Among the compositions that prevent the development of corrosion, there are priming, painting, and enamel primers. They all have the same property, but they have different time drying, color, shade, composition and rules of use.
Before applying any of the above products, the metal surface must be cleaned of rust, dust and dirt, and degreased. The easiest way to do this is with special means, corroding the neigh. The most popular and effective is the Rzhavoed-Universal enamel primer. This composition will simultaneously clean and prime the metal. Among this series there are compositions that color the surface. Therefore, if you want to get a rich color, it is enough to apply a second layer of “Rusteater”.
Which rust paint is best?
A lot of positive feedback from garage owners, metal fences, boats about Hammerite rust paint. It belongs to the category of quick-drying (2 hours is enough), but for a high-quality coating it requires the application of at least two layers. This composition is recommended for use only in warm, not damp weather.
If you don’t have the time or desire to pre-clean the metal, you can use Nerzhamet paint. It is made on the basis of alkyd resins, dries quickly and corrodes rust. But it should be taken into account that when applying this paint to an uncleaned surface, the coating layer will be raised in places. The paint will lie more evenly on prepared and primed metal, which will provide the product with an attractive finish. appearance.
If you need the most a budget option paints for rust, you can buy “Iron Lead”. This product has excellent covering ability. It can be used if you need to quickly bring a garage, fence or anything else into proper shape. “Iron lead” adheres well and, thanks to the thick layer of coating, effectively masks any flaws. But you need to know that in the fight against corrosion it is less effective than the above remedies. However, for a long period of time it will retain the appearance that was obtained after staining.
One of the most expensive and high-quality products in the fight against rust is Alpina paint (Direct auf Rost). It belongs to the category of primer enamels and was specially developed for processing. This paint is different in that it does not contain lead, which is present in many other compositions. It is almost odorless, durable, and has good covering ability. Before applying it, it is enough to clean the metal only from dirt and dust.
To achieve best result it is necessary to select paints not only according to operational characteristics, but also by type of metal and alloys. With the development of the chemical industry, paints based on alkyd and epoxy based with rust converters, with a denser and higher quality protective coating. Metal products are pre-treated with a primer containing zinc compounds to prevent corrosion processes.
There is a wide variety of these compositions on the market, it is important to make the right choice of paint to avoid the problems shown in the video:
Purpose of the article: give an idea about existing types Paintwork on metal, manufacturers and application of compositions in specific operating conditions, help the consumer choose high-quality and effective products.
Characteristics
Modern paint and varnish coatings are the result of numerous studies of compositions in practice after the introduction of various additives into the mixture that improve protective covering. The main physical and chemical characteristics of paints are given in the tables.
| Comparison criterion | Option | Note |
|---|---|---|
| Based on composition | oil (MA) | MA marking indicates use in oils plant origin, in particular natural drying oil. Oil paint is used indoors, as it has poor resistance to seasonal air temperature changes. The peculiarity of the paint is that the layer created does not allow air to pass to the metal surface. It's good for coloring water pipes indoors, but due to the lack of gas exchange (the paint hermetically seals the metal surface), it is necessary to renew the coating once a year, as the layer peels off. |
| Epoxy (EP) | The paint is intended for use on non-household products (car body, oil pipelines, alkali, gas, acid pipelines), since the epoxy resins included in the composition have a toxic effect on the human body. The protective coating can withstand high temperatures without destroying the layer. | |
| Alkyd (PF and GF) | It has a high degree of adhesion and is used for zinc coated metals. The composition is easily applied to form an alkyd film that is resistant to physical and chemical influences. Poorly withstand high temperatures. Suitable for painting galvanized iron (roofing), zinc coated pipes and fittings. | |
| Acrylic (AK) | The composition includes polyacrylates (polymers of acrylic acids) with high heat resistance. Thanks to these polymers, coatings are weather-resistant and resistant to intense ultraviolet solar radiation. The paint can withstand high temperatures without cracking or deforming the layer. Refers to water-based compositions and is non-toxic. Substances that prevent the development of corrosion are added to the composition. Acrylic paint paint heating radiators and metal interior elements to preserve their appearance for a long time (resistant to physical impact). | |
| hammer (ML) | ML – Pigments in a mixture of synthetic resin solutions with the addition of a solvent. The so-called “hammer effect” forms embossed patterns on the painted surface. Hammer paints are used to protect against rust and finishing: fences and gates, garden furniture and metal gratings. | |
| Chemical and physical properties | Viscosity | The viscosity index affects the method of applying the composition to the surface (spray gun, brush, roller). If the viscosity is incorrectly selected, the quality of work and the strength of the protective coating are reduced. Domestic manufacturers indicate the viscosity of the dye in seconds; Imported materials are characterized by a different unit of measurement - DIN. The optimal viscosity of the dye, primer or varnish is usually indicated by the manufacturer on the packaging. Most of the compositions, unless otherwise specified by the manufacturer, are intended for painting with a brush or roller. For a roller and brush, the paint viscosity is 18-22 sec or 30 DIN (usually the composition in cans is already ready for use with this particular tool). Before painting with a spray gun, dilute to a consistency full fat milk, a solvent intended for this paint (50 sec or 80 DIN). |
| Covering power | Covering power is expressed kg/m² or ml/m²; some manufacturers give more understandable values - how many square meters can be covered with a liter of paint m²/l. The properties of the composition to overlap the previous layer depend on this indicator. The higher this indicator, the lower the paint consumption rate. High-quality paints are able to cope with the task in one layer application cycle. One layer for a well-prepared surface has a value of 120 ml/m² or 12 m²/l. | |
| Density | For various surfaces There are own recommendations for paint density. For smooth metals one liter of paint per 14-16 m², for rough metals one liter per 6-10 m² | |
| Drying speed | The drying speed is affected by the base of the composition. Alkyd compositions with light fractions of solvents dry the fastest, a little longer - polyurethane enamels(more viscous), followed by water-based compositions. You will have to wait the longest for oil paint made with natural oils to dry. |
There are standardized designations for all paints. Here is the transcript:
| Designation | Letter and number designation |
|---|---|
| Base (film-forming substance) | MA (oil); PF and GF (alkyd); AK (acrylic); BT (bitumen); KCh (rubber); EP (epoxy); NC (nitrocellulose). |
| Type and application of the composition | 1 – outdoor use (weather-resistant); 2 – indoor application(limited weather resistance); 3 – conservation products for protective work; 4 – water resistant; 5 – enamels; 6 – petrol and oil resistant; 7 – chemically resistant; 8 – heat-resistant; 9 – electrical insulating; |
For example, alkyd enamel PF-115. Letter designation“PF” indicates that the enamel is made on the basis of a pentaphthalic binder, the first number 1 is for external use, 15 is the catalog number. Marking of imported paints and paint and varnish materials differs from the system described above, but the information required by the user must be indicated on the label in Russian.
We invite you to familiarize yourself with the offers of paint manufacturers and the range of the most common compositions. The products of these brands meet quality standards and meet the stated characteristics.
1. Alpina (Germany)
The company's products are characterized by good hiding power and adhesion to the surface, which guarantees an excellent coating that is resistant to physical and chemical influences. The Alpina company is known in Russia as a manufacturer of high-quality premium products.
Impressions from use: When coating products, the paint goes on smoothly and does not run off, as happens with oil-based compositions. Accordingly, the consumption is small and you can focus on its indicator, which is located in the information on the jar label. The rust paint, after application, has a slightly brighter shade, but after 2-3 days it becomes identical to the color specified by the manufacturer. The composition converts rust well, but minimal preparation is required - light surface cleaning and degreasing.
| Characteristics | Alpina Weisslack | Alpina Heizkörper | Alpina Aqua Weisslack | Alpina Aqua Heizkörper |
|---|---|---|---|---|
| Application area | White enamel is used indoors and outdoors. Due to its particularly high resistance, it is especially suitable for use on wooden and metal surfaces subject to constant stress. | White enamel with high hiding power, resistant to high temperatures up to 100 degrees. Used for painting heating radiators and metal pipes. | White enamel is made on water based and therefore can be used indoors for painting metal and wooden surfaces. | Water-soluble enamel for heating radiators and metal products, odorless and dries quickly. Can be tinted in any chosen color. |
| Gloss level | Glossy or silky matte. | Glossy. | Glossy, silky matte. | Glossy |
| Packaging, liter | 0,75; 2,5. | 0,75; 2,5. | 0,75; 2,5. | 0,75; 2,5. |
| Consumption | 80-100 ml/m² per layer | 90-120 ml/m² per layer | 120 ml/m² per layer | 120 ml/m² per layer |
| Price, rub/l | 520-800 | 720-1060 | 820-1030 | 710-1060 |
| Cost of covering 1 m² | 50-80 rub. | 70-100 rub. | 100-125 rub. | 85-125 rub. |
| Characteristics | Alpina Buntlack | Alpina Direkt auf Rost | Alpina Direkt auf Rost Hammerschlageffekt | Alpina Grundierung für Metall |
|---|---|---|---|---|
| Application area | Colored enamel for metal and wood, the coating is scratch-resistant, tinted according to selected shades. The base composition is creamy white in color. | Hammer enamel is applied directly to rust and provides long-term protection against corrosion processes. Green color. | A special enamel that combines four properties: excellent anti-corrosion primer, long-term rust protection, dirt-repellent finish and hammer effect. | Anti-corrosion primer, optimal rust protection for heating radiators, railings, garage doors and other items made of iron and steel, and is also the basis for high-quality and durable metal coating. |
| Gloss level | Glossy silky matte. | Glossy. | Glossy. | Matte. |
| Packaging, liter | 0,75; 2,5;10. | 0,75; 2,5. | 0,75; 2,5. | 0,75; 2,5. |
| Consumption | 80-100 ml/m² per layer | 100-120 ml/m² per layer | 90 ml/m² per layer | 80-100 ml/m² per layer |
| Price, rub/l | 550-890 | 600-900 | 700-1000 | 1040-1200 |
| Cost of covering 1 m² | 55-89 rub. | 70-100 rub. | 90-120 rub. | 125 rub. |
Experts of the Test Purchase program check the properties of enamel on metal and confirm the declared quality of the paint:
2. Dufa (Germany)
Products under the Dufa brand have been produced since 1955 in Germany. Throughout its history, the company has been focused on environmentally friendly production. clean products with consistently high consumer characteristics. Newest technologies in the field of application of inhibitors (substances that slow down or stop the corrosion process) corrosion and innovative developments in the field of particle distribution in emulsions, allowed the company to become one of the largest enterprises in Germany.
Impressions from use: Dufa is characterized by good adhesion to metal surfaces, for example, during mechanical shocks the protective layer does not chip off large areas, the damage is localized only at the point of impact. This characteristic is provided by specialized additives of resins and plasticizers that maintain the elasticity of the layer.
| Characteristics | Dufa Retail Enamel METALL | Premium HAMMERLACK | Düfa Premium HAMMERLACK hammer |
|---|---|---|---|
| Application area | Designed for painting large metal and steel structures, agricultural machinery and machine parts. The enamel can be used as a primer under weather-resistant enamels in multi-layer coating systems | 3 in 1 system: primer, corrosion protection and enamel. Easy to apply, has high adhesion to the base. Forms elastic, moisture-resistant, weather-resistant, wear-resistant coatings. | 3 in 1 system: primer, corrosion protection and enamel. Resistant to changes in humidity and temperature conditions. Good resistance to household chemicals and short-term exposure to motor fuels and oils. |
| Gloss level | Semi-matte | Glossy. | Glossy. |
| Packaging, liter | 0,75; 2,5. | 0,75; 2,5. | 0,75; 2,5. |
| Consumption | 12 m²/l | 7 m²/l | 7 m²/l |
| Price, rub/l | 400-520 | 740-860 | 600-800 |
| Cost of covering 1 m² | 30-45 rub. | 105-120 rub. | 115 rub. |
Hammerlack 3-in-1 iron enamel solves the problem of painting items with signs of corrosion. Enamel does not require preliminary priming, protects iron from rust and gives the product a beautiful appearance:
3. Hammerite (Netherlands)
Hammerite is produced by the world-famous AkzoNobel concern, which is based in the Netherlands. At regular intervals, the company brings to the market new products to protect metal from atmospheric agents and other physical influences. All compositions meet strict quality requirements.
Impressions from use: Paint is an expensive composition, so it is best to use it where other compositions will show worse results. From my experience with Rust Beater, it is simply indispensable for street fencing, metal parts of greenhouses and plumbing. The composition “sticks” to the surface tightly, does not chip, and dries in 1 hour. The fence posts were painted 10 years ago and still don't need updating. At the same time, the oil paint on the gas pipeline poles came off the metal in the second year.
| Characteristics | Special Metals Primer | Paint for metal surfaces with hammer effect | Paint for metal surfaces, smooth glossy and semi-matte | Anti-corrosion primer for ferrous metal surfaces Rust Beater |
|---|---|---|---|---|
| Application area | Primer for non-ferrous metals and glass. Suitable for priming galvanized, aluminum, chrome, brass, copper, galvanized surfaces, as well as stainless steel structures. | Paint for interior and exterior use. Suitable for application on rusty, unpainted and previously painted ferrous metal surfaces. | Suitable for application on rusty, unpainted and previously painted ferrous metal surfaces. The paint creates a weather-resistant and water-repellent smooth coating even on rusty metal. | Designed for priming ferrous metal surfaces in rainy and coastal areas, places with high humidity (for example, in basements, greenhouses). |
| Gloss level | Matte. | Hammer. | Glossy and semi-matte | Matte. |
| Packaging, liter | 0,25; 0,5; 2,5. | 0,25; 0,5; 0,75; 2,5; 5; 20. | 0,25; 0,5; 0,75; 2,5; 5; 20. | 0,25; 2,5. |
| Consumption | 16 m²/l | 10 m²/l | 10 m²/l | 12 m²/l |
| Price, rub/l | 1000-1200 | 1000-1600 | 960-1500 | 1200-1400 |
| Cost of covering 1 m² | 60-75 rub. | 100-160 rub. | 96-150 rub. | 100-120 rub. |
Video on the use of Hammerite brand paints for painting surfaces made of various metals:
4. TEX (Russia)
The Russian manufacturer TEKS is aimed at the mass consumer. It produces paints and compositions based on its own developments, the research of which is carried out in certified laboratories. The company maintains and actively monitors product quality.
Impressions from use: I had to use paint for the garage doors, which 15 years ago were covered with oil paint of an unknown color; rust appeared on almost all surfaces. I used RzhavoSTOP Pro after first going over the surface with an emery wheel. I cleaned it superficially, without fanaticism, but the paint went on surprisingly tightly. A year later I noticed detachment in two places, but not critical. Apparently it will have to be updated every three years, but the paint is inexpensive and won’t break your budget.
| Characteristics | Acrylic anti-corrosion primer enamel Universal | Enamel primer RzhavoSTOP Profi | Anti-corrosion primer GF-021 Universal | Anti-corrosion primer "Optimum" |
|---|---|---|---|---|
| Application area | Designed for painting steel and cast iron surfaces, used indoors and outdoors (metal structures, garages, fences, gratings) on rust-free metal. | Designed for painting steel and cast iron surfaces with remnants of tightly adhered rust, used in atmospheric conditions (metal structures, garages, fences, gratings), and indoors. | For priming metal surfaces for coating with alkyd enamels and oil paints | For exterior and interior use, for priming metal surfaces, for coating with alkyd enamels and oil paints |
| Gloss level | Matte. | Glossy and semi-gloss | Matte. | Matte. |
| Packaging, liter | 0,9; 2,7. | 0,5; 0,9; 2; 10. | 1; 2,5; 24. | 0,8; 1,8; 2,7; 20. |
| Consumption | 14 m²/l | 15 m²/l | 15 m²/l | 13 m²/l |
| Price, rub/l | 260-280 | 300-350 | 90-150 | 140-150 |
| Cost of covering 1 m² | 20 rub. | 20-22 rub. | 6-15 rub. | 10-12 rub. |
Testing RzhavoSTOP Pro, applying a composition with a hammer effect to a metal surface:
5. KrasKo (Russia)
One of the main activities of the Company is the production and promotion of exclusive paint and varnish materials to the construction market under its own trademarks. The KrasKo company develops products that are in no way inferior to foreign analogues. All paint and varnish products (paints) are produced on the latest high-tech equipment, using the best imported and domestic raw materials.
Impressions from use: Of all the compositions in this manufacturer’s line, I was most impressed by Aquametallic. I had to paint the black metal water pipes running in the basement. country house. The difficulty was that it was impossible to turn off the water; condensation accumulated on the pipes and, accordingly, wet, loose rust. I wiped the pipes with a rag and immediately painted them without much hope for results. However, the paint applied very well. Of course, the appearance of the painted pipes did not turn out very well, but the protection was completed. The composition has stayed on the pipes without peeling for 3 years. The basement is cramped, without ventilation, and I was pleased that there was practically no smell.
| Characteristics | Nerzhamet | Quick Thrower | Nerzhaplast | Aquametallic |
|---|---|---|---|---|
| Application area | Anti-corrosion paint for metal, alkyd-urethane for rust 3 in 1 | Anti-corrosion, quick-drying paint, winter anti-rust primer-enamel for painting ferrous metal. | It is used as an independent coating, as well as in a complex system with phosphating soil Phosphosoil, which allows you to increase the service life of the coating. | Aquametallic is used to protect steel, cast iron and other ferrous metal surfaces. Without smell. |
| Gloss level | Semi-gloss | Semi-matte | Matte | Semi-matte |
| Packaging, liter | 0,9; 3; 10; 20. | 0,9; 3; 10; 20. | 0,9; 3; 10; 20. | 3; 10; 20. |
| Consumption | 5-7 m²/l | 5-10 m²/l | 7 m²/l | 8-10 m²/l |
| Price, rub/l | 380-500 | 320-490 | 300-420 | 380-420 |
| Cost of covering 1 m² | 50-100 rub. | 50-70 rub. | 40-90 rub. | 30-40 rub. |
Checking the parameters and characteristics of Bystromet declared by the consumer:
Editor's Choice
We consider the range of metal paints to be the most suitable products for private use (exterior and interior work). Hammerite. These compositions can be used in one layer with good surface preparation, contain additives that improve the properties of the coating and are in the average price range.
FAQ
We selected 5 popular questions and tried to answer them in as much detail as possible. Didn't find your question among those listed below? Feel free to ask it in the comments to the article!
1. Is it necessary to prepare the surface and clean it for applying paint if the product is rusty and has some defects? How do anti-rust compounds work?
Anti-rust paints contain fatty acids that neutralize the process of rust spreading, and the protective layer preserves the product. But, since the surface of metal with traces of rust is porous, it is better to do a little preparation of the metal. To do this, go sandpaper on the surface or other abrasive material, wipe the product dry with a rag and degrease with acetone or alcohol.
2.How does paint density affect consumption? What other paint indicators should be taken into account when calculating consumption?
The higher the paint density, the more firmly and completely the initial surface of the metal will be covered. Covering power is indicated by the manufacturer for ideal conditions, therefore it is better to take a correction factor of 1.3 (multiplying the calculated amount of composition). In this case, we can accurately calculate the consumption. But even the best paint will not cover the initial surface in one layer, only if it is a new product without flaws.
3. It is necessary to paint a surface that heats up to significant temperatures (metal oven). What kind of high-temperature paint can be used, and how do they differ from ordinary enamels?
When choosing heat-resistant paint, we focus on the operating temperature at which the coating will not deteriorate and will retain its original characteristics. On average, the compositions can withstand 400-600°C, which is enough to paint a metal stove. Paint with silicone resins is suitable for your case.
4. How to remove old paint from metal surfaces?
There are three main removal methods old paint from metal surfaces. Firstly, mechanical method. The layer is removed with an abrasive, but the effect can only be obtained on relatively flat surfaces.
Good results are obtained when using cord brushes on a drill or flap sanding wheels on a grinder. Carefully look at the markings on the brushes for maximum speed, use thick canvas gloves, goggles and a respirator or protective mask.
Secondly, chemical method. We purchase a gel or liquid composition that is intended for these purposes and apply it to the surface with a brush. The composition is very active; you should work with plastic gloves and a protective apron. Glasses required. The product eats through rubber products in 2-3 minutes.
The compositions are a complex composition of chemically active substances. As a rule, manufacturers include in the solution: complexing agents, corrosion inhibitors, alkalis (or acids), surfactants.
And the third way is fire. By using blowtorch(not with a cutter) heat the surface until the paint burns. The main thing here is not to overheat the metal, otherwise it will deform. After the fire treatment, we clean off the remaining paint layer with an abrasive or a wire brush.
5. I heard that there are so-called “soils”. How do they differ from paintwork on metal? Are they a complete replacement for metal coating? In what cases should primer be used and is it necessary to “lay” a layer of full-fledged paint on top of the primer?
The primer is intended for the primary coating of metal and the formation of a protective layer before application decorative composition. “Soil” provides protection against corrosion, smoothes out defects, and creates a strong base for enamels. The primer blocks contaminants that cannot be removed from the surface.
The primer is different from paint coatings availability special complexes in a composition that prevents rust from developing and protects the metal from moisture penetration. However, paints are now being produced that “work” no worse than primers (3 in 1).
IN repair work We are often faced with the need to paint metal pipes and metal structures, as well as other metal products. The big problem here is that often the metal oxidizes in the presence of moisture and rusts. To remove rust from metal, it requires mechanical cleaning, then anti-corrosion treatment and painting. This is a very troublesome undertaking; often structural parts are inaccessible for rust removal.
Finally, to make this process easier, rust paints were created, and they are also very beautiful as a decorative coating. This modern paints wide spectrum of action.
Advantages of this type of paint:
- applied directly to the rusty surface
- creates a coating on the metal that repels water and dirt
- covers the base well
- powerful grip on the base
- anti-corrosion
- quick drying
- the coating is durable, up to 8 years
- wealth of colors
Disadvantages of this type of paint:
- You cannot paint objects with it that heat up to more than 150 degrees Celsius.
- Items painted with this paint must not come into contact with drinking water
Types of paints for rust
To achieve the desired effect when processing with these paints, you need to understand their types and areas of applicability. Rust paints are classified based on the main substance, purpose and maximum temperature of use, and the number of components. So, there are water-based paints with phosphoric acid, they are the cheapest, but they have low resistance to environment; There are two-component ones with the addition of epoxy resins, polyurethane, and corrosion inhibitors. Based on the main substance, paints are divided into:
- Epoxy. Toxic, do not use in everyday life. Suitable for highly heated metal structures.
- Oily. Contains drying oil and natural oils. Not resistant to temperature. Anti-corrosion protection outdoors is low, suitable indoors.
- Alkyd. For galvanized metal. Extremely flammable, cannot be used for highly heated metal structures. Very adhesive.
- Acrylic. Long-lasting anti-corrosion protection. Suitable for highly heated structures, such as heating elements, indoors and outdoors.
- Special anti-rust paint 3 in 1. Reduces the cost and shortens the restoration of rusted metal. Quickly applies directly to bare metal. Low cost. Includes resins, anti-corrosion elements. Highly adhesive, dries quickly, protects for up to 8 years.
- Hammer paints. Gives a rough finish with a metallic sheen, similar to a hammer. The paint uses alkyds, acrylics, epoxies, and aluminum powder. Also produces glossy and semi-matte shades. Suitable also for non-ferrous metals. There is no need to apply a primer before application. The first layer acts as a primer, the second is anti-corrosion, the third acts as the enamel itself. You cannot paint objects heated above 150 degrees.
- Anti-corrosion paints for car body repairs.
- Aerosol form. It has many functions, convenient for touching up paint defects and difficult to access areas. Also suitable for non-ferrous metals and other natural materials. The universal grade of this paint also functions as a primer, anti-corrosion and decorative.
Methods for protecting metal from rust:
- Active electrochemical protection
- Galvanic tread protection
- Cold galvanizing matella
- Capping rust in a polymer film, painting metal
- Phosphating, rust conversion
Anti-rust paint for exterior use
Metal structures where anti-corrosion painting is necessary:
- water supply and heating pipes
- metal fencing
- architectural metal structures
- greenhouses
- bars, gates
Applying anti-rust paint to the surface
To achieve the expected effect during repair, you must correctly follow the stages of processing the item with these paints. You need to carefully follow the sequence of actions, otherwise your work may turn out to be defective.
- Heating systems should only be painted when they are switched off; use heat resistant paint, withstanding up to 150 degrees.
- Stoves are painted with compounds that can withstand temperatures up to 500 degrees.
- Non-ferrous metals require special primers.
- Open air facilities require organic solvents.
- If the rust is loose, it must be removed first, otherwise the paint will crumble.
- Before using the paint, check that its heat resistance corresponds to the heating temperature of the product being painted.
The best paint for rust
The price depends on the company and the components. Let us pay attention only to the most widely used types of paints, the high quality of which has been proven in practice.
Most popular. With its help you can achieve gloss, hammer and slightly matte effects. Prevents dirt from accumulating on the structure. It is used in the design of cottages, in industrial construction, in roofing work, in painting communications, industrial and agricultural equipment, and various metal structures. The surface does not need to be cleaned. Withstands temperatures from -20 to + 80 degrees. The paint simultaneously acts as a primer, rust converter and decorative coating. Dries quickly, several layers can be applied in a day. It is necessary to ensure that the surface does not peel off before painting. Do not use together with bituminous materials. Non-ferrous metals must be pre-primed.
Primers-enamels for rust:
They are very convenient to use and really facilitate the process of removing rust when applied. They give a 3 in 1 effect, i.e. act simultaneously as a primer, anti-corrosion agent and decorative coating. The surface is cleaned of dirt, degreased with white spirit, and rust is removed using a spatula, metal brush or emery cloth. Mix and apply two layers with an interval of 30 minutes to 5 hours. If this time has expired, painting with a second coat can only be done after 30 days.
Other popular most purchased rust paints:
- Enamel primer “Rzhavoed-Universal. Cleans and primes the base. Filled color is created with a second layer.
- Stainless steel paint. Alkyd-based, quick-drying, anti-corrosion.
- Iron lead paint. A good one fits, masks flaws. Does not have a strong anti-rust effect. Low price.
- Primer enamel Alpina (Direct auf Rost). There is no lead, unlike many other paints. Doesn't smell, creates a durable coating, fits well. First, it is enough to remove dirt from the metal.
In general, when using rust paint, it is important to read the instructions carefully because there can be significant differences in the application of different grades of these paints. At the same time, it is necessary to pay attention that in some instructions the quality of the paint is somewhat overestimated, so it is necessary to check in other sources whether it is actually necessary to prime the surface before use, as well as such indicators as, for example, the suitability of the paint at - 20 degrees frost, are written only for force majeure circumstances, but in reality this does not mean that it is usually used at such a temperature.
Any metal structures that are already ready or just being prepared for installation require protection from external influences. This is especially necessary if the product will be located outdoors. In this case, one of the options for surface treatment is metal paint. The product can simultaneously perform 2 functions - decorative and protective, but for this you need to choose it correctly.
|
Name |
Price |
Briefly about the main thing |
|
|
2.5 l - 2700 rub. |
High temperature paint is designed to last a maximum of 3 years on average. |
||
|
1 l - 250 rub. |
Universal alkyd gloss paint. It is used for working on wood, primed metal and other surfaces, both indoors and outdoors. |
||
|
0.8 - 550 rub. |
Heat-resistant elastic coating can be used on metal and concrete. In reality, it can only withstand short-term temperature peaks. |
||
|
1 l - 430 rub. |
Used for the protection and finishing of clean, rusty and partially corroded surfaces up to 0.1 mm. |
||
|
0.75 l - 240 rub. |
Dries quickly, creating a beautiful texture with a glossy sheen. Does not fade over time. Can be painted without a primer, hides small dents and irregularities, and is not afraid of precipitation and temperature peaks. |
||
|
2.5 - 2100 rub. |
Doesn't spread. Consumption is economical. The pattern is deep glossy. Stored for 5 years. |
||
|
2.05 l - 1500 rub. |
The Greek alkyd resin product is weather resistant. Easy to apply and does not run. The layer is elastic and dries quickly. |
Material characteristics
Any paint for metal against rust is anti-corrosion, the only difference between them is the degree of effect and the possibility of application directly to areas with pockets of corrosion. In general, each option proposed by the manufacturers will reliably protect the base from the formation of growths. In addition to this property, the product also has a number of features.
First of all, it should be noted fire-resistant paint, which copes well with protective properties, while at the same time acting as a barrier against temperature effects. This material is successfully used in processing various designs that are regularly exposed to heat or are located close to a heat source. The entire range can be divided into 5 main varieties, depending on the composition:
- Acrylic- has a long service life without loss of protective functions. According to most manufacturers, the material is capable of protecting metal for 8 years. The product contains no toxic components, so the product is suitable for both internal and external use.
- Epoxy- the composition includes epoxy resins, which makes them harmful to human health and can only be used outdoors. It is also not recommended to use the material for painting household items. Most suitable place For use in places exposed to elevated temperatures.
- Alkyd- used for painting galvanized elements. They have a high level of adhesion. But this option is prohibited from being used near heating units or open source fire because it is considered flammable. Exterior paint on galvanized metal is easy to apply and dries relatively quickly.
- Oily- contains natural ingredients, including drying oil. It is used to cover the suite, which is located directly in the building. But the mixture is not able to withstand temperature changes, so it is not intended for use outside the building.
- Hammer It contains alkyd, acrylic and epoxy components, glass fiber, aluminum powder and metal pigments. In terms of external parameters, it resembles a surface knocked down with a hammer. The coating has a pronounced relief with a bright metallic sheen. Available in glossy and matte finishes, and can be in different shades. Double coat treatment eliminates the need for finishing mixture and primer.
This information will be sufficient to complete the right choice. But when it comes to choosing a manufacturer, experts recommend using the ratings of the best, according to builders, paints for metal and rust.
This product belongs to the 3 in 1 category. This means that it performs 3 functions at once - anti-corrosion primer, sublayer and topcoat. The only condition is that the soft layer must be removed first, otherwise it will peel off along with the finish.
Hammerite 3 in 1
Hammerite paint for metal and rust is considered universal because it is produced using 3 in 1 technology. Thanks to this factor, it includes a primer, corrosion inhibitors and a topcoat. This product does not require additional preparatory work, which reduces time costs. The material is resistant to abrasion, humidity and temperature influences.
Hammerite 3 in 1
The heat-resistant coloring consistency dries quickly enough, so to create the second layer you need to wait only 4-6 hours from the moment of applying the first. Alkyd material is widely used in industrial sector, and living conditions. Paint for galvanized metal is also suitable for painting fences, pipeline systems, and furniture. In addition, metal alloys, wood, and plastic can be used as a base. The mixture can be applied directly to the corrosion using a brush or spray. A 2.5 liter Hammerite capacity is sold at a price of 2500-2700 rubles.
Epoxy-polyester powder paint for metal has high performance before chemical exposure and darkening at elevated temperatures. Does not tolerate direct sunlight well, so it is used indoors.
Most often it is used for cladding household equipment, commercial fittings, shelving, furniture components and other fittings. The material is produced not only in white; there is also paint in silver, yellow, blue, green and other shades. Price for 2.5 kg - 1050 rubles.
Products in this category will not turn yellow or lose their gloss when exposed to direct sun rays, not susceptible to oxidation. The maximum service life is 5 years, after which the surface must be re-coated.
Prestige
This is a quick-drying paint for metal, which is characterized by a high level of adhesion to the substrate, as well as a short drying time. It takes up to 60 minutes to completely harden, which is considered a big plus. The coating has good corrosion protection and weather resistance. The manufacturer recommends, if necessary, diluting the mixture with xylene, R-5 and R-4.
When applying the product in one layer, its consumption varies between 60-120 g/sq.m. It is packaged in 1000 ml containers, the price of which varies between 250 rubles.
Certa
Heat-resistant paint for metal up to 900 degrees from a domestic manufacturer can be used for painting elements that are used not only with increased heat transfer, but also with severe frosts down to -65°C. The material is released in 26 color solutions, while the temperature stability is not the same for every tone, this should be taken into account when choosing.
Matte black paint for metal can withstand 900°C, other shades have a slightly lower rating. The fire retardant mixture is packaged in containers of various sizes, including spray cans. 800 gr. costs about 400-550 rubles.
The name "hammer" is derived from the visual effect created. After drying, the surface becomes embossed with a three-dimensional pattern that imitates hammering. It perfectly protects metal from corrosion, retains its design for 5-6 years even in direct sunlight.
Lacra Hammer Effect
Alkyd dye has high decorative properties, but also performs well protective functions. The material can be applied to structures cleaned from corrosion, as well as directly to rust. The main thing to consider here is that the build-up layer should not exceed 0.1 mm in thickness. In addition, the product is suitable for cladding wood substrates.
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Lacra Hammer Effect
When hammered products dry, they form a uniform glossy coating with slight relief and a hand-chased pattern. If you plan to apply the mixture to products made of non-ferrous alloys, their surface must first be treated with primer. The work uses rollers, brushes and spray guns. The minimum volume of 1 liter costs 400-430 rubles.
The quick-drying, odorless material is made on the basis of alkyd components; as a result of application, it forms a uniform layer with a glossy surface. It is used quite economically, one liter is enough to process 15 sq.m.
The product is packaged in 750 ml tin containers. The odorless dye is applied as on metal surfaces, and galvanized, wood plastic, concrete. Can be used inside and outside the building. The color palette contains 24 shades. The price for 750 ml varies within 240 rubles.
The symbol on the package “3 in 1” means that the composition includes components that neutralize rust, prime the base and, in fact, the coloring enamel itself. Convenient and quick to use, there is no need to pre-prepare the base, but only if the rust is not soft and its layer does not exceed 0.1 mm. Here you will have to clean it with a wire brush and then cover it without primer.
Alpina Direkt Auf Rost
Alpina is used for processing metal structures located both indoors and outdoors. The product simultaneously creates a decorative and protective cladding that will not only look attractive, but also protect the base from moisture or corrosion.
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Alpina Direkt Auf Rost
Rollers and brushes are used for work. The material is available in 9 different shades. Price for 2.5 liters - 1950-2100 rubles.
Alkyd anti-corrosion mixture creates glossy surface with uniform distribution of pigment even if the product is applied in one layer. The material is resistant to atmospheric influences and temperature changes.
The main parameters of metal paint for exterior work are as follows:
- shine - glossy;
- consumption - 9-11 sq.m/l when applied in one layer;
- dry residue - 50-53%.
A container with a volume of 2.5 liters costs up to 1,500 rubles.
VIDEO: How to properly paint galvanized metal
This phenomenon of metal oxidation and its gradual destruction under the influence of moisture is known as corrosion. But how to deal with it? If the rusted area is large, then it can only be restored with the help of complex work, but small areas can actually be protected by using rust-resistant enamels.
Types of anti-corrosion protection
To treat small areas or to prevent corrosion, rust enamel primer is used. This paint combines three properties: enamel, primer and rust converter. But anti-corrosion paints are only common name drugs that differ in their composition. Depending on the anti-corrosion components included in their composition, they are divided into the following groups.
Insulating
This primer-enamel for metal, after drying, forms a durable film that blocks access to the base of water and oxygen. These dyes are usually made from red lead and additionally have heat-resistant properties.
These characteristics allow them to be used for street work and for painting surfaces in water. Quick-drying: after just 2-3 hours this coating provides reliable anti-corrosion protection.
Passivating
This primer-paint is used to slow down the development of corrosion. The anti-corrosion substances included in its composition chemical formula significantly slow down the occurrence of oxidative processes. Suitable for use in areas of high humidity.
Converter
Contains orthophosphoric acid. Acid after chemical reaction with iron oxide (corrosion) forms iron phosphate, which is strong and inert to oxidative processes. The use of converters allows not only to protect the structure from destruction, but also to partially restore the damaged metal base.
Phosphating, two-component
The composition includes orthophosphoric acid and passivating additives. It has low consumption when applied to the surface and has high adhesion. Coating with such paints is possible even for galvanized metals, which are almost impossible to treat with other anti-corrosion agents.
Tread
Anti-corrosion enamel with tiny metal particles dissolved in it forms a durable metallized coating after drying. The use of paints with protectors is recommended in conditions of high humidity.
Quick-drying primer-paint not only has high anti-corrosion qualities, but is also economical: its consumption per 1 sq.m is small.
Protectors are often used to paint boats or metal piers in the water.
Inhibitory
It contains a unique formula. This primer-enamel for rust gives the oxidized structure, after interacting with it, the properties of a primer. Inhibiting paints dry quickly and have high adhesive properties.
Their disadvantages include the large consumption of material, compared to other primer-paints, caused by abundant impregnation of the rust structure. But, despite this small drawback, inhibitor paints are most in demand for providing anti-corrosion protection and decorative painting of metal products.
The dye selected in accordance with the technical characteristics will stop corrosion only if:
- The rust area is small.
- Rust has a strong adhesion to the metal base.
The use of three-in-one paint for large damage to the product or on a loose, fragile rusting area does not provide a positive anti-corrosion effect. Such violations of the metal structure require major restoration work.
Examples of materials
Among the available paints, “Dali” from the Rogneda company, as well as “Stop Rust” enamel primer, stand out. The consumption of “Stop Rust” material is from 80 to 150 g for each square meter. One liter of Dali paint, according to technical specifications, enough to cover 12 square meters.
How to choose a dye
Primer enamel for rust, which combines the properties of a decorative coating, primer and rust protection (three in one), is recommended to be selected taking into account the following parameters:
- Type of metal. Depending on the type of alloy, the type of anti-corrosion protection is selected, as well as the type of base (water or oil).
- Impacts on the product (humidity, temperature changes, likelihood of mechanical damage).
- The degree of protection of the dye, what kind of coating it forms on the surface (a type of protective film).
- The nature of corrosion (whether it develops quickly or not, the size of the damaged area, etc.).
- Drying speed. For outdoor work or when painting surfaces in contact with water, quick-drying paints should be used.
- Toxicity. Most anti-corrosion dyes that provide a durable protective coating are highly toxic, so it is recommended to work with them in a well-ventilated area, using gloves and a respirator. The degree of toxicity can be determined by studying the composition indicated on the package.
- Economical. In most cases, anti-corrosion agents have a small consumption per 1 sq.m. Relatively high consumption is associated either with the increased protective properties of the product, or with the friability of the rusted surface.
- Decorative. Unfortunately, all paints that help prevent or eliminate minor corrosion damage are only available in black, gray or brown due to the nature of their composition. But when purchasing a coloring agent, you should pay attention to the shine: matte or glossy.
How to choose a tool
Most three-in-one paints contain aggressive chemical compounds, corroding artificial fabrics. The following painting tools are used to apply paint to a metal base:
- Brush. Due to the aggressive substances contained in most primer paints, brushes should be chosen with natural bristles. To distribute the product evenly without drips, experts recommend purchasing thick, wide brushes.
- Roller. It is better to choose a “coat” for the roller from velor or polyacrylic with medium or short pile. Before purchasing a roller, you should study it to find out what dyes it can be used for.
- Spray gun. Only models that do not have plastic parts are suitable (plastic is deformed under the influence of anti-corrosion substances).
- Spray can. The product produced in cylinders, despite its economical consumption and ease of use, is rarely used due to its high price. It is recommended to use a spray can when you need to paint a small area.
In addition to the tool, to apply the coloring agent you will need:
- metal brush;
- water and detergent;
- degreaser.
Having prepared everything you need, you can start working.
How to paint
Before you begin applying anti-corrosion enamel, the base must be prepared for work so that the painting has the maximum protective effect. To do this you need to do the following:
- Use a wire brush to clean off the corroded damage, removing loose pieces of rust. You can clean it using grinder with an appropriate attachment, except for the area affected by rust. It is recommended to additionally sand the surfaces adjacent to it.
- Rinse thoroughly the entire area to be painted and dry thoroughly. Depending on the size of the item, you can wash it under running water, with a rag, or using a portable car wash. The use of a car wash, as practice has shown, provides better surface cleaning due to the fact that water detergent supplied under pressure.
- Treat with a degreaser. White spirit, gasoline or other quick-drying solutions can be used as a degreaser. If it is not possible to completely degrease the structure, then it is necessary to at least treat the rusty areas with a solution. If you do not use a degreaser, the adhesion of the primer-paint to the base will significantly deteriorate.
Only such preparation will help to say “stop” to rusting. After the degreasing solution has dried, the dye can be applied. For long lasting results experienced craftsmen advise:
- Apply primer-enamel in at least 2 layers, and re-painting should be carried out only after the previous layer has completely dried.
- Apply the second layer after the previous one has dried, but no more than after 5 hours. If more than 5 hours have passed, then you should find out in the instructions the time for complete polymerization of the composition (usually 25-30 days) and only after this period re-coat. Neglecting this recommendation will lead to a decrease in the protective qualities of the primer-paint and to the fragility of the decorative finish.
If you choose the right enamel primer with corrosion protection depending on the nature of rusting and the operating conditions of the product, and also follow all stages of applying the paint, you can obtain reliable and long-term protection of the metal structure from the development of corrosive changes.