Metal paint for outdoor use: types of compositions, their advantages and disadvantages

This article discusses such a type of finishing material as paint for metal for outdoor work: the main types of compounds used in suburban construction, their pros and cons, technical and operational characteristics. In the text you can find information that will help you choose the best dye, as well as prices for products in demand.

Metal paint for outdoor use protects the surface from the aggressive effects of precipitation, sun and temperatures

Exterior metal paint: properties of existing formulations

Coloring of metal products is a necessary measure to extend the service life of the material, as well as to preserve its attractive appearance and novelty for a long time. This process is accompanied by some difficulties, and the difficulties affect not the technology of applying the composition itself, but its choice. The dye must have the necessary set of performance characteristics, show resistance to the negative effects of external factors and retain its properties for a long period of time.

Before painting a metal structure, remove the film from the enamel surface and then mix it thoroughly

The following types of dyes are used for processing metal surfaces:

• nitro (NC, aerosol);
• pentaphthalic (PF);
• rubber;
• hammer;
• polymeric.

Each type of colorant has certain advantages and disadvantages, and the inherent performance characteristics allow you to accurately determine under what conditions the positive qualities of the coating will bring the maximum benefit.

Properties of spray paint in spray cans for metal

Nitro composition for painting metal surfaces is produced by manufacturers in the form of aerosol cans. This type of dye is ideal for finishing small items. Due to the fact that the composition is applied to the surface by spraying, the likelihood of the appearance of streaks, which usually accompanies the use of a roller or brush as a tool, is eliminated.

Using paint in a spray can to paint metal objects is the easiest way to get an evenly painted surface without streaks and streaks.

To dilute the paint, it is allowed to use chemical solvents of any brands. To achieve a strong gloss, you need to buy metal paint for outdoor use with a large number in the name. The higher the number, the more gloss. Any tool can be used for application, including pneumatic spray gun and a regular brush. The only exception is rollers with foam rubber coats. This type of material will corrode upon contact with NC.

Interesting fact! Nitro dye is used as a refill for paint markers.

This type of dye is impractical to use for processing large items. This is not only costly, but comes with more disadvantages than advantages.

Advantages and disadvantages of metal spray paints

Consider the disadvantages of nitro dyes intended for finishing metal products:

• low level of adhesion, which negatively affects the life of the coating;
• toxic and unpleasant odor, harmful to human health;
• low indicator of resistance to the influence of ultraviolet radiation;

The main disadvantage of paint in spray cans for metal is the low quality of the coating, therefore this composition is not recommended for use on surfaces that are constantly in contact with atmospheric precipitation.

• fast shade fading in the sun;
• high paint consumption for metal per m2 of the treated area;
• incompatibility with other types of dyes.

Due to the fact that dyes in cans contain chemical solvents, any type of coating of another type is corroded when NC is applied. In addition, the presence of such components becomes a source of toxic and pungent odors harmful to human health. Therefore, nitro dyes can only be used outdoors.

Benefits of nitro dyes:

• relatively low cost (significant savings can be achieved if you buy paint for metal not in a can, but in a can);
• simple application technology regardless of the method;
• the coating dries quickly;
• coloring can be carried out even at low temperatures;
• Removing old paint from metal can be done with a common solvent.

Simple technology for applying nitro dye allows you to effortlessly restore old metal garden furniture

Properties, advantages and disadvantages of external paint for PF metal

Alkyd enamel is intended not only for painting metal. It is versatile and can be used to finish other surfaces. The base of this paint allows it to be used in combination with other types of dyes and primers without fear of bad reaction. To dilute the composition, you can use solvent and white spirit. The use of gasoline is allowed, but in this case the coating will not be glossy or shiny.

Disadvantages of finishing material:

• the coating dries for a long time (at room temperature this will take about a day, and in cold weather, full drying of the dye is impossible);
• low adhesive properties of the material force the use of an appropriate primer;
• poor coating quality;
• under the influence of ultraviolet light, there is a rapid fading of the shade and loss of gloss;
• after full drying, the coating may change color.

Note! By adding coloring pigments to the composition on your own, it is necessary to prepare the mixture with a margin. If there is not enough paint, then it will not work to get the same shade in the second portion.

Painting the surface with enamel should be done only at positive air temperature

Advantages of PF formulations:

• high-quality dye retains its properties for many years;
• a simple application system allows you to do it yourself;
• it is allowed to use rollers with foam rubber coats, since there are no aggressive solvents in the composition that can corrode the tool;
• an extensive selection of colors and the possibility of tinting;
• no need for a primer.

R-4 solvent can be used as a means for removing paint from metal. They should be used very carefully, as the solution is aggressive and can cause chemical burns.

Properties, advantages and disadvantages of rubber black paint for metal

Rubber paints were invented as an alternative to bituminous compounds. The reason for this was the unattractiveness of the latter. Dyes based on natural bitumen resin form a dense and durable coating on metal surfaces. A similar finish is obtained using rubber compounds with the same properties, but already with attractive external characteristics.

Rubber black paint is easy to apply, so you can use both a roller and a brush for work

On sale there are not only matte rubber paint for black metal, but also compositions of other colors, for example, red, blue, green. These materials have several important advantages:

• high level of protection against external factors of influence;
• resistance to mechanical damage;
• if necessary, the coating can be easily removed by using a liquid to remove paint from metal;
• it can be used as a finish on galvanized surfaces, so the dye is suitable for protecting the roof;
• the composition fits perfectly on any type of surface;
• there is no conflict reaction to other dyes.

When dyeing with a rubber dye with a matte surface outdoors, be sure to use protective equipment, since the mixture is toxic. If the composition comes into contact with the skin, irritation or an allergic reaction may occur.

Rubber paint for metal is a durable and reliable coating suitable for finishing the galvanized roof of a building

There are few disadvantages of rubber coatings, but they are:

• complex application technology;
• not all application methods can be used to paint metal surfaces;
• it is difficult to obtain a uniform coating without gaps, but only under this condition will the dye provide a full level of protection;
• high price.

Varieties and properties of powder paints for metal

The range of manufacturers allows you to buy powder paints for metal in two categories:

1. Thermoplastic mixtures - no chemical transformation of the composition occurs during the formation of the film coating.
2. Thermosetting compounds - the coating is formed as a result of chemical processes.

Helpful advice! Thermosetting compounds are best used for the treatment of metal vehicle parts, since this category of coating is focused specifically on the automotive industry.

Among the advantages of using powder paint, one can note the environmental friendliness and fire safety of the coating.

The price of powder paint for metal varies depending on the type of composition. This type of dyes is presented in a huge variety.

The category of thermoplastic coatings is represented by polyvinyl chloride (PVC), polyvinyl chloride (PVC), polyamide and polyelyphin (polyethylene, polypropylene) types of compositions.

The category of thermosetting coatings is represented by the following types of compositions:

• epoxy;
• epoxy-polyester;
• polyester;
• polyurethane;
• acrylate.

Due to the economical consumption of powder paint, its use is widespread in large industries.

Why is it profitable to buy powder-type paint for exterior work on metal:

• simple system of use and application;
• high speed of solidification;
• economical consumption (the loss of ordinary dye during operation sometimes reaches 40%, while the powder composition reaches 98% of the treated surface);
• high level of coating strength;
• environmental friendliness;
• durability;
• excellent decorative properties.

Related article:

Exterior metal rust paint and its uses

Types of anti-corrosion coatings, their application, popular brands, reviews and prices. Effective methods of dealing with rust.

Among the shortcomings, one can only note the need to use a separate container for each color, as well as limitations when painting non-standard objects and surfaces at low temperatures. Mechanical removal of the coating is carried out only from wood or plaster. In other cases, chemical agents are used. Docker S4 paint remover can be used.

It is convenient to paint with powder paint on metal using a spray gun or a spray gun

Advantages and disadvantages of 3 in 1 hammer paints for exterior metal work

Hammer effect colorant is considered one of the most durable and resistant coatings. These three-component compositions form a specific pattern on the surface to be treated, reminiscent of forging, made with a hammer.

Benefits of hammer dyes:

• there is no need for preliminary thorough cleaning or priming of the surface;
• high rates of adhesion to metal surfaces;
• resistance to mechanical damage;
• invulnerability to moisture, ultraviolet radiation;
• pronounced texture of the coating allows you to hide irregularities and defects of metal surfaces;
• wide range of colors;
• the coating retains its properties for many years;
• there is no need for frequent renewal of the paint layer.

Metal paint for exterior use may include several components that have an extended spectrum of action.

Helpful advice! It is best to use xylene or a chemical thinner to thin the paint. The use of gasoline is allowed, provided that the composition belongs to the production of a quality and reliable manufacturer. Only in this case the technical and operational characteristics of the coating will not be affected.

Disadvantages of hammer effect coating:

• high price;
• high consumption;
• the application system has certain nuances that complicate the work with some objects;
• it is extremely difficult to remove the old coating.

Average prices of paints for metal for outdoor use

Having decided on the advantages and disadvantages of hammer, rubber, acrylic paints for metal and other coatings, do not forget about the prices. After all, the cost of the composition can influence the choice of material, as well as affect its pluses and minuses.

Average prices for dyes for metal for outdoor use:

Choosing the best metal paint for outdoor use

Of all the dyes previously listed, hammer-effect coatings have the highest performance in terms of basic quality criteria. In terms of external characteristics, the coating has similar features to rubber dyes, since both have a similar consistency. However, these materials have completely different compositions, and a different binder was used for their manufacture.

In order to protect forged products from the effects of atmospheric agents, it is worth choosing the right paint for metal

The significant disadvantages of hammer paint include only the high price. Its use will be profitable only if a small surface is processed, because the application of this composition is accompanied by a high consumption. If, in financial terms, there are no restrictions, then it is hammer paint that can be considered as an ideal option for finishing metal surfaces in the open air.

Important!Hammer paints must be used in combination with the same primer. Provided this requirement is maintained, the service life of the coating will be at least 20 years.

Comparative characteristics of dyes:

The table clearly shows the advantages and disadvantages of various types of dyes according to the main parameters, where 1 is the lowest indicator, and 4 is the highest.

Regardless of the type of paint chosen, the surface should be pre-cleaned from the top layer of rust and dirt

Popular galvanized metal paints for outdoor use

Not every type of dye is suitable for finishing galvanized metal surfaces. That is why there is a separate category of materials intended for these purposes. Moreover, such paints are produced both in the form of a powder, which needs to be diluted, and in the form of a ready-made mixture. The composition, which does not require preliminary preparation, is packaged in cans, buckets and aerosol cans.

According to consumer reviews, Cycrol paint for galvanized metal is the most in demand in this category. Customers appreciate the ease of use and high quality of the coating on any application, including brush, roller and airless.

Zinccomet compositions are no less in demand, which are noted by users as convenient dyes to use with optimal parameters and cost. The only drawback is the only limitation for application to coatings at low temperatures, but most users on the forums consider this nuance insignificant.

Due to its anti-corrosion properties, metal paint is able to protect the roof of a private house from negative external factors

The basic colors are presented in a small number of shades, which, as a rule, include white, silver, black, brown and green. A separate place is reserved for anti-corrosion silver paint for metal, the price of which is more than affordable.

Possibilities of Hammerayt hammer paint for metal

Among hammer coatings, Hameright metal paints from the manufacturer Akzo Nobel are especially popular, which offers customers a lot of advantages:

• protection of metal surfaces from corrosion damage both indoors and outdoors;
• spectacular appearance is provided due to an unusual texture and a variety of colors, including standard and exclusive shades;
• a high level of adhesion even over rust and maintaining an attractive appearance for at least 8 years;
• operating temperature range in the region from -20 to + 85 ° С.

A thin coat of hammer paint can be used to create an interesting effect on metal fittings

Under the condition of a short exposure to high temperatures, the coating will retain its attractiveness (up to + 150 ° C). For at least 5 years, the finish will not undergo any changes in shade under the influence of UV. These and many other benefits have made Hammerayt so popular in the market.

The modern range of paints and varnishes offers hundreds of quality finishes. However, there is no universal composition. When choosing a finish, first of all, you should be guided by the type of material of the surface to be treated, the budgetary possibilities and the advantages that the dye can offer.