, after removing the covering material, finishing work is completed by painting the wall (step 260).

And as described above, wallpapering can be done on a concrete or cement wall in a subsequent process that is finished by painting using the functional inorganic paint for interior painting of buildings according to the present invention.

The indoor finishing method of a building using a functional inorganic paint for indoor painting of buildings according to the present invention having the above-described structure is a paint made by stirring and diluting calcium sulfate hemihydrate and ground calcium carbonate with water, and is a functional mineral using only natural inorganic materials. It is a paint or eco-friendly inorganic functional plaster.

Therefore, when an indoor wall is finished (painted) using the functional inorganic paint according to the present invention and then cured, the wall is given moisture-absorbing, moisture-proofing, adsorption, antibacterial, and anti-fungal functions.

Specifically, in the case of the above adsorption function, the functional inorganic paint according to the present invention is classified as a class 1 carcinogen such as benzene, toluene, and formaldehyde contained in buildings and building materials such as cement, adhesives, paints, and flooring. It adsorbs and decomposes pollutants and prevents their release into the air.

And the moisture absorption function adjusts the humidity in the air to appropriately maintain indoor humidity.

In addition, it inhibits the growth of fungi such as colon colon and Staphylococcus aureus.

In addition, in the case of ceiling finishing, the scope of construction using the functional inorganic paint for indoor painting of buildings according to the present invention is possible to apply finishing to gypsum board-finished ceilings such as living rooms, bedrooms, and kitchens of apartments without plastering the ceiling.

In addition, gypsum board-finished ceilings such as classrooms and hallways in educational facilities (can also be applied to existing tex construction sections) and gypsum board-finished ceilings in commercial facilities, office facilities, and medical facilities are also possible.

And in the case of wall finishing, concrete, cement, and gypsum board finished walls (applied with wallpaper wallpaper in the subsequent process) such as living rooms and bedrooms in apartment complexes are possible.

In particular, the functional inorganic paint for interior painting of buildings according to the present invention is white in color, and is therefore very advantageous for interior finishing, such as expression of natural texture.

Meanwhile, in the case of existing wallpapering using silk paper or painting finishing using paint, fine dust such as various chemical particles was generated, benzene and toluene were emitted from the paint, and VOCs (volatile organic compounds) from the wallpaper adhesive were generated. s) and steisen and ethylbenzene were generated from the coating agent.

In addition, formaldehyde and the above volatile organic compounds were generated from veneer.

However, when the interior is finished using the functional inorganic paint for interior painting of buildings according to the present invention, there is an effect of suppressing harmful substances, and additionally, moisture absorption and moisture prevention, adsorption and decomposition, and antibacterial and antifungal effects are generated.

Specifically, first, the moisture absorption and dehumidification properly maintain indoor humidity to maintain comfortable indoor humidity.

And in the case of the adsorption decomposition, volatile organic compounds and formaldehyde, which are first-class carcinogens, can be adsorbed and decomposed.

In addition, in the case of the antibacterial and antifungal properties, it inhibits the growth of fungi such as Escherichia coli and Staphylococcus aureus.

Example

First, a functional inorganic paint for interior painting of buildings was prepared by mixing and stirring 50 wt% of calcium sulfate hemihydrate, 10 wt% of limestone, and 40 wt% of water.

Next, 100 parts by weight of the prepared functional inorganic paint for interior painting of buildings was diluted by mixing and stirring 10 parts by weight of water to prepare a diluted functional inorganic paint.

Then, foreign substances, including sandpaper, were removed from the cement wall inside the building, and the diluted functional inorganic paint prepared above was used to apply preliminary painting (0.3 mm thick) and drying, followed by final painting (0.2 mm thick) and drying twice. did.

At this time, the two coats of coating were performed using an airless spray method using an airless sprayer, and were performed with a total coating thickness of 0.5 mm.

The finished wall surface performed in this way is as shown in the photo in FIG. 16.

Looking at Figure 16, there is no lifting at all on the painted surface, and the white wall has a very natural and warm feeling compared to other existing paints, paints, or wallpaper.

With the interior finished in this way, moisture absorption, moisture prevention, adsorption, antibacterial, and anti-mold tests were conducted.

As a result of the test, first, looking at the moisture absorption and moisture absorption test reports of Figures 17a and 17b, the moisture absorption amount is 103.20g/m, the moisture absorption amount is 77.88g/m², and the average value of moisture absorption and moisture absorption amount is 91.04g/m². , the deviation between moisture absorption and moisture resistance is within 20%.

In other words, as a result of the performance certification, the difference between moisture absorption and moisture absorption is 24.32g/m², and the average value of moisture absorption and moisture absorption is 91.04g/m², so the moisture absorption and moisture absorption effects are excellent.

In addition, looking at the adsorption test reports in Figures 18a and 18b, the adsorption rate is 65% or more, toluene is 28,000 or more, HCHO (formaldehyde) is 6,500 or more, and the accumulated adsorption amount is 7,955 g/m2.

And looking at the antibacterial test reports of Figures 19a and 19b, the antibacterial resistance is 2.0 or more (test method: JIS Z 2801), the antibacterial test (E. coli) - antibacterial power is 5.8, and the antibacterial test (Staphylococcus aureus) - antibacterial power is: 5.9 am.

In addition, looking at the anti-mold test reports of Figures 20a and 20b, the anti-mold resistance is log (CFU) resistance of 1.0 or less (test method: ASTM D 6329), the mold resistance is 1.0, and the mold resistance is grade 0 (ASTM G - 21).

As such, the functional inorganic paint for interior painting of buildings according to the present invention is an eco-friendly inorganic functional paint that satisfies the recommended standards for health-friendly housing construction (Ministry of Land, Infrastructure and Transport Notification No. 2020-368).

In addition, the indoor finishing method of a building using a functional inorganic paint for indoor painting of buildings according to the present invention can implement the functions of humidity control, adsorption, and deodorization by using a mechanism of materials with ultra-fine porosity using natural minerals as the main raw material, and adsorption. It has four functions: moisture absorption, desorption, antibacterial, and anti-mold.

As described above, the present invention has been described with reference to an embodiment shown in the drawings, but this is merely illustrative, and various modifications and equivalent embodiments can be made by those skilled in the art. You will understand.

Therefore, the true scope of protection of the present invention should be determined only by the appended claims.

Claims (8)

delete delete In the method of painting the ceiling of the interior of the building using a functional inorganic paint for painting the interior of the building,
(a) attaching a reinforcing material to the joint formed by the gypsum boards installed on the ceiling in contact with each other, putting the reinforcing material on the reinforcing material at least once and then drying it;
(b) preparing a functional inorganic paint for interior painting of the building;
(c) preparing a diluted functional inorganic paint for interior painting of buildings by mixing and stirring 10 to 15 parts by weight of water for 100 parts by weight of the functional inorganic paint for interior painting of buildings;
(d) performing a preliminary coating on the ceiling wall using the diluted functional inorganic paint for interior painting of buildings;
(e) applying a top coat using the diluted functional inorganic paint for interior painting of buildings on the top coat,
In step (b), the functional inorganic paint for interior painting of buildings is,
41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone are mixed, and 31 to 45 wt% of water is mixed and stirred into the mixed calcium sulfate hemihydrate and limestone,
The preliminary coating in step (d) and the top coating in step (e) are performed by an airless spray method,
A method of finishing an interior of a building using a functional inorganic paint for interior painting of a building, characterized in that the total coating thickness is 0.4 to 0.8 mm after the above-mentioned top painting. delete According to clause 3,
The preliminary coating is applied to a thickness of 60 to 65% of the total coating thickness,
The top painting is a method of finishing an interior of a building using a functional inorganic paint for interior painting of a building, characterized in that a thickness of 35 to 40% of the total painting thickness is applied. In the method of painting the concrete or cement wall inside the building using a functional inorganic paint for painting the interior of the building,
(a) preparing a functional inorganic paint for interior painting of the building;
(b) preparing a diluted functional inorganic paint for indoor painting of buildings by mixing and stirring 10 to 15 parts by weight of water with 100 parts by weight of the functional inorganic paint for indoor painting of buildings;
(c) performing a preliminary coating on the wall using the diluted functional inorganic paint for interior painting of buildings;
(d) applying a top coat on top of the top coat using the diluted functional inorganic paint for interior painting of buildings,
In step (a), the functional inorganic paint for interior painting of buildings is,
41 to 55 wt% of calcium sulfate hemihydrate and 1 to 15 wt% of limestone are mixed, and 31 to 45 wt% of water is mixed and stirred into the mixed calcium sulfate hemihydrate and limestone,
The preliminary coating in step (c) and the top coating in step (d) are performed by airless spraying,
A method of finishing an interior of a building using a functional inorganic paint for interior painting of a building, characterized in that the total coating thickness is 0.4 to 0.8 mm after the above-mentioned top painting. delete According to clause 6,
The preliminary coating is applied to a thickness of 60 to 65% of the total coating thickness,
The top painting is a method of finishing an interior of a building using a functional inorganic paint for interior painting of a building, characterized in that a thickness of 35 to 40% of the total painting thickness is applied.