Removing rust and stopping the corrosive destruction of metal is a serious problem for any equipment, machinery, metal product.
The range of effective products designed to solve this problem includes innovative formulations called "Primer-enamel 3 in 1".
The formula and technical characteristics of this chemistry allow you to forget about rust for a long time, and a simple instruction facilitates practical use. This is confirmed by numerous reviews of different types of primer enamel.
Content
What is it, why 3 in 1?
The classical scheme for removing iron oxides from the metal surface and further protection includes several sequential operations.
They are associated with:
- by applying a certain anti-rust agent,
- flushing,
- priming.
And between each step there must be drying. Primer-enamel allows to speed up the processing time and simplify the process of metal protection.
Such a primer on the metal surface provides:
- Neutralization of oxidation products.
- Creation of a hydrophobic primer layer.
- Weatherproof decorative coating.
Primer-enamel replaces three separate remedies:
- rust cleaner,
- primer,
- paint.
The result of the work is a beautiful smooth coating that reliably preserves the surface and prevents moisture from reaching it. Externally, the enamel layer can be glossy or matte (hammer). Manufacturers give the coating a shelf life of at least 5 years.
Composition and specifications
Despite the fact that the composition of the primer-enamel includes a converter, a primer and paint, it is very difficult to make a quality product in artisanal conditions. This is explained by the fact that the formula of modern priming enamels is very complex.
A banal mixing of ingredients is not enough to make it up. Primer-enamel "3 in 1" is not just "the best paint for rust", its composition is complex, as it includes:
Alkyd urethane varnish... A mixture of alkyd resin and urethane additives is required as a binder base.- Corrosion inhibitors... They form a phosphate film that neutralizes existing rust and stops corrosion.
- Enamel... Provides a decorative finish that at the same time protects the surface from weathering.
- Plasticizers... Necessary to give the product elasticity, fluidity, strength.
- Solvent... Maintains the mixture in a liquid state, giving it the desired consistency.
The exact composition of different priming enamels may differ, since manufacturers use their own set of additives. However, this does not greatly affect the overall technical parameters of the mixtures and their characteristics.
All ground enamels are characterized by:
- impact resistance;
- water resistance;
- inertia;
- heat resistance;
- wear resistance;
- durability;
- aesthetics.
In the manufacture of primer enamels "3 in 1" manufacturers try to adhere to general technical indicators. So, the specific weight of such funds is 1.3-1.4 g / cc. The maximum fraction of insoluble compounds is 40 μm, and the maximum flexural elasticity is 1 mm.
When is the remedy needed?
Primer-enamel "3 in 1" effective for covering:
- metal,
- concrete,
- reinforced concrete,
- wooden,
- stone surfaces.
This universal remedy is applicable for:
pipes,- gratings,
- fences,
- stairs,
- artistic forged products,
- monuments,
- playgrounds,
- car parts,
- bridges,
- industrial metal structures,
- pipelines.
The product can be used for initial coating of a new product. It is used for repainting used products that show signs of rust.
The use of paint and varnish chemistry of this type is justified in the case when there is no time for a long process of multistage processing according to a standard scheme using several means.
Types of primers for metal against rust
Primer enamels differ in color. The palette of decorative anti-rust is not inferior to the artistic set of colors. The classic colors are:
- white,
- the black,
- Gray,
- brown.
If desired, you can find original colors for painting enamel:
- gold,
- green,
- wine red
- red-brown
- rapeseed yellow
- blue and others.
The classification based on the composition of anti-corrosion additives distinguishes several functional varieties:
- Insulating... Perfectly protect from atmospheric factors (moisture, temperature changes).
- Passivating... Effectively reduces corrosion in high humidity conditions.
- Transformative... They are able to qualitatively dissolve rust and restore metal.
- Phosphating... Protects galvanized surfaces well in wet conditions.
- Protective... They contain metal particles, therefore they form a durable metallized layer.
- Inhibitory... Possesses high adhesion, excellent priming properties.
Instructions for use
The development of primer enamels has greatly simplified the care of rusting materials. The high price for such paints and varnishes pays off with simple application.
The instruction requires following several steps:
Rust layers are removed from the surface using a tool or sandpaper.- The cleaned areas are degreased with a solvent or white spirit.
- If necessary, add a suitable thinner to the primer enamel.
- The first layer of 3 in 1 enamel is applied using a brush, roller or spray gun.
- Allow two hours to dry the first paint coat.
- Apply a second layer, trying to avoid drips and clots.
- Dry the coating for the time specified in the instructions for the selected enamel.
It is necessary to paint the product with primer enamel at temperatures from +5 to +30 degrees.In hotter conditions (above +30 degrees), the paint dries very quickly and you may not have time to evenly distribute it over the surface. In cold conditions, the viscosity of the composition increases, which leads to the appearance of smudges.
Top 7 best and reviews about them
Both foreign and domestic manufacturers are engaged in the production of "3 in 1" primers. The range of products is wide enough.
Each tool has its own:
- consumption,
- type of diluent,
- drying time,
- price.
Prestige
Primer enamel is produced by Prestige holding. The thickened emulsion is diluted with a solvent, white spirit or petroleum xylene. For a single layer application, 125-180 g / m2 is required. This figure is slightly higher compared to other primer enamels.
The finished decorative layer dries up in at least 6 hours... The price is lower than that of some analogues and averages 400 rubles per can of 1.9 kg. A 5 liter capacity is sold for 1400 rubles.
All users (100%) unanimously recommend Prestige for use. Full compliance with the “3 in 1” purpose, excellent corrosion protection, fast drying is noted. Minus Prestige is an unpleasant smell.
Lacre
The company "Lakra-Sintez" specializes in the production of paints and varnishes. This primer-enamel is used for surfaces of different quality in indoor and outdoor conditions.
Fresh paint dries completely in 10 hours... A small can (0.8 kg) costs an average of 400 rubles.
For all its advantages, only 33% of consumers recommend enamel primer Lacra. The advantages include good color qualities and water-repellent properties. By cons - long drying time, poor paintability.
Kudo
Alkyd enamel is produced by the RusTA group of companies "Russian technical aerosols" under the Kudo trademark. Consumption of paint and varnish is 260-520 ml / m2.
Enamel characterized by a shortened drying period between the first and second layer (10-15 minutes)... It takes 2 or 4 hours to completely dry the coating, depending on the type of spray. A 520 ml aerosol can costs about 220 rubles.
Reviews of Kudo are contradictory: 50% recommend the product for use, the rest are dissatisfied with the quality. Good surface protection, ease of use are noted, but problems with the spray system are possible.
Profilux
The enamel primer is produced by Profilux. The thickened mass is diluted with solvent, white spirit, xylene. The consumption of Profilux can be called economical, since it does not exceed 100 g / sq.m.
Profilux has earned a low percentage of user recommendations (33%). The advantages include the price, good rust preservation. Of the minuses, there is a strong odor, cracks in the coating, uneven consistency.
Novax
The enamel primer is produced by the Novaks plant. With a single layer application on 8-12 square meters, one liter of the product is spent... Complete drying time is 24 hours. The manufacturer guarantees the preservation of the coating for 12 years. A 3-liter can has a price tag of 1160 rubles.
Only 16% of users who tested Novax left a positive recommendation to use the product.
It is noted that the color indicated on the bank does not always coincide with reality, and cracks appear on the new coating after winter. At the same time, the primer-enamel has an economical consumption, not a very pungent smell.
Novbytkhim
The developer of the primer-enamel is a St. Petersburg company with the same name.To dilute the paint and varnish, it is necessary to use a solvent of the same company.
Novbytkhim is recommended by 45% of users, noting its high drying speed, durability and good rust staining. The disadvantages include a pungent smell... Read more about Novbytkhim soil enamel here.
Dali
The product is produced by LLC NPP Rogneda. Varieties include gloss and hammer enamel. Consumption is economical (70-100 g / m2), and the composition is resistant to frost and heat: storage is possible in the temperature range from -40 to +40 degrees.
Dali is diluted with solvent or xylene if necessary... The disadvantage of this primer enamel is its high price. A large 10-liter can has a price tag of 5800 to 6600 rubles.
More than half of users (77%) recommend Dali. The enamel adheres well to the surface, dries quickly, can be diluted without problems, but smells strong. You can learn more about Dali's primer enamel here.
Where and at what price to buy?
Innovative primer enamels are no longer in short supply. You can find the product of the selected manufacturer in:
- building stores,
- specialized dealerships,
- online stores.
The price of products from different companies can vary significantly. It is determined by the cost price, brand popularity, and the retail outlet's pricing policy.
Tips for selection and use
Compliance with the instructions for the use of decorative primers "3 in 1" guarantees a quality result. However, knowing some of the nuances of processing will help avoid problems.
To dilute paints and varnishes, use only the chemical that is indicated in the accompanying information to the product... But in any case, the amount of solvent should not exceed 10% of the volume of the primer-enamel.
Taking into account the toxicity of the composition of the primer-enamel and solvents used for dilution, all work on the processing of products must be carried out in the open air.
If the object is in the room, you should turn on ventilation and open windows. For safety reasons, it is recommended to use a respirator.
When applying the alkyd-urethane composition in two layers, the shelf life of the coating is 5 years... To extend this period to 7 years, experts recommend making a third layer. It is applied in the standard way after two hours of drying the previous layers.
An important note also applies to the storage of containers with primer-enamel. The product is flammable, therefore it should be stored away from possible sources of ignition. You should also restrict access to paint shelves for small children.
Conclusion
The "3 in 1" primer-enamel is a practical, effective, convenient means for combating corrosion. To get a high-quality and beautiful coating, you must follow the instructions exactly and remember about safety measures.
It is not difficult to choose a suitable alkyd-urethane rust remover, since the range of products from different manufacturers is quite wide.
