New finishing materials appear on the market every year. Alloys and compounds that previously seemed like science fiction have become a reality and are now actively exploited by humans. According to the assurances of the developers, such materials have high consumer characteristics and are head and shoulders above the existing ones. Despite this, metal remains the leader as a finishing material for outdoor work. It is used in the construction of multi-storey buildings, as fences for balconies, staircases, gates, in summer cottages, small buildings, greenhouses are erected from it, windows are lined and much more.
Its ubiquity is influenced by its high resistance to mechanical stress, temperature fluctuations and availability. The main disadvantage of the material is its low resistance to moisture. Rust develops on the surface, which over time will cause a lot of trouble. You can prevent its appearance by using paints and varnishes. To be more precise, paint for metal and rust.
Content
What is rust?
Low corrosion resistance can be a source of big problems. It not only impairs the appearance, but also reduces the service life of structures and products. Rust occurs as a result of oxidative processes taking place on the metal surface. To start the process, moisture alone is not enough, air is also involved in it. One of the conditions is a large amount of water vapor.
Further corrosion penetrates deep into the material. The porous structure of the metal acts as a favorable environment for the accumulation of moisture. In order to develop the best ways to combat corrosion, you should understand what it is:
- From the effects of atmospheric phenomena. Humid air and other negative factors lead to the onset of oxygen or hydrogen depolarization, which destroys the crystal molecular lattice.
- Water (sea). The material is adversely affected by salt and microorganisms.
- Unpaved. Soil temperature, composition and other factors have a significant influence. Since this applies mainly to pipelines, it is problematic to carry out premature diagnostics.
Depending on the type of lesion, several types can be distinguished:
- rust has hit the entire surface or some of its parts;
- spots, pointwise penetrating inside;
- deep crack that destroys the molecular lattice;
- in a steel product consisting of several alloys, the defeat of one of them;
- extensive lesion deforming the surface and penetrating deep into the material.
Classic protection consists in the elimination of the affected area and treatment with anti-corrosion primer. After that they are painted with protective paint. Such a technique requires significant material costs from the contractor, and implementation takes a lot of time. In this regard, the search for alternative methods that would require less time and money did not stop; they were paints used on top of rust.
What are the differences from the usual?
Surface treatment, which includes several stages, takes an unreasonably long time and requires additional cash injections. Rust paints are applied directly to the site, just like ordinary decorative ones. They have a wide color palette.
Typically, this paint is marked 3 in 1 on the packaging, indicating that it has completed three tasks.
- Eliminates rust.
- Priming the surface.
- Forms a monolithic decorative waterproof layer that is resistant to various chemical influences.
Advantages:
- application to a rusty surface does not require complete cleaning;
- anti-corrosion resistance;
- the formed layer protects from dirt and water, with it the metal product has an attractive appearance;
- good adhesion to the affected areas, create a uniform coating;
- dries quickly;
- retains its qualities for 8 years. Timing varies depending on the composition and manufacturer;
- wide color palette.
Disadvantages:
- use on structures heated to over 150 degrees is not allowed;
- It is strictly forbidden to paint products in contact with drinking water.
What are they?
Metal is actively used in all areas and industries. Depending on the type of activity, specific formulations have been developed. It is customary to classify anti-corrosion compounds by one element:
Alkyd
A budget option that is in high demand. Alkyd enamel is made on the basis of the varnish of the same name, or synthetic resins. The main field of application is the painting of galvanized metal surfaces.
Dignity:
- does not take long to dry;
- operation for many years;
- aggressive chemicals and temperature extremes are not harmful;
- ease of use and low consumption.
Disadvantages:
- carry out work only in a protective respirator, special clothing and a mask;
- highly flammable, use in rooms and highly heated metal structures is not allowed;
- high adhesive performance.
Acrylic
The basis is polyacrylates, dyes and anti-corrosion modifiers. Universal compound for indoor and outdoor use.
Advantages:
- dense inert layer is not afraid of temperature fluctuations and atmospheric phenomena;
- acrylic adjusts to the tension and compression of the metal;
- incombustible;
- has no odor and no harmful compounds. Used inside buildings;
- does not fade;
- the use of colors is allowed.
Disadvantages:
- clean and dry surface without dust and dirt;
- humidity and air temperature should be in accordance with the manufacturer's recommendations.
Oil
Natural oils and drying oil were used in the manufacture. The formed enamel is practically unstable to negative atmospheric manifestations, ultraviolet light, temperature extremes and rust. In this regard, they are painted only in buildings.
Molotkovaya
The polymer resins in the paint provide high adhesion to metal. The resulting coating is strong and will last for several years. Forms a rough layer with a characteristic shine.
Advantages:
- not afraid of high humidity and temperature changes;
- does not fade;
- resistance to mechanical damage;
- heat resistance.
Disadvantages:
- high price;
- problems with removing the old layer;
- high consumption.
Epoxy
This enamel is highly popular and popular. The composition includes epoxy resins, coloring pigments and hardeners. Main area of application, painting of external elements.
Advantages:
- dries within 4 - 10 hours;
- glossy finish;
- resistance to high temperatures;
- affordable price.
Disadvantages:
- toxicity.
How to choose?
In the store, paint is presented in a wide range from well-known brand manufacturers and budget ones, about which almost no one knows. It is easy to get lost from what he saw for a beginner and even an experienced builder. It is worth choosing based on general characteristics:
- Metal and its purpose. Steel and aluminum are painted with different mixtures. This is due to the nature of the coating. Plays the role and purpose of the structure.
- Terms of Use. Consideration must be given to the maximum and minimum temperatures, how humid the environment is and the risk of mechanical damage. Ignoring the requirement will lead to rapid wear of the paintwork.
- Corrosion type and protection level. Complementary qualities. Neglected designs require the use of enamel with strong regenerating and protective properties.
- How quickly it dries and how toxic it is. Close to water, the best option is quick-drying. Working indoors, use long-drying mixtures that are not harmful to health.
- Colour. Some designs, according to the rules, are painted in certain colors.
Recommendations
To obtain the maximum result from the purchase and enhance its qualities, as well as to fully understand the benefits of the mixture, it is recommended to listen to the simple advice of experts. They are able to increase the efficiency of the paint and varnish mixture.
- Read the instructions carefully before making a purchase. In some cases, special solvents may be required. In such a case, they immediately purchase additional goods and strictly follow the instructions.
- Certain mixtures position themselves as 3 in 1. But, if time permits, additional funds will not be superfluous.
- Only the manufactured structure is painted after the metal has completely cooled down. Then the seams are cleaned and after that they proceed to the final stage.
- Carry out outdoor work taking into account the temperature (over 27 degrees - postponed). Likewise too low. Since the dye will quickly solidify and will not be able to affect the material in full.
- Despite the fact that the instructions indicate the possibility of applying to an unprepared surface. Experts recommend preparing and degreasing it. In this case, the paint will react more effectively and the result will be better.
The best paints for metal and rust for outdoor use
Novbytkhim Grunt-Enamel 3in1 for rust
The mixture is focused on painting and protecting clean and corroded metal structures with a rust thickness not exceeding 100 microns. Universal enamel that does not require prior priming. This function is performed by the mixture itself.
Advantages:
- dries quickly;
- forms an elastic coating resistant to temperature extremes;
- anti-corrosion pigments prevent oxidative processes on the surface;
- a preliminary primer is optional;
- impeccable appearance;
- the use of a pneumatic spray is allowed;
- low consumption.
Disadvantages:
- application on heating surfaces is not allowed;
- toxic odor;
- incompatible with surfaces painted with nitroglycerin compounds;
- selection of a solvent will be difficult.
Profilux / Profilux Primer enamel for rust 3 in 1 hammer
The 3-in-1 outdoor hammer enamel primes, transforms rust and paints metal objects. Allowed to be used for large-sized objects, car parts, building structures, furniture and mechanisms. It creates a unique relief pattern on the surface.
Advantages:
- low cost;
- dries quickly;
- suitable for indoor and outdoor use;
- waterproof;
- resistant to atmospheric precipitation;
- simple application.
Disadvantages:
- you must use a solvent;
- uneven colored layer;
- it is advisable to clean the surface of dust, dirt and degrease.
ALPINA
Hammer-coated alkyd enamel will save the visionary owner from worrying about steel structures for a long time. Painting of objects inside and outside is allowed. Fences, railings, forged lattices, benches and gazebos will retain their impeccable original appearance for a long time. This is made possible by the innovative 3-in-1 technology (primer, anti-corrosion coating and topcoat).
Advantages:
- relief structure;
- simple application;
- dirt-repellent properties;
- durable protective layer;
- without smell;
- does not harm health;
- economical consumption.
Disadvantages:
- high price.
The best paints for metal and rust 3 in 1
Primer-enamel 3 in 1 for metal and rust Yaroslavl Paints Five Masters
The domestic product is positioned as a mixture with a 3-in-1 effect (rust removal, anti-corrosion coating and protective enamel). The decorative layer is UV resistant and prevents further oxidation processes. Designed for painting small elements and large-sized structures, as well as wood.
Advantages:
- affordable price;
- dries quickly.
Disadvantages:
- practically does not cope with the task;
- liquid;
- acrid odor;
- low adhesion.
Ral 5010 primer enamel 2,3l, Panzer
Henkel has established itself as a company that produces only high-quality products that can pleasantly surprise and leave only positive impressions about themselves. The new Panzer is no exception. Its main feature lies in the creation of armor protection with high covering qualities. It is enough to apply one layer and the structure will be reliably protected from corrosion.
Advantages:
- 3-in-1 effect (rust transformation, primer and topcoat);
- the balanced composition allowed the paintwork to maintain its qualities for 5 years;
- resistance to abrasion and mechanical stress;
- does not contain substances toxic to the human body (toluene, lead compounds, etc.).
Disadvantages:
- high price.
Hammerite smooth semi-matt
An English company that has been producing quality products since 1961. It is commonly used in all industries and metal products where there is a risk of rust. The effective formula incorporates properties such as particle inhibitor, protective primer and decorative enamel. Suitable for painting ferrous and non-ferrous metals, wood, plastic, tiles and glass.
Advantages:
- Dual Tech combined with wax covers the metal with a double layer against moisture and corrosion;
- a layer with a scaly coating blocks the access of oxygen inside;
- heat-resistant layer up to 80 degrees;
- high covering and adhesive qualities.
Disadvantages:
- the price will unpleasantly surprise.
The best hammer paints for metal and rust
DALI Primer-enamel for rust 3in1
Used for internal and external work. All metal structures must be coated with a protective and decorative layer, regardless of the degree of corrosion. The maximum rust thickness is 100 microns.
Advantages:
- resistance to seasonal temperature fluctuations;
- application to rust is allowed;
- high adhesion rates to painted and corroded surfaces;
- water, oils, acids and alkalis are not harmful;
- simple application;
- does not fade and does not turn yellow;
- ultraviolet rays are not harmful.
Disadvantages:
- strong smell;
- when combined with solvent No. 646, it curls up;
- the minimum temperature is 8 degrees.
POLI-HAMMER
Enamel has protective and decorative functions. It neutralizes already formed foci of corrosion and prevents the formation of new ones. In addition to its main purpose, it is used for painting wooden and brick buildings.
Advantages:
- stylish look;
- large color palette;
- polyfunctionality.
Disadvantages:
- demanding of the contractor, non-compliance leads to the need to start work anew.
Euroclass
The attractive price combined with the irresistible appearance, imitating hammering, allowed the product to occupy a leading position in the market. Special mention is made of the fact that the enamel hides the defects of the base. This reduces the time required to prepare the substrate and paint it. After acquiring hardness, the coating is not afraid of exposure to moisture, oils, sunlight and sudden temperature fluctuations.
Advantages:
- budget price;
- the possibility of applying in frost;
- operation for 5 years;
- adhesion.
Disadvantages:
- low covering ability;
- increased fluidity.
Best metal and rust paints for cars
KUDO
Alkyd enamel in its composition has anti-corrosion elements and pigments, which make it possible to paint not only clean surfaces, but also with a severe degree of damage. Used for indoor and outdoor use.
Advantages:
- good covering ability;
- adhesion is above average;
- stylish decorative layer;
- resistance to negative atmospheric manifestations;
- use even in hard-to-reach places will not cause problems.
Disadvantages:
- the minimum temperature for work is +10 C;
- complete drying after 5 hours.
DECORIX 520 ml
Product from a brand known on the market for 10 years. The products have earned many positive reviews from beginners and professionals who know their business perfectly. The products are focused on a wide range of applications.
Advantages:
- neutralizes foci with corrosion, primes protective and decorative coating;
- glossy finish;
- does not fade;
- weatherproof.
Disadvantages:
- focus on small hard-to-reach areas;
- high consumption;
- 3 coats are recommended.
ABRO with polymers for calipers, discs, springs, drums
Acrylic spray paint using ABRO ceramic polymers as a base from a well-known American brand is focused on transport. The brand includes over 1,500 different items covering all branches of human activity. It can handle heavy and extra heavy braking loads. This allows them to be used even on road trains.
Advantages:
- wear-resistant protective layer;
- the maximum temperature is 260 C;
- reduces the risk of overheating and enhances heat transfer;
- resistant to chemicals, sand, stones and moisture;
- dries quickly.
Disadvantages:
- narrowly targeted use;
- high consumption;
- palette of 3 colors.
The market for paints and varnishes offers products suitable for almost any type of metal work. The assortment is striking and can cause confusion for an unprepared consumer. The presented top will help you navigate in all the variety and make the right purchase. It presents not only well-known brands, but also budget goods. All of them deserve positive reviews and showed themselves on a good side.
