Purpose and technical characteristics of primer-enamel for rust 3 in 1

Removing rust and stopping the corrosive destruction of metal is a serious problem for any equipment, machinery, or metal product.
The range of effective products designed to solve this problem includes innovative compositions called “Soil-enamel 3 in 1”.

The formula and technical characteristics of this chemical allow you to forget about rust for a long time, and simple instructions facilitate practical use. This is confirmed by numerous reviews about different types of primer enamel.

What is it, why 3 in 1?

The classic scheme for removing iron oxides from a metal surface and further protection includes several sequential operations.

They are related to:

• applying a certain anti-rust agent,
• by washing off
• priming.

And between each stage there must be drying. Primer enamel allows you to speed up processing time and simplify the process of protecting metal.

Primer-enamel “3 in 1” is a special paint and varnish product designed to simultaneously create a protective coating and restore the presentable appearance of the surface. The prefix “3 in 1” means a triple action performed by one product.

This primer on the metal surface provides:

1. Neutralization of oxidation products.
2. Creation of a hydrophobic primer layer.
3. Weather-resistant decorative coating.

Primer enamel replaces three separate products:

• rust remover,
• primer,
• paint.

The result of the work is a beautiful, smooth coating that reliably preserves the surface and blocks access to moisture. Externally, the enamel layer can be glossy or matte (hammer). Manufacturers give the coating a shelf life of at least 5 years.

Peculiarities

When using such a primer from the PRESTIGE brand or any other manufacturer, you may encounter a number of features. Let's consider the main nuances when working with paint and varnish materials:

• in order to meet the minimum consumption, you need to choose the right tool correctly;
• when working, it is important to use a respirator, since the composition is highly toxic;
• Before applying such a coating to the surface, it must be prepared, otherwise the effect will be minimal;
• this substance hardens quickly only at low humidity, which is why it is necessary to select the appropriate atmosphere;
• This variety is suitable for use on any surface, but works best directly on metal.

Taking into account a number of these features, it is possible to correctly and rationally use such a substance for structural elements and other surfaces that need appropriate protection.

Important. It is necessary to understand that in each individual version of the primer, different technology is used, which has a direct impact on certain properties of the composition.

Composition and technical characteristics

Despite the fact that the composition of the primer-enamel includes a converter, primer and paint, it is very difficult to produce a high-quality product in artisanal conditions. This is explained by the fact that the formula of modern primer enamels is very complex .

To compose it, a banal mixing of ingredients is not enough. Primer-enamel “3 in 1” is not just “the best paint for rust”; its composition is complex, as it includes:

1. 
   Alkyd-urethane varnish . A mixture of alkyd resin and urethane additives is required as a binder base.

2. Corrosion inhibitors . They form a phosphate film, which neutralizes existing rust and stops corrosion.
3. Enamel . Provides a decorative coating that simultaneously protects the surface from atmospheric influences.
4. Plasticizers . Necessary to give the product elasticity, fluidity, and strength.
5. Solvent . Maintains the mixture in a liquid state, giving it the desired consistency.

The exact composition of different primer enamels may differ due to the set of additives. However, this does not greatly affect the general technical parameters of the mixtures and their characteristics.

All primer enamels are characterized by:

• impact resistance;
• water resistance;
• inertia;
• heat resistance;
• wear resistance;
• durability;
• aesthetics.

Any alkyd-urethane varnishes are dangerous when in contact with fire and can be toxic to humans.

When producing “3 in 1” primer enamels, manufacturers try to adhere to general technical indicators. Thus, the specific gravity of such products is 1.3-1.4 g/cc. The maximum fraction of insoluble compounds is 40 µm, and the maximum bending elasticity is 1 mm.

Review of popular manufacturers

Today, various companies are engaged in the production of such paint and varnish coating, but a number of manufacturers should be highlighted among them:

• Popular primer from the VGT brand.
• A common option from the manufacturer PRESTIGE.
• Good compositions for BRIGHT work.
• A good option for primer and enamel is Ceresit.
• The TIKURILLA composition is in good demand.

It should be understood that not all manufacturers are represented, but those who are in greatest demand among domestic buyers.

Important. When choosing a paint coating, you should take into account not only the price tag, but also the technical characteristics and customer reviews.

When is the remedy needed?

Primer-enamel “3 in 1” is effective for covering:

• metal,
• concrete,
• reinforced concrete,
• wooden,
• stone surfaces.

This universal tool is applicable for:

• 
  pipes,

• gratings,
• fences,
• stairs,
• artistic forged products,
• monuments,
• children's playgrounds,
• car parts,
• bridges,
• industrial metal structures,
• pipelines.

The product can be used for the initial coating of a new product. It is used for repainting used products that have traces of rust.

Primer-enamel “3 in 1” neutralizes oxides and reliably isolates the surface from adverse environmental factors, so it is advisable to use it for coating outdoor objects.

The use of paint and varnish chemistry of this type is justified in cases where there is no time for a long process of multi-stage processing according to a standard scheme using several means.

Where can I apply enamel primer?

The scope of application of this composition is quite wide. These are any metal structures, including:

• pipes,
• batteries,
• heating system elements,
• water pipes,
• sewerage,
• metal fencing or fencing,
• bars and gates,
• automobile bodies.

Primer enamel is indispensable for painting greenhouses, greenhouses, houses, cottages, garages, and outbuildings.

It is used at agricultural facilities: dryers and elevators.

Primer enamel can be used to coat various household items: gas stoves, speakers, metal furniture fittings, sinks, fittings and pipelines.

Primer enamel is also used in industrial facilities. It can be used wherever it is necessary to protect metal structures from corrosion.

Types of primers for metal against rust

Primer enamels differ in color. The palette of decorative anti-rust is not inferior to the artistic range of colors. Classic colors are:

• white,
• black,
• grey,
• brown.

If desired, you can find original colors for painting enamel:

• golden,
• green,
• wine red,
• red-brown
• rapeseed yellow
• blue and others.

The classification, based on the composition of anti-corrosion additives, distinguishes several functional varieties:

1. Insulating . Excellent protection from atmospheric factors (moisture, temperature changes).
2. Passivating . Effectively reduces corrosion in high humidity conditions.
3. Transformative . Capable of qualitatively dissolving rust and restoring metal.
4. Phosphating . They protect galvanized surfaces well in wet conditions.
5. Protective . They contain metal particles, therefore they form a durable metallized layer.
6. Inhibitory . They have high adhesion and excellent priming properties.

Reviews

Currently, there are various comments on the Internet regarding paint coatings. Regarding this primer option, there are the following reviews:

1. A wonderful composition that allows you to save a lot, since there is no need to purchase components separately. In general, everything is satisfactory, but such a composition is difficult to find of high quality, since it is very popular, which is why it is actively counterfeited.
2. At the moment, this is the best processing option for metal in my opinion. Thanks to this type of coating, you don’t have to look for the most compatible paints and primers. However, despite all the positive properties, it is quite problematic to choose a shade.

You should not blindly trust all comments from the Internet, as they are not always true. Often sellers write reviews for themselves, thereby increasing demand for their product.

5 / 5 ( 1 voice )

Instructions for use

The development of primer enamels has greatly simplified the work of caring for rusting materials. The high price of such paints and varnishes pays off with simple application.

The instructions require following several steps:

1. 
   Remove layers of rust from the surface using a tool or sandpaper.

2. Cleaned areas are degreased using solvent or white spirit.
3. If necessary, add a suitable thinner to the enamel primer.
4. Apply the first layer of 3-in-1 enamel using a brush, roller or spray gun.
5. Allow two hours to dry the first paint coating.
6. Apply a second layer, trying to avoid smudges and clots.
7. 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 distribute it evenly over the surface. In cold conditions, the viscosity of the composition increases, which leads to the appearance of smudges .

When mechanically cleaning rust, it is not necessary to achieve a perfectly smooth surface. A more important criterion is the final thickness of the corrosion layer. It should not exceed 100 microns. Visually, this coating is equivalent to the thickness of the blade.

Advantages and disadvantages

This type of paint coating has a number of positive and negative qualities. Let's take a closer look at the main advantages of the coating:

1. this composition dries quickly enough;
2. the necessary protective property for the surface is present;
3. minor existing corrosion is eliminated;
4. relatively low cost;
5. there is no need to buy different materials for work;
6. can be used for any purpose.

Despite a number of advantages, there are also some disadvantages. Small temperature range for operation. At high humidity, the composition hardens slowly. If used as a full coating, polishing is required.

Top 7 best and reviews about them

Both foreign and domestic manufacturers are engaged in the production of “3 in 1” primer enamels. The range of products is quite wide.

Each product has its own characteristics:

• consumption,
• type of thinner
• drying time
• price.

Prestige

Primer enamel is produced by the Prestige holding. The thickened emulsion is diluted with solvent, white spirit or petroleum xylene. For single-layer application, 125-180 g/sq.m. is required. This figure is slightly higher compared to other primer enamels.

The finished decorative layer dries in at least 6 hours . The price is lower than some analogues and averages 400 rubles per jar of 1.9 kg. A 5-liter container sells for 1,400 rubles.

All users (100%) unanimously recommend Prestige for use. Full compliance with the “3 in 1” purpose, excellent corrosion protection, and fast drying are noted. The downside of Prestige is the unpleasant smell.

Lakra

specializes in the production of paints and varnishes. This primer-enamel is used for surfaces of different quality indoors and outdoors.

The desired consistency is obtained by adding solvent or white spirit. The product consumption is economical and ranges from 80 to 120 g/sq.m.

Fresh paint dries completely in 10 hours . A small jar (0.8 kg) costs an average of 400 rubles.

Despite all its advantages, Lakra enamel primer is recommended by only 33% of consumers. The advantages include good color qualities and water-repellent properties. The disadvantages are long drying time, poor dyeability.

Kudo

Alkyd enamel is produced by the group under the Kudo brand. The paint and varnish consumption is 260-520 ml/sq.m.

The enamel is characterized by a reduced drying period between the first and second coats (10-15 minutes) . To completely dry the coating, depending on the type of spray, it takes 2 or 4 hours. A 520 ml aerosol can costs about 220 rubles.

Reviews about Kudo are contradictory: 50% recommend the product for use, the rest are dissatisfied with the quality. There is good surface protection and ease of use, but there may be problems with the spray system.

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.

The disadvantages include long drying: after applying the second layer you must wait 24 hours. The advantage is the relatively reasonable price. The cost of a 5 kg can is on average 1100 rubles.

Profilux earned a low percentage of user recommendations (33%). The advantages include price, good rust conservation. The disadvantages include a strong odor, the appearance of cracks in the coating, and uneven consistency .

Novax

Enamel primer is produced. When applied in a single layer, one liter of product is spent on 8-12 square meters . Complete drying time is 24 hours. The manufacturer guarantees the preservation of the coating for 12 years. A 3-liter jar has a price tag of 1,160 rubles.

Only 16% of users who tried Novax left a positive recommendation for using the product.

It is noted that the color indicated on the can does not always coincide with reality , and cracks appear on the new coating after winter. At the same time, primer enamel has economical consumption and does not have a very strong odor.

Novbytkhim

The developer of primer-enamel is a St. Petersburg company of the same name. To dilute the paint and varnish, you must use a solvent from the same company.

The product has a moderate consumption: 80-120 g/sq.m. A liter jar costs about 300 rubles, the price tag for a large container (3 liters) reaches 1100 rubles.

“Novbytkhim” is recommended by 45% of users, noting the high drying speed, durability and good rust coverage. The disadvantages include a strong smell . Read more about Novbytkhim primer enamel here.

Dali

The product is produced by NPP Rogneda LLC. Varieties include gloss and hammer enamel. Consumption is economical (70-100 g/sq.m), and the composition is resistant to frost and heat: storage is possible in the temperature range from -40 to +40 degrees.

If necessary, Dali is diluted with solvent or xylene . The disadvantage of this primer enamel is its high price. A large 10-liter jar has a price tag from 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 has a strong smell. You can find out more about Dali's primer enamel here.

Color ruler

Now the construction market offers this type of paint in a fairly wide range of colors: there are blue, gray and dark gray, green, black, red, white, brown colors and their shades. But production is developing, and every day you can find something new.

The paint is packaged in 1 liter and 3 liter jars (shelf life - 2 years), but if you need to paint large areas, you can buy a 20 liter plastic bucket, but its shelf life will be no more than 6 months. The cost of the paint mixture, depending on the volume, is from 250 rubles.

Where and at what price to buy?

Innovative primer enamels have long been no longer a scarce commodity. You can find the product from the selected manufacturer in:

• construction stores,
• specialized dealer centers,
• online stores.

The price of products from different companies may vary significantly. It is determined by the cost, popularity of the brand, and the pricing policy of the outlet.

On average, the cost of a liter jar of primer enamel varies from 300 to 500 rubles. Large containers are more economical per 1 liter. Five-liter cans cost approximately 1000-1400 rubles. The only exceptions are expensive brands.

The best anti-rust paint for a car

Used for quick car restoration. It is recommended to pre-clean the body from pockets of corrosion. A high-quality coating performs a whole cycle of protection - from water, oils, and chemicals. The layer is dense and does not chip when hit by stones.

NewTon

Heat-resistant rust paint in cans is considered a budget version, since one 400 ml container sells for 290-320 rubles.

NewTon

The material is available in 8 colors and can be:

• white;
• red;
• yellow;
• blue;
• green;
• gray;
• golden;
• brown.

The coating can withstand temperatures up to +600°C, while reliably protecting the base from the formation and spread of corrosion. Due to its characteristics, the product can be used for cladding not only external parts, but also elements that are located near the heat source. The maximum coverage area directly depends on the intensity of spraying - up to 2 m2, while the time interval for drying from dust varies within 7-10 minutes.

DECORIX

This is an aerosol enamel primer that performs both a decorative and protective function. It reliably protects the base from the formation and development of corrosion. This product makes it possible to significantly reduce preparation time.

DECORIX

Thanks to the packaging in 520 ml containers, the products are convenient for use in hard-to-reach places. Enamel creates a durable glossy coating that is not subject to mechanical and atmospheric influences. Acrylic mixture 520 ml costs up to 200 rubles.

VIDEO: How to paint a rusty metal surface and protect it for a long time?

Tips for selection and use

Following the instructions for using decorative primers “3 in 1” guarantees a high-quality result. However, knowledge of some processing nuances will help avoid problems.

To dilute paints and varnishes, use only the chemical that is indicated in the accompanying information for the product . But in any case, the amount of solvent should not exceed 10% of the volume of primer-enamel.

Considering the toxicity of the primer-enamel composition and the solvents used for dilution, all work on processing products must be carried out outdoors.

If the item is indoors, turn on the ventilation and open the windows. For safety reasons, it is recommended to use a respirator.

When applying an 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 drying the previous layers for two hours.

An important note also applies to the storage of containers with primer-enamel. The product is flammable, so it should be stored away from possible sources of ignition. You should also limit access to paint shelves for young children.

Precautionary measures

Since alkyd varnish, which is the main component of the vast majority of rust-resistant primers, is highly flammable, the composition should be stored in a cool place, away from sources of open flame. In addition, it is necessary to limit access to paint materials for young children.

Considering the toxicity of alkyd compounds, painting work should be performed only in a protective respirator or gas mask, avoiding paint coming into contact with the skin and mucous membranes.

The advent of anti-corrosion compounds has greatly simplified the protection of metal structures from corrosion, atmospheric influences and mechanical damage. The possibility of applying primer-enamel to surfaces affected by corrosion, without pre-treatment, can significantly reduce the period of painting work. In addition, the performance properties are noticeably higher than those of classic pentaphthalic enamels.

The classic scheme of anti-corrosion protection of metal surfaces included the following steps:

1. Mechanical cleaning of the surface from all kinds of dirt and rust. This is usually treated with sandpaper or a wire brush;
2. Chemical cleaning using rust converters, which helps to finally get rid of ingrained corrosive plaque.
3. Primer using special primers such as GF-021 or similar. Apply in one layer and wait until completely dry.
4. Protection of the prepared and primed surface with PF-115 type enamel or other metal paint.

Important! The primer layer dries within 12 hours, while the enamel layer takes at least 24 hours. The enamel is applied in at least two layers with a break of 4 - 6 hours, which in practice means that processing the metal using the classical method will take at least 2 days.

Types of primer enamels

Enamel primers are divided according to the base component.

Acrylic primer enamels

Durable finishing materials consisting of polymer resins and anti-corrosion modifying substances. They are distinguished by their versatility of use indoors or outdoors for processing metal products. They form an elastic protective film that does not crack under the influence of the environment.

Advantages:

• formation of a dense inert layer resistant to sudden temperature changes,
• the ability to adapt to deformation changes in the metal - compression or tension,
• good adhesive properties,
• does not fade from ultraviolet radiation,
• high temperature resistance,
• fire safety,
• without smell,
• absence of toxic compounds,
• large selection of colors,
• long service life,
• easy to clean from tools,
• can be applied with a spray gun.

Flaws:

• the need for thorough surface preparation before painting;
• the need to strictly adhere to recommendations on environmental temperature and humidity parameters during application.

Alkyd primer enamels

Inexpensive universal products based on synthetic resins, pentaphthalic and glyphthalic varnishes on an alkyd-urethane basis. Apply in several layers using a sprayer or brush.

Advantages:

• high adhesive properties,
• resistance to aggressive chemical elements or sudden temperature changes,
• protection against mold and mildew,
• ease of application,
• long-term preservation of color saturation,
• affordable price,
• long service life.

Flaws:

• toxicity of the material,
• the need to use personal protective equipment,
• Strong smell,
• fire hazard,
• requirement of preliminary cleaning with degreasing of treated areas.