What anti-corrosion agents are best suited for a car. Choosing the best anticorrosive for your car

What anti-corrosion agents are best suited for a car. Choosing the best anticorrosive for your car

30.04.2019

The car body is made, as you might guess, from metal. No matter how good it is, the appearance of rust and corrosion is an irreversible process. Of course, there is a way that will allow you to delay these phenomena as much as possible. Drivers prefer to use anti-corrosion for cars. This method is widely popular, but you should choose the right processing. Professionals know how to do this, but novice motorists will also need this information.

Selection Options

Before figuring out what better anti-corrosion, you need to decide on the general parameters that need to be taken into account. The tool must be selected for certain parts of the machine. Some parts are internal and some are external. For high-quality processing of hidden cavities, a tool that repels moisture, but allows air to circulate, is suitable.

If we are talking about external processing, you will need a protective agent that is resistant to a variety of mechanical influences like dust, dirt and sand. When buying anticorrosive for a car, it is important to pay attention to its quality. Confirmation quality product will be the presence of numbers, series, expiration dates and the availability of instructions for use.

How does it work?

The principle of operation is simple. Getting on the metal, the substances "eat" into it, forming a special protective layer. The bottom line is that rust does not form under this layer. If she was there, then the process stops.

If the viscosity is insufficient, it is likely that the metal will still be exposed to negative factors. environment. Regardless of which anticorrosive agent is used, the principle of operation is identical. IN this case it doesn't matter which is better and which is worse.

Application technology

First comes the step pre-training. It is necessary to determine the scope of work and prepare necessary materials. Then you need to remove all parts that make it difficult to access the surface to be treated. You will have to remove the wheels, sound insulation and other elements.

When the first two steps are completed, you need to thoroughly rinse the case so that it becomes perfectly clean. This important point. The remaining dirt will not allow the anticorrosive agent to fully process the body. Cover parts that cannot be removed with a rag. Next, a primer is applied. It dries up and the processing phase begins. It is performed according to the instructions provided by a good manufacturer.

At the stations Maintenance a special gun is used that sprays the product. If it is not, then you should initially buy funds in cans.

Types of anticorrosive

There are different anti-corrosion materials. Each has advantages and disadvantages. Below is a rating of the most popular funds, compiled by buyers.

  • 4. Tektil - applied to a completely dry surface. It dries quickly and instantly forms a protective layer. This layer is impact resistant. If the driver hooks it on the asphalt, on damaged place rust will appear soon. It penetrates under the protective coating, and the process of decay begins. The price ranges from 300 to 450 rubles. Based on the responses of people, a few were satisfied with the action of anticorrosive. There were no questions only for those who do not follow the car, but use it as " workhorse." They have a persistent, unpleasant odor.
  • 3. Anticorrosive Rust Stop can be purchased at the automotive market. The cost is low. For 1 liter you will have to pay 300-400 rubles. Provides reliable protection subject to a well-prepared body. Designed for external processing, but also used for internal. Consumers had no complaints about the quality of processing. The problem is that it is very liquid. Users noted that for a few more months it follows from all the cracks.
  • 2. Cordon is famous for its density. Used inside and outside. To bring it back to normal, you need a solvent. After mixing, it takes the necessary fluid state. User reviews say that it is pleasant and easy to work with him. Freezes quickly. The thicker, the longer this process will last. The smell disappears for two weeks, which is a fly in the ointment in a barrel of honey. One treatment is enough for a year and a half. For 1 liter you need to pay 400 rubles.
  • 1. Dinitrol is considered one of the best anticorrosives. Provides quality protection outer surfaces. If the driver accidentally damaged the protective layer, nothing will happen. No bad smell. You can buy for 400-500 rubles. The one who used such a tool is satisfied with the result. There are no negative opinions. It is noteworthy that the product falls only on the cleaned surface. Complete drying is not necessary.

The body is the part of the car that the owner worries about the most. And this is not surprising, because its replacement is an unreasonably expensive undertaking, it is easier to purchase new car. Accuracy on the road will protect you from external damage and scratches on the paintwork. As for the protection of metal from corrosion, anti-corrosion materials will help here. We will tell you more about what kind of anti-corrosion agent is needed for one or another part of the body, and about the most interesting proposals of manufacturers.

What should be a quality anticorrosive

More recently, the choice of a motorist in terms of protective autochemistry was limited to Movil, cannon fat and two or three kinds liquid mastics. Today the market offers dozens of options for processing body parts. Despite this diversity, they are divided into anti-corrosion agents designed for the treatment of hidden and external surfaces.

The first meet the following requirements:

  • high adhesive ability to smooth surfaces;
  • the ability to create an elastic film after drying;
  • chemical neutrality to metal, plastic and paint coatings;
  • the possibility of penetration into the structure of the metal;
  • fluidity sufficient to fill the slightest cracks;
  • homogeneous structure;
  • the ability to displace moisture and electrolytes from the surface.

These conditions are fully met by oil formulations. They have excellent penetrating power and are liquid for a long time, however, due to their low strength, they are not suitable for outdoor use. In addition, wax-based products are also presented in the distribution network. Like oil anticorrosive for cars, they are applied with, but they penetrate much weaker into the steel structure. The advantages of paraffin compositions are different. They fit equally well on paint and on, forming a protective film through which neither moisture nor chemicals penetrate.

A number of the requirements discussed above are supplemented by a few more points if the materials for anti-corrosion treatment of the car are used outside:

  1. Mechanical strength sufficient to withstand the blows of gravel flying out from under the wheels and the abrasive effects of dust and sand;
  2. The ability not to flake off and not crack under alternating loads and mechanical deformations of the body.

Modern anticorrosive agents extend the life of body parts and increase acoustic comfort in the cabin. At the same time, they will be able to fully express themselves only when the application technology provided by the manufacturer is observed.

Types of anticorrosives

Depending on the composition, funds for are divided into several types.

Bituminous mastics

Made on the basis of bituminous or synthetic resins, anticorrosive agents of this group cope with the conservation of body parts, slowing down corrosion processes and protecting treated surfaces from mechanical damage. To do this, corrosion inhibitors and dispersed non-ferrous metals are introduced into their composition. Mastics are applied in a thick layer - 250 - 400 microns, due to which they also perform a soundproof function.

Rubber and PVC materials

Mastic for the bottom of a car based on rubber or polyvinyl chloride is the most resistant and belongs to the deposited, since it is applied heated to high temperature condition. Materials of this class have very high adhesion and create an extremely strong, but due to the complexity of the technology, they are used in the factory.

liquid plastic

- This is an anti-corrosion paint based on acrylic compositions, which has anti-corrosion capabilities and, after drying, creates a durable protective film. Due to insufficient mechanical resistance, it is used more often to protect body parts such as sills, hidden cavities of arches, elements engine compartment etc.

Manufactured on the basis of bituminous and synthetic resins with the addition of mineral filler, shale mastic has high strength and resists abrasion factors. If you are looking for anticorrosive for the bottom, wheel arches or fenders, then the best material for self-processing of these body parts can not be found.

Anti-corrosion primer

Anticorrosive primer refers to traditional anticorrosives conditionally. This material protects the metal from corrosion and is the lowest layer of the paintwork. At the same time, the restoration of the latter is possible only after priming with materials with anti-corrosion abilities.

Already by the name it is clear that this anticorrosive is durable and is intended for protection body elements from small pebbles and gravel flying out from under the wheels. With it, protect the lower parts of the wings and doors, bumpers, sills, spoilers, etc.

The best anti-corrosion products for cars

Even if outwardly everything is in order with the car, this does not mean at all that corrosion centers have not appeared somewhere under the paint. In order to keep the body in its original form for as long as possible, you should take care of its protection in advance. Not sure what to choose for processing body parts? We offer you a rating of anti-corrosion agents, which, judging by the reviews of motorists, are the most effective and have the best combination of price and quality.

For external processing

Presented on the market huge assortment anticorrosive agents to protect the outer surfaces of a car, however, car owners and service station masters often use the following brands.

BODY 930, BODY 950

BODY brand drugs have acceptable price and good operational properties which earned them popularity Russian market. Mastic BODY 930 with a thick consistency, so that after drying it forms a strong elastic layer. Consumers note one drawback of this anticorrosive agent - low resistance to abrasion.

As for BODY 950, this agent is applied in the form of an aerosol, has increased hiding power and high penetrating power. It is devoid of the disadvantages of BODY 930 brand mastic, however, it has a higher cost.

One of the best, though not the cheapest material for protecting the bottom of a car. The anticorrosive agent made by German specialists proved to be the best in the process of many years of use. He has maximum margin strength against any impact - high humidity, ultraviolet radiation, aggressive substances, temperature changes and mechanical damage.

The drug of one of the most famous foreign manufacturers is fully responsible high status brand. Car owners note good adhesion, stable performance and elasticity throughout the entire service life. However, the disadvantages include insufficient mechanical strength of the material, which is why it is recommended to apply LIQUI MOLY UNTERBODEN-SCHUTZ in two layers.

Swedish-made anti-corrosion compound that can reliably protect the lower parts car body and does not require complete drying. The composition of the drug includes strong corrosion inhibitors, which, combined with thixotropic properties and excellent adhesion, allows you to create the most hermetic coatings. The disadvantages include perhaps a rather high cost, but this drawback is inherent in all anticorrosives of European manufacturers.

Anticorrosive Russian development, not inferior to Western counterparts, is used for processing external elements body and as a protective layer on the inner surface of car arches. The disadvantage is a persistent smell, which will take more than 10 days to weather.

Product domestic production with a low price and good anti-corrosion and sound-proof properties. The disadvantages of polymer-composite mastic of this brand include low thermal stability.

Anticorrosive for hidden cavities

When choosing an anti-corrosion agent for hard-to-reach places preference is given to those materials that reliably protect and do not create difficulties during application.

Considered one of the best means for processing joints and welds. The rubber filler makes it possible to create an extremely strong, elastic film that copes with protection from moisture and electrolytes. However, consumers note some features Hi-Gear usage- the need for careful surface preparation and application of the agent in two layers.

Movil

Anticorrosive, known since the times of the USSR, has excellent penetrating abilities and after drying forms a resistant wax coating. There are several “movils” that differ in composition, among which they choose those that dry longer. As practice shows, they provide maximum protection and durability.

Canadian-made anti-corrosion composition, which, due to its high fluidity, is universal. The low price and good penetrating ability determine the popularity of this tool among car owners. At the same time, it also has disadvantages - increased sensitivity to the purity of the base and too long stay in the liquid phase.

Like Rust Stop, it is used for processing outdoor and hidden surfaces. In addition to good anti-corrosion properties, it also has excellent sound insulation abilities. It is better to entrust the processing with this tool to professionals, since low fluidity requires special equipment and skills. The disadvantages of Noxudol 1600 include drying time (more than 3 days) and the need for additional protection of electrical wiring.

The impeccable appearance of the car may not always mean that everything is under painting. in perfect order and completely missing.

As a preventive measure to prevent the occurrence of rust, it is necessary to apply special anti-corrosion agents. They are presented on the market in a large assortment. Which one is better to choose? Understanding!

Anti-corrosion for cars: useful properties and subtleties of choice

Some car owners refuse to use anti-corrosion products in an attempt to save money. This approach is erroneous.

Repair cost or complete replacement parts will be significantly higher than the amount that was saved by refusing to buy anticorrosive. An additional advantage of the use of anti-corrosion agents is not only an increase in the service life of parts, but also the achievement of overall acoustic comfort when traveling.

Types of anticorrosive agents for various surfaces

Before purchasing an anti-corrosion agent, it is necessary to decide for which parts of the car it will be used. Depending on the place of application, there are anticorrosive agents for internal and external surfaces.

Means for the treatment of internal surfaces

Anti-corrosion agents of this group are used to treat the hidden cavities of a car: spars, door pillars, etc. They have good water-repellent properties and are used to displace moisture from closed cavities. During production, oil or paraffin is used as the main component of these substances.

In this regard, the compositions of this group are further subdivided into the following categories:

  1. Oil based formulations. After application, they retain a liquid state and fill microcracks well.
  2. Paraffin-based formulations. After drying, the anticorrosive is formed protective film. Oil-based preparations do not lose their protective properties even with strong temperature fluctuations.

Most the best option will be oil-based. They provide reliable metal protection not only in cavities, but also in joints between parts. This is due to the fact that non-drying oil compositions, unlike paraffin anticorrosive agents, will not crumble at the joints of parts due to their displacement during operation.

The main advantages of anti-corrosion coatings for internal surfaces are:

  • good grip with the car;
  • filling microcracks and other damaged areas;
  • high level of moisture resistance.

It is also worth noting that the drugs of this group can be stored for a long time.

Exterior treatment products

Anticorrosives of this group are used for processing outside car body: bottom, thresholds. During the movement of the machine, the outer parts are constantly exposed to sand and gravel. In order to protect the metal from mechanical damage, anti-corrosion agents are used for external body parts.

The main requirements for these compositions are:

  • good adhesion to car surfaces;
  • protection of the metal from the negative effects of moisture and salt;
  • protection against mechanical damage.

It should be noted that these compounds should not flake or crack. These conditions are best met by bituminous mastics and rubber-based coatings.

The main types of preparations for use on external surfaces

Anti-corrosion agents for external surfaces should well protect the car body from rust. This group includes the following categories:

  1. Bituminous mastic. The composition is made on the basis of resins. These substances preserve the metal. Reliably protecting it from mechanical damage. They also help to achieve overall acoustic comfort when traveling by reducing the vibration frequency of the body elements.
  2. Rubber based anticorrosives. Used in the factory by melting the polymer and applying it to the surface. The rubber-based product is very elastic and has high level adhesion to the car body, reliably protecting the metal from corrosion.

On sale you can find liquid plastic. But it should only be used as additional protection. For example, on the front of the hood. Applying the composition to the car body as the main protective coating is highly undesirable.

Popular anti-corrosion agents

What anti-corrosion agent is the most suitable and best for a car? This question is relevant not only for beginners, but also for experienced drivers. There is no universal material.

It is necessary to focus on your own preferences in the choice and take into account:

  1. For what places of the car will the composition be applied? There are means for processing internal or external parts.
  2. What is your budget?
  3. What are the reviews, properties and characteristics of this substance?

Below you can find the most popular means for protecting cars from corrosion. Final Choice will depend only on you.

Short review

1) Dinitrol. Country of origin - Sweden.

According to the reviews of most car owners, this tool is one of the best anti-corrosion agents and protects well. It provides reliable protection of the body, wheel arches and other external surfaces from corrosion. Has a pleasant smell. Does not require complete drying.

Prepare and clean the surface well before applying the compound. average price- 450 rubles.

2) Mercasol. Swedish anticorrosive reliably protects the metal from the negative effects of moisture and salts.

Suitable for bodywork and other surfaces.

3) 3M 08877. American anti-corrosion agent has good grip. Resistant to sand and gravel, therefore reliably protects the metal from mechanical damage. The composition has good resistance to high temperatures.

This tool is more adapted to the conditions of the American climate. During severe Russian frosts at temperatures below 20 degrees, it can become brittle. It also has a negative effect on paintwork, leaving stains on them. Be careful.

4) Waxoyl Hardwax (Mastic Waxoyl Hardwax). Country of origin - Switzerland. Well suited for processing the bottom of the body and arches.

Has high resistance to severe frosts. Economically spent - for a small passenger car one liter will suffice. Packing: 5l canisters, aerosol cans 500 ml.

5) Tectyl Body Safe, the cost of 1 liter is 800 rubles. Mastic, well protects metal from abrasive impact.

The composition is resistant to temperature extremes. Does not adversely affect paintwork.

6) Rust Stop. A Canadian preparation that protects the car body well if it has been carefully prepared and cleaned before application. The main place of application is external surfaces.

Can also be used to process internal parts car. The main drawback is that the composition is very liquid, so at first it can flow out of the cracks. The average price is 350 rubles per liter.

7) Body 930. This mastic has a rubber base. Due to its ductility, after drying, it hardens and protects the metal from cracks.

Well suited for places in the car that are most often exposed to mechanical stress. The main disadvantage is that the composition is quickly erased.

The car during its operation should regularly. Since when driving, small pebbles begin to destroy paintwork bumper and fenders of the car, moisture begins to penetrate into these first small scratches. It accumulates and corrosion processes begin.

Anti-corrosion agents are used to treat the bottom of the car, its frame, bridges and other parts of the body. This allows you to significantly extend the life of the body, and the sound of small stones becomes less audible when driving, because after high-quality processing, acoustic comfort is significantly increased.

Some car enthusiasts do not rush to apply anti-corrosion coating by car by different reasons- for some, this is a waste of money, others believe that the car can serve its due date without such intervention. But the use of special materials that fight rust and prevent corrosion is justified for the following reasons:

  1. The cost of high-quality anti-corrosion materials for car processing is always less than the cost of buying a new one. vehicle.
  2. At adverse conditions operation when the vehicle is subjected to sharp drop temperatures, problems with the integrity of the paintwork of the body can occur as early as 3 years of vehicle operation. Mastic for cars prevents the appearance of rust and cracks.
  3. When selling and passing technical inspection, a car that has been processed does not have problems, since a correctly performed procedure does not affect the license plates of the car.

What is anticorrosive?

Anticorrosive is special composition, which is applied to the bottom of the car, its wheel arches and other body cavities that are hidden from direct access. Such a tool prevents the development of corrosive processes and the occurrence of rust on the metal. All means by which metal is processed can be divided into two large groups:

  • Preparations based on a mixture of waxes.
  • Bituminous (bituminous anticorrosive).

On the basis of these preparations, many means are made to protect cars from corrosion, which, in addition to the main components, include special additives. Metal strength enhancers and corrosion inhibitors are added to wax preparations, various mixtures of metals are introduced into bituminous preparations.

Also popular among motorists are products that have a paraffin and polymer base with the addition of mixtures of rubber, plastic and rubber. In almost all products, not only anti-corrosion materials are added, but also materials that have the ability to push out accumulated moisture.

Products of this type are suitable for the treatment of body cavities where water can accumulate (for example, after washing) and which are almost impossible to dry.

The corrosion process itself can be of two types:

  1. Chemical (occurs as a result of the fact that oxygen or its compounds, which are strong oxidizing agents, act on the body of the car).
  2. Electrochemical (metal is in contact with electrolytes)

Depending on the type of corrosion, an anti-corrosion agent is selected.

Means for anticorrosive. How to choose?

All funds can be classified according to the features of application, chemical composition and place of application. There are several types of anticorrosives:

  • Bituminous mastic. Produced on the basis various kinds pitches, performs two essential functions: protects the surface of the body from mechanical influences and preserves the metal. The agent is applied in a layer with a thickness of 250-400 microns.
  • Materials based on rubber and PVC. Such an anti-corrosion agent is considered the most durable of all existing today. It is mainly used in factories.
  • Liquid plastic. It is undesirable to use it as the main tool for protecting the car body, since it does not differ in mechanical resistance.

The named anti-rust for cars is mainly used for external parts of the body and easily accessible surfaces of the car. For hidden parts of the car body, the following means are used:

  • Oil-based formulations that do not dry out. This is a liquid anticorrosive agent that remains in a liquid state after its application and during the operation of the car. This composition fills all the microcracks and scratches on the surface of the car.
  • Compositions having a paraffin base. Such materials are made on the basis of wax and after drying form an elastic film. Such a tool retains its properties well even with strong temperature changes.

Which anticorrosive is better?

Car owners who first encounter rust on the body of their car often wonder which anticorrosive to choose.


To all means that prevent the appearance of rust exhibited whole line requirements that you need to familiarize yourself with before purchasing anticorrosive. Means for the treatment of hidden surfaces must meet the following requirements:

  1. Do not harm the existing paintwork of the body.
  2. Be highly adhesive and have a homogeneous structure.
  3. Have the ability to impregnate all cracks and damage, penetrate even into places that are already affected by corrosion.
  4. Possess the ability to displace accumulated moisture and form an elastic film resistant to external influences.

Advise the most best anticorrosive for a car, even an experienced auto mechanic will not be able to, since it is almost impossible to choose one universal tool from the range of all existing tools.

Use of an anti-corrosion agent good protection body, this makes it more resistant to external damage. For example, if a car that has been in operation for a long time without anti-corrosion treatment gets into a small accident, it is likely that the corroded parts of the body may simply not withstand the load.

A corroded car has a reduced passive safety and will not be able to protect the passengers of the car and the driver from possible injuries in such a situation.

Anticorrosive for external surfaces must meet the following requirements:

  1. Protect from exposure to electrolytes.
  2. Have good adhesion ability.
  3. Be highly elastic and resistant to various mechanical stresses and deformations of the body.
  4. Be resistant to the aggressive action of small stones, gravel and sand that rises from pavement.

What anticorrosive for a car is better? The one that will meet the stated requirements will be of high quality and at the same time affordable to the car owner. Funds that issue well-known firms, are quite expensive, so you should choose the best option for yourself.

On sale today there is a special anticorrosive agent for rust. Such a tool has the ability to convert rust, since it contains special acids. Anticorrosive is used for the initial preparation of the surface of the body before the paint is applied to it.

The tool completely turns rust into a special protective film that will not need to be removed before applying paint. What anticorrosive agent can be applied to rust? An example of a tool that has the ability to remove rust is Anticor "Copper Coating".

The choice of mastic for the car

There are several popular and effective means to fight corrosion. What is the best paint for a car? The choice of means depends entirely on its properties, as well as the location and degree of damage to the body.

Movil - well protects body parts from corrosion, they can process various joints and joints of the body. Such a tool has the ability to effectively displace moisture and quickly form a wax layer with good penetrating characteristics. There are a lot of varieties of Movil, it is possible to process parts of the body with them even after using other means of protection.


Bitumen-rubber mastic - used to treat the external and internal surfaces of the vehicle body (even those that are not varnished and painted). Processing can be subjected to the floor of the cabin, the surface of the wings and the trunk of the car.

Slate mastic in most cases is used to process the bottom of the car and the outer side of the wheel arches. After application, the anticorrosive agent forms a special bituminous film, which provides complete and reliable waterproofing of the treated parts.

To process the same parts of the body, you can choose bituminous mastic. Such a tool is very resistant to temperature changes, it can process not only internal, but also external parts of the car. The layer that is formed after application is very resistant and has good elasticity. Therefore, after the procedure, the car can be safely operated in the cold season without worrying that the coating will crack or begin to peel off.

A threshold antioxidant can be used to protect doors, pillars, and other parts from environmental influences. If hidden cavities are to be treated with such a tool, they must first be covered with a special preservative compound. The preservative is practically not afraid of the already formed rust and the moisture that caused it, therefore it fights corrosion well.

For some motorists, the best anticorrosive is antigravel. It reliably protects the car body, bumper, spoilers and sills from the attack of small stones and sand from the road surface. This tool is made from rubber-based resins. Most often it comes in two shades - black and gray, on top it can be painted with other colors to give the car a more original look.

Features of working with anti-corrosion agents

It is quite possible to protect the car body from corrosion at home, it does not require special skills, money costs and a lot of time. Depending on the quality of the selected product, the applied anticorrosive layer may last for 3 years, while the car will not need additional treatments.

Most materials do not contain toxic substances at all, therefore they are safe for humans. But when working, it is still necessary to adhere to safety measures and avoid getting the product on the mucous membranes of the master.

Corrosion treatment will not affect appearance car, if all work was carried out carefully and in strict accordance with the instructions.

Periodically applied coating will need to be updated, because it is impossible to stop rust once and for all. If you use high-quality anti-corrosion materials and do the processing correctly, the life of the vehicle will increase significantly.

Do you want to know everything about car painting? Read more helpful articles:

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The modern market for car body protection materials offers motorists huge selection various means that help fight corrosion and protect the metal from mechanical damage. Such materials are divided into several categories depending on the type of application and ending with the composition from which they are made. In this article, we will try to figure out which anticorrosive agent for a car is better to choose, depending on the task.

Anti-corrosion protection of the internal surfaces of the body

This category of surfaces includes: the inner parts of doors, spars, bottoms, door pillars, etc. As you can see, all these areas are hidden from mechanical influences by the interior trim. Therefore, a number of requirements are imposed on the choice of anticorrosive for such body parts.

  1. Do not corrode the paintwork applied to the part.
  2. High adhesion.
  3. Possibility of dense filling of all cracks, chips and scratches.
  4. Homogeneous structure of the material.
  5. Protect the surface from moisture and electrolytes.
  6. Preserve heavily damaged areas with rust on the body, stopping the process of complete destruction. But in fact, it is better to clean everything up, or to weld new pieces of metal.
  7. Displacement of moisture during application to the surface.

Anticorrosive agents of this type are produced either on an oil or paraffin basis. Basically, these are non-drying products that provide a high degree of protection, including at the joints of parts and various cracks. In the case of using a non-elastic material, it may crack, and the process of rust development due to air ingress will continue again. By applying, for example, a non-drying oil-based compound, you can easily fill all the surface curves and cracks. But such materials also have a minus - they are not resistant to mechanical stress, therefore they are used exclusively for internal surfaces.

Paraffin-based, so-called wax formulations also have both pros and cons. Of the advantages, this is that they have good adhesion, both with bare metal and with painted areas of the body. They form a wax film on the surface, which retains an elastic state for a sufficiently long time. But of the minuses is also low resistance to mechanical damage.

If we talk about which anticorrosive agent for car processing from the inside is better, then we would advise you to consider oil-based options.

Also, if you want to re-treat a part and it already has a layer of oil or wax on it, then it must be cleaned off, and only then a new coating is applied, otherwise you may not notice the rust process under the old coating, and as a result it is through rot. Be attentive to this issue and follow the technology of work.

Anticorrosive for external surfaces

These areas of the body include the underbody, wheel arches and sills. The requirements for materials for protecting these body elements are already quite different.

  1. Protection of the metal surface from moisture and electrolyte.
  2. High degree of adhesion even with damaged areas of the body.
  3. Be partially elastic, but at the same time show high resistance to mechanical stress that comes from the road surface in the form of sand, dirt and stones.
  4. Have the ability to withstand small deformations of the body, which are possible when driving.

If you look at the choice automotive markets, then you can choose a large number of materials that solve the problem of protecting the outer surfaces of the metal from corrosion. One of prominent representatives are products based on bituminous mastic, corrosion inhibitors are often added to their composition and thus these materials solve several problems.

  • impact protection external environment: water, salts, chemicals.
  • mechanical resistance to the ingress of gravel, sand and other elements from the road surface.
  • with small collisions with curbs or other obstacles, good mastics also withstand, which cannot be said about the same wax compositions.
  • serve as additional sound insulation and reduce the level of vibration of the metal parts of the machine.

Such anticorrosives are applied in a fairly thick layer of about 250-400 microns.

Also, bituminous mastics are divided by consistency into drying and non-drying. Liquid mastics have reduced resistance to mechanical stress, but at the same time it is convenient to process even the most difficult sections, for example on the bottom of a car, and they retain their elasticity for a very long time. To increase resistance to damage, metals are added to them, such as aluminum and zinc. Drying mastics have a drawback - this is the likelihood of cracking in the most loaded areas of the treated surface.

Overview of specific anticorrosive agents for auto body treatment

Let's now look at a few materials that sell well on the market and discuss the manufacturers of these same products. We will give brief recommendations, and you yourself will determine what is suitable specifically for your case. All these materials will give you the answer to which anticorrosive agent is best for both a new and an old car. In fact, there is not much difference between the processing of an old and a new car, the only difference is in the process of surface preparation, the old one will need to be well cleaned and treated from rust, and on new car you can just apply the coating right away. In addition, all these materials can be applied without special equipment, with an ordinary brush or with a spray device (like for sprinkling beetles in the garden).

  1. Movil takes a long time to dry. After processing forms a protective film. You can apply with a brush in 2 - 3 layers, while we take a break for drying for about 20 minutes. It is important to apply precisely thin layers, since with a rough application such a coating will be more susceptible to mechanical stress and can be chipped off in whole layers. The rule does not work here - the more the better. It is sold in a glass container. It is characterized by the fact that it does not dry for a long time, since a fatty layer forms and, after partial drying, turns into a soft crust. But still at long-term operation vehicle, it completely dries up and needs to be replaced. It can be used both for internal surfaces and for the bottom and sills of the car. Movil drying for a long time allows you to preserve rust well, and you may not solve this problem for several more years, in case correct operation. After all, when stones hit, it can form chips, and the corrosion process will continue, such material is not resistant to mechanical damage. Be sure to use mud flaps, although they will partially remove all particles of the road surface flying off the wheels. Perfect for temporary protection of the same bottom of the car.
  2. Mastic body 930. This material is based on rubber. Apply mastic with a brush in thin layers, they can be applied more than 2 or 3. After drying, it forms a hard surface, resembling a shell, which is able to withstand almost all small stones and sand flying from under the wheels. According to reviews, you can often hear that it is damaged by a jack at a tire fitting. It is characterized by a high ability to protect metal from corrosion, and a high degree cover the surface, while not letting oxygen and water through, which preserves rust pockets. But during long-term operation of 2 - 3 years, such material is still erased, albeit partially, and all work must be carried out again. In order to extend the service life, you can additionally treat it with a thin layer of movil, and even if the hard coating cracks, the long-drying molville will fill microcracks and the risk of rust development will be significantly lower.
  3. Movil is quick-drying. Sold in plastic packaging. It resembles a watery solution that can be applied either with a brush or a spray bottle. After complete drying, it turns into paraffin (yellow coating). It is strong enough, and even able to withstand pressure washing, but mechanical damage from stones reduces it to nothing in a short time. Often used on internal surfaces, for example, under door and glass seals, underbody and fenders from inside the cabin. After all, this tool is absolutely neutral to rubber, which cannot be said about the long-drying Movil, which makes the rubber unusable. We do not recommend using it for external parts of the body.
  4. Tektil zinc body safe. This tool is twice as expensive as the previous ones. Sold in aerosol cans or buckets. From a bucket is applied to the surface with a spray gun. It's over professional tool. This is a fluid material that allows you to fill all the cracks and curved surfaces of the same bottom. The material is elastic enough and dries for a long time, but when it gains the desired consistency, it turns into a film of medium thickness, which is similarly soft, elastic and strong. When applied, it lays down in lumps, with air pores, but during drying, all the air escapes and a uniform surface is formed. Of the main features that distinguish the master is that body safe is not hard enough, but when using mudguards and a gentle operation of the car, you will solve the problem of anti-corrosion treatment for 5-6 years. The second point, they say that it is not advisable to apply it separately to old cars , high adhesion will hide the rust underneath and the same floor in the car will rot completely. In this case, they combine materials like tektyl ​​ml + body safe, or quick-drying Movil, and on top of body 930. But in any case, it is better to prepare the surface well, clean it, pickle it with chemistry from rust, prime it and only then apply anticorrosive.
  5. Tektil ml, Movil for hidden cavities. Both of these materials are used for hidden surfaces inside the car body. Tektil ml forms a stretching film, and Movil a paraffin coating. Here you already choose by price. Both materials have proven themselves well, and the same Movil is available with various additives, such as a rust converter.

After evaluating a few of these materials, you can answer several questions. What anticorrosive agent is better to process the bottom of the car? You can use for example body 930 + Movil long-drying, or tektyl ​​ml + tektyl ​​zinc body safe. For internal? Tektil ml, Movil for hidden cavities, Movil will be cheaper.

What materials are still on the market?

There are a number of other anticorrosives that are also in demand.

  • 3M 08877 (USA). It is characterized by a high level of adhesion, but at -20 degrees Celsius it becomes brittle. Well protects metal from solutions of salt and water.
  • SOUDAL ANDERBODI (Belgium). Good stability to mechanical damage and temperature changes. But this material is less resistant to salts.
  • HARDWACKS (Switzerland). Not a high level of adhesion and at -20 degrees Celsius loses elasticity. Excellent protection against salt compounds and does not affect the paintwork of the workpiece.
  • WAXOYL (Switzerland). Forms an elastic and frost-resistant film, which perfectly protects against water and salts. But with prolonged use, it is necessary to renew the coating. Characterized low flow material. Used for interior surfaces.
  • SOUDAL ML-WAX (Belgium). A protective film is formed. Used for hidden surfaces. There are problems with the fluidity of the material before drying, which complicates the process of filling all the cracks and joints of parts.
  • FERRO-BARRIER (Russia). It is characterized by a high level of adhesion, good fluidity and after drying an elastic film is obtained. For hidden surfaces. Of the minuses, it becomes brittle in the cold or when heated.

As you can see, we tried to consider the main parameters of anticorrosives, determined. That there are options for external and internal surfaces of the body. And it’s up to you to decide what anticorrosive agent it is better to treat the car with, based on the financial possibility and the specific tasks that you set for such protective coating. Share your feedback on the anticorrosives you use.

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