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Correct paint calculation is challenging task even for professionals. Despite the fact that paint consumption standards for metal are quite accessible to every user, required amount The composition in each specific case may constantly vary. (Fig1).

Factors influencing paint consumption rates for metal:

Paint quality;

Surface condition;

Coating method;

Ambient temperature;

Humidity level;

Presence of draft or wind;

And many other nuances.

Technologies

Corrosion protection for metal surfaces
First, let's understand the meaning of the word itself - corrosion. The literal meaning when translated from Latin means corroding

Paint BT 177: characteristics and application
BT 177 paint, the characteristics of which are specially selected to protect metal structures and other products from the influence of the atmosphere and aggressive environments on chemically active surfaces of ferrous metals and other materials

Hameraite metal paint. Description and Application
The surface on which Hamerite metal paint is applied not only does not require cleaning from rust, but also does not require preliminary priming

Quick-drying paint for metal. Description and Application
Today on construction market you can purchase quick-drying paints for metal in regular packaging and in aerosol cans

Fireproof paint for metal. Criterias of choice
Application of fire-retardant thin-layer intumescent paints to the structure is effective and modern method protection

Aerosol paint for metal. Description and Application
Aerosol paint for metal of the first and second types is applied to a clean, dry, pre-sanded base

Modern primer-enamel for metal is used to protect and paint various metal surfaces. It is designed to cover both clean and rusty objects. The enamel protects a coating with a thickness of densely adherent rust up to 100 microns.

Primer enamel for metal "ANTI-KOR 3 in 1" anti-corrosion

It has the qualities of an anti-corrosion primer, decorative enamel and a rust converter. The main purpose of this paint is to cover surfaces that cannot be completely cleaned of rust. For example, this applies to very large objects of irregular shape.

Compound

The composition of primer-enamel includes pigment suspensions, fillers in epoxy resins, organic solvents and various targeted additives. The main active ingredients of enamel are stabilizers of products formed as a result of corrosion, as well as corrosion inhibitors. These substances form a waterproof and chemically resistant coating on the surface to be painted.

Positive qualities of primer enamel

• quick drying;
• high resistance to salt water and adverse atmospheric factors and mineral oils;
• resistance of the enamel-coated surface to large temperature changes (from -50 to +100 degrees);
• the presence of high-quality anti-corrosion pigments that prevent further progression of corrosion;
• high adhesion to metal, which does not require the use of a primer;
• high quality dispersion pigments providing excellent decorative characteristics;
• ease of operation;
• Possibility of application by pneumatic spraying;
• low consumption, which ranges from 80 to 120 ml/m2 depending on need;
• high painting performance;
• Possibility of painting at temperatures down to -10 degrees.

Rules for using primer-enamel to reduce consumption

First you need to calculate how much paint is consumed per square meter of area

Before using paint, you need to calculate its consumption on the surface to be painted. To do this, you need to know the enamel consumption rates per 1 m2, which are indicated by the manufacturer.

Immediately before use, the primer-enamel should be stirred well. Next, surface preparation is carried out, which includes cleaning the metal surface from dirt, dust and a layer of rust. Also, if necessary, the surface is degreased.

If metal coating was previously painted with oil or alkyd paint, then it is better to clean it until matte appearance. In addition, in order to further reduce paint consumption, experts recommend doing a test paint job. This procedure will help you see places of peeling and swelling, and, if necessary, remove them.

It must be remembered that enamel primer for metal or wood cannot be applied to a surface that was previously painted with a nitro-containing paint and varnish coating. To reduce enamel consumption, it should be applied at temperatures from -10 to +30 degrees. As a tool, you can take a regular brush or roller. However, the most economical method Application of white enamel is considered to be pneumatic spraying.

Before starting painting using this method, it is recommended to dilute the enamel using special solvents or xylene. With their help you can wash tools or random stains. It is advisable to apply the enamel in two layers, leaving intervals between them of at least an hour.

After applying the primer enamel and drying it, any type of paint can be applied to the surface. If all these rules for applying primer-enamel are followed, the consumption will be minimal within 80 ml per 1 m2, which is the most profitable from an economic point of view.

Scope of application of white enamel on metal:

• painting of fences, metal structures, garages and other objects that are operated in harsh atmospheric conditions;
• painting rusty surfaces of cars, such as fenders, underbody and so on.

Thus, primer-enamel is a reliable coating for metal structures with a layer of rust. This enamel will provide maximum protection against corrosion and create a primer layer for subsequent paint application.

I must say that all standards depend directly on the factors under which oil paints are applied. And by the way in different situations these meanings can be completely different. Let's immediately look at what consumption standards exist that are used by the majority, both generalists and inexperienced beginners.

PF-115 paint

On average, about 110-130 grams of color mixture are required to apply one layer. Various factors that you manipulate can either decrease or increase these numbers. To calculate average spending oil paints by one square meter, consider these points:

1. What is the viscosity of paints and varnishes?
2. What is the condition of the surface for painting?
3. What tools are used to apply the material - these can be brushes, rollers and a spray gun
4. What kind of work is being done, internal or external?

The increase in waste of oil paints is due to the fact that there are losses associated with external factors. For a little comparison, I’ll tell you that when painting the surface inside a house, you can use more paint per 1m2 than when painting outside, if the weather is calm and dry. But if the weather outside changes dramatically, then the material consumption may even double. Water-dispersed on acrylic base, oil and water-based paints have different costs. Today I will talk about the PF 115 oil mixture and the rates of consumption of such paint per square meter.

Standards for wasting enamel

PF-115 paint and its consumption per 1m2

LKM PF 115 is used both in external and internal processes. This is, by definition, an enamel paint, which is mostly used for metal objects. If you read the description of the material, you will notice that it has a number of excellent properties:

• Not afraid of negative atmospheric influences
• Moisture resistant
• Protected from UV rays
• Not afraid of the wind

But for these properties there is small nuance, the paint receives all its excellent characteristics only after application and completely dry surfaces. But when applied, it is subject to all of the above influences and, of course, in order to avoid incidents it must be protected as much as possible. Metal enamel PF 115 will be consumed per m2 in larger quantities if application occurs in windy and sunny weather.

The consumption of enamel on metal depends on the color you choose, and so I decided to make a small and understandable sign:

If painting is done in bright sun, then prepare for the fact that the consumption per 1 m2 will increase greatly due to the evaporation of the enamel. I don’t want to talk about specifics, since there are cases when the indicators literally double. Therefore, if you do not want to spend money on purchasing paint, then adapt to the weather. If you look at the table, then simply divide all the m2 data by two and get the area that will be painted in bad weather conditions.

Paintable surfaces

Paint consumption PF-115

PF 115 enamel for metal, can be used for galvanized iron, as well as ferrous or non-ferrous metals. It is the surface being painted that determines what the consumption per m2 will be. Usually the norm ranges from 100 to 150 g/m2. When carrying out work, make sure that the surface is well prepared; it must be perfectly smooth, since the enamel will show all the flaws.

In order to save a little paintwork and varnish, it is worth using primers for adhesion and putty to eliminate wall defects. Pay attention to the color of the metal that will be painted later. The consumption of PF 115 may depend on it, since the intensity of the original color depends on the number of layers applied.

Apply each layer using a roller or brush, and if you need to paint in 2 or more layers, you will have to wait until the previous one dries. Usually one layer dries within a day. By the way, if you paint with a brush, then the consumption of material automatically increases, since the tool literally absorbs the mixture. In the case of a roller, everything is much simpler, so think about purchasing this particular tool. But if, taking into account all the factors, paint consumption is still very high, then pay attention to the paintwork material itself. Perhaps you are using a low-quality and cheap composition. Pay attention to the manufacturer, instructions and expiration date of the product.

Buy enamel in specialized stores, look at the quality certificate and never give preference to low-cost paints. Typically, it is precisely these mixtures that lack the necessary correct painting, qualities and properties.

What are the consumption rates?

Paint consumption rates depend on certain factors under which painting occurs. The amount of enamel per m2 can vary significantly. Most masters and beginners use standard standards.

On average, PF 115 consumption per square meter is from 110 to 130 g. Associated factors can increase or decrease consumption. To calculate the cost, you need to take into account the viscosity, the condition of the surface to be painted, what tools are used for application, where we apply it (inside or outside).

The increased consumption of PF 115 paint per 1 m2 may be due to external factors. If the weather is calm and dry, the amount of paint consumed when painting the outside will be less than painting the same surface of identical material inside. But if there is wind, the weather changes significantly - consumption increases. Excellent for painting metal.

One layer can take from 100 to 180 g with a thickness of 18 - 23 microns. From this we can conclude that a kilogram of paint is enough to paint a surface of 7 - 10 m2. If you use colored pigments, you need to understand that the material consumption will be greater. The paint dries completely after 24 hours. Can be dried for 1 hour using drying at a temperature of 100 - 110 degrees.

If we paint in bright sun conditions, we need to prepare for the fact that the consumption per square meter will increase significantly due to evaporation. These figures could more than double. Therefore, if you want to reduce enamel consumption, adapt to the weather.

Possesses unique characteristics, can be used for painting galvanized iron, non-ferrous and ferrous metals. Depending on the surface to be painted, there will be an indicator of material consumption per square meter. It is necessary to level the surface because the enamel will show even the smallest flaws.

To save paint and varnish materials, it is better to use a primer for adhesion, as well as putty to eliminate defects on the walls. Pay attention to the shade of the metal that will soon be painted. The paint consumption also depends on this, since the intensity of the color affects the number of layers that need to be applied.

Each layer must be applied using a brush or roller. It may be necessary to make several layers, then you need to wait until the previous one dries. When painting surfaces with a brush, the amount of paint will increase as the tool absorbs the material. A roller will save money, so if possible, use it.

Features of choosing the composition and calculating the required volume

In the process of deciding on the feasibility of one or another option, one should take into account not only the specifics of the work, the location of the object (inside or outside the buildings), but also the norms for paint consumption on metal structures. Let's consider all the nuances that need to be taken into account.

Selecting a solution for staining

The retail chain offers several formulation options, which we will consider in more detail.

Each of them has its own characteristics that should be taken into account:

• Oil paints are not used so often, although previously they were almost the only option. Over time, they were replaced by more advanced solutions, but even today they are used for budget finishing, low price– the main advantage of compositions based on natural drying oil, but due to their not very high strength, it is not recommended to use them for outdoor work.

The calculation of paint consumption for metal structures indicated on the packaging allows you to save money - the larger the container, the lower the price

• Alkyd compounds are a more advanced option for finishing and protecting metal. This type compositions can be used for finishing both indoors and outdoors; the paint has a number of advantages: durability of the coating, a rich range of colors and ease of doing the work yourself. All these factors have made it the most popular option among buyers, but there is one big drawback: if work is carried out in conditions of high humidity, whitish spots may form on the surface.

These paints are distinguished by the brightness of their shades.

• Acrylic-based options are an even more advanced solution and can be used both indoors and outdoors, and the coating can withstand temperatures up to 120 degrees, which makes it possible to use it for painting radiators and exhaust air ducts. Such paints are much more reliable than oil and alkyd paints, but their cost is much higher, which, however, is not surprising, because good products do not come cheap.

Acrylic – highly durable synthetic material, providing high reliability indicators

• If you need the highest degree of protection, then it is better to pay attention to two-component polyurethane compounds, which provide a high degree of protection and resistance to aggressive chemical influences. The cost of such compositions is high, but they are worth it, and the instructions for preparing the solution are required to be studied: any violation of the proportions worsens the characteristics of the coating and significantly reduces its service life.

Polyurethane is the most reliable material of the new generation

Advice!
If necessary painting small structures It is better to purchase paint in an aerosol - this will simplify the work and allow you to complete it much faster.

Determining the required volume

Another important point– paint consumption on metal structures. Of course, if you need to paint a gate, post or other small object, then this issue is not important, but if we're talking about about large volumes, then any mistake can lead to significant costs. (See also the article Paint for metal fence: peculiarities.)

A storehouse of useful knowledge

Very useful information can be found in volume 2 of the edition " Major renovation buildings. Estimator's Handbook", released in 1991.

There is a special table in which the paint consumption per ton of metal structures is indicated; for convenience, the most important indicators from the table on page 256 are provided:

• If it is necessary to paint bindings of special profiles, then 75 kilograms of paint will be needed per ton.
• Structures containing various steel profiles – 23 kilograms.
• In systems with a predominance of sheet and universal products - 19 kilograms.
• Systems in which the corner predominates - 27 kilograms.
• If most of the elements are channels and beams - 29 kilograms.
• Sheet steel with a thickness of 2.5 to 4.5 millimeters - 24 kilograms.
• Sheets over 5 millimeters thick – 19 kilograms.

Imported manufacturers most often indicate consumption per unit of weight, while domestic ones indicate consumption per unit of area.

Paint consumption per 1 m2 of metal structures depends on the following factors:

• The color of the composition: the lighter it is, the more composition will be required for ideal coverage of the surface. So, if for white enamel the average norm is 110 g/m2, then for black enamel it is only 60 g. This factor is always worth keeping in mind, since this is where mistakes are most often made.
• The application method also has great importance: using a spray gun allows you to save a significant amount of paint due to a uniform layer, while when working with a roller this figure will be greater, and painting with a brush involves the highest consumption.
• Texture and features of painted products: why smoother than the surface and the fewer various bends, angles and other structural elements, the lower the consumption. A complex structure can increase paint consumption up to two times.
• Be careful when working: a layer that is too thick can cause large overspray, while the strength of the coating is reduced and the properties deteriorate.

Remember!
The higher the quality of the paint, the better the hiding power and the lower the consumption.
Therefore, cost savings will ultimately lead to high consumption, and ultimately the costs will be higher when using a cheap formulation.

The sprayer is the most economical option applying paint

When purchasing any paint and varnish material, you can quickly make a calculation required quantity, since the manufacturer indicates all necessary information on the package. But, it must be emphasized that paint consumption will be individual for any type of plane. Only specialists can make the correct calculations and determine paint consumption rates for metal. Detailed information can be found in the publication below.

We take into account factors

To carry out independent calculations on the amount of paint consumption for metal, you need to pay your own attention to the following key factors:

• quality of the coloring matter;
• metal surface condition;
• paint coating technique;
• air humidity and temperature;
• drafts or air currents;
• other differences.

It is also necessary to pay attention to another number of indicators; paint consumption depends on them. The conversation is primarily about the covering power of the composition, which is very often expressed in g/m2. This indicator will indicate how many paint and varnish material will be able to close the previous layer. A large number of Today's products can give the result that you want to get already with the first layer of coloring, or at most the second.

The instrument used for staining is also considered important in this matter. A well-chosen brush can ensure economy and uniform application of paint on metal. The best option For many types of paints, it is worth calling a brush with real bristles. But it is not suitable for water-based paints and varnishes. What parameters affect the quality of the paint coating tool?

1. Wide handle.
2. Excellent thickness.
3. No nylon based winding.

Choose the right brush

The hiding power of the paint composition is inversely proportional to the consumption rate.

Paint consumption parameters for metal

The object to be painted may be made from various metals, for example, colored, black or galvanized iron. This parameter is very important when using oil and alkyd substances. The condition of the plane is also of great importance: smooth and even metal without obvious signs deformation will automatically increase the quality of the paint coating.

There are a couple more crucial points to remember:

1. Base color: to obtain light color without gaps, you will need to paint in several layers. For example, approximately the rate of paint consumption per 1 m2 white will be approximately 110 g, and black - 60 g.
2. Paint coating method: The spray gun is considered very beneficial and distributes equally, but is not suitable for every type of paint. Paint consumption with a brush and roller will be many times greater, and drips may also appear.

Consumption depends on color

When using paint sprayers, you buy a measuring jar, thanks to which it will be much easier to determine the paint consumption per 1 m2.

To reduce paint consumption, the surface is primed or puttied in advance. This will make it possible to avoid drips and uneven application of the layer.

Losses

Indoors closed type consumption is less

It must be remembered that during work it is also necessary to take into account the expected losses of paint and varnish material, which will also affect the quantity the right paint. For comfort, you can use the following average indicators depending on the place where the painting is carried out:

• up to 5% – on clean air in the absence of wind;
• 5% – in closed premises;
• 20% – in windy weather.

Selection of paints for metal

Choice of colors

When selecting a paint and varnish material for painting a metal surface, you should pay attention to only two large groups:

1. Alkyd based paints. For its part, there is a division into two subgroups - these are oil compositions (their basis is considered to be drying oil) and enamels.
2. Water-based paints based on polyacrylate.

The latter are favorites because they have more positive qualities:

• the layer that has already been applied is considered durable and strong;
• do not fade or change for a very long time;
• there is protection against rust;
• can withstand high temperatures;
• environmental friendliness and non-flammability.

For internal covering When using paint, choose acrylic compositions, as they are much safer for health and do not have a pungent odor. If you need to carry out external work, you can choose enamels.

Alkyd-based paints maintain a temperature of no more than 80º C. While for acrylic types this figure reaches 120º C.

Popular paint brands

Famous dye

The choice of metal paints presented in specialty stores is wide, but there are three brands ahead.

1. Tikkurila. Has excellent wear resistance and excellent handling various types fats and oils. Necessary for both internal and external work. In the first option, 1 liter is enough to cover 8–10 m2 with paint, and in the other – 10–14 m2.
2. Hamerite. The difference is that it is possible to paint a metal surface with rust without prior priming and cleaning. 1 liter of paint in 1 layer will cover 8–9 m2.
3. Novbytkhim. Today's primer is enamel. In addition to decorative purposes, the paint will provide a layer of protection. For 1 m2 in 1 layer you will need from 80 to 120 ml of paint.

Look carefully at the indicators indicated by the manufacturer, but you also need to remember the factors that affect consumption.

Metal painting should be carried out in accordance with the technology; otherwise, a coating can be obtained Bad quality with drips and gaps.

For PF 115 enamel, there are special consumption rates, as for other types of paint applied to the surface.

But, in the process of working with a surface, various factors arise that influence the amount required material for painting.

How to stay within your budget and calculate correctly enamel consumption PF 115 per 1 m2, we will understand further in the article.

Application of PF 115

Main advantage PF 115 enamel in its versatility. Experts classify this substance as a paint and varnish for use on all surfaces. That is why it has earned particular popularity in the building materials market.

It is possible to combine enamel with other coating agents, such as primer. After application, the coating is not subject to spreading or smearing.

It forms a dense film with a smooth finish.

The name of the enamel begins with the abbreviation PF, which stands for pentaphthal or alkyd-based resin.

This kind used in work:

• external type with finishing;
• for covering surfaces various types: metal, wood or plastic;
• for carrying out work in the interior of the room.

This type of enamel withstands high atmospheric loads such as snow, rain and the effects of low and elevated temperatures. That is why it is widely used both in home painting and in external work.

The application of enamel to the surface to be coated can be done using an ordinary brush, dipping or pouring. Spraying is also allowed if a special apparatus is available.

In the composition of the substance contains the following components:

1. Pentaphtali, which experts classify as polymer substances.
2. Resins, produced in various, including modified, ways. They allow you to speed up the drying process of the surface.
3. Half-dried and resins with special composite mixtures in small quantities.

You may be interested in Tikkuril paint consumption per 1 square meter.

Material consumption rates per 1 square meter

PF 115 is able to lie flat in both external surfaces. It is often used for carrying out metal work.

If you carefully study the properties inherent in this particular enamel, you can find out that it has such advantages as:

Substance consumption one layer per sq. a meter of surface varies from one hundred to one hundred and eighty grams.

It has been noted that when covering a product in two layers and with a thickness of 30-40 microns, the enamel will be about 90-130 grams per square meter.

A jar with a weight equal to one kilogram can be used for seven or ten square meters. surfaces. From this calculation you need to purchase material.

Factors affecting consumption

When purchasing PF 115, it is important to remember that consumption per square meter is taken into account with the participation of several factors:

• viscosity feature of the product;
• estimated number of layers to be applied to the surface;
• painting conditions, which mean the place where the enamel application process will be carried out;
• the color chosen to be applied to the product also affects consumption. The least economical option is white enamel, and one of the lowest cost colors is black.

All of the above characteristics really give the coated surface advantages, but it should be noted that they do not work if the enamel is not dry.

It is important to take care of a surface that has not completely completed the drying process.

If the technician applies on a windy or hot day, then the consumption of consumed material will increase significantly. This will happen due to strong evaporation of the enamel.

If the temperature reaches too high, the flow rate can be almost doubled. Therefore, it is important to choose a day for enamel coating with cloudy or cool weather.

Temperature, acceptable for carrying out such work, should be in the range from +5 to +35 degrees Celsius.

Using a regular brush in your work will imply lowest consumption facilities. If the master uses airless spraying, this will significantly affect the amount of composition spent.

For pneumatic spraying paint consumption can be doubled.

For metal surface The ratio used is: a layer of primer mixture and an enamel coating on top of it. Brick and concrete products must be coated at least three times for complete impregnation.

Calculation example

Let’s assume that the length of one wall is eight meters and the other is six meters, while the ceiling height in the room is two and a half meters.

When making calculations, it is important to indicate what type of surface is intended to be covered. In our example, this is a wall with plaster.

It turns out that consumption for walls is 7.8 liters. Per square meter - 0.1 liter.