How to remove rust from a car

Removing rust from a car body - step-by-step description from “a” to “z”

Before removing pockets of rust from the body, it is necessary to wash it thoroughly so that the surface of the car is perfectly clean. The fact is that on a dirty surface, the affected areas are difficult to see, and without complying with this requirement, it is impossible to perform high-quality subsequent finishing and protect the metal from corrosion.

Rust appearing on the body greatly harms not only the aesthetic appearance of your car

They will protect the chassis and save you money, increasing ground clearance by 3 cm.

If the corroded area is difficult to access due to other parts, they must be dismantled. This could be a bumper, molding, turn signal, emblem, etc. In addition, the surfaces around the rust-affected area must be covered with masking tape so as not to damage them during work and not to stain them with paint. This is where the preparatory steps end.

To quickly and efficiently get rid of rust on a car body at home, you need to prepare the following set of tools:

an angle grinder or even a regular electric drill with a special attachment in the form of a metal brush;
sandpaper with abrasive P120, P600 and P1000;
“Tsinkar” type rust converter;
degreaser;
polyester resin for lamination and fiberglass.
anti-corrosion primer;
fiberglass putty;
putty without filler (finish);
dye.

It must be said that there are repair kits for sale to combat rust, such as Zinkor-Auto. They contain three components - a rust converter, a degreaser and an anti-corrosion coating, usually made of zinc. Such kits allow you to eliminate small areas of corrosion.

As you know, there are two methods of combating corrosion:

mechanical;
chemical.

The greatest effect can be achieved if you fight rust comprehensively. Therefore, further we will use both methods at once.

We begin work by mechanically treating the rusty areas. To do this, it is better to use a grinder or an electric drill, since cleaning it yourself is quite difficult and time-consuming. Rust must be removed along with old paint and a layer of old primer, i.e.

it is necessary to work until clean shiny metal appears not only on the rust-affected area, but also on the area around it, about a centimeter or two wide.

When the surface is clean, sand the surface with P600 sandpaper, and if necessary, sand hard-to-reach areas by hand.

If you don't have a power tool on hand, you'll have to remove the paint by hand. To do this, use sandpaper with P120 grain. Then clean with sandpaper grade P600.

If the metal is rotten through and through, it is necessary to expand the hole to the “living” metal. Then treat the prepared surface with a rust converter.

The chemical will get rid of even microscopic traces of corrosion.

Comprehensive rust control

Shake the mixture thoroughly before using it. Then use a spray bottle, brush, or even a rag to apply the liquid to thoroughly wet the surface.

After this, stop working and wait until the composition is completely dry.

Next, work the surface with a wire brush to remove any remaining converter that has not reacted, as well as the converted sandpaper.

To obtain the greatest effect, the procedure must be repeated. At the end of the work, the treated area should be thoroughly rinsed with water and then wiped dry with a cloth. Please note that this is a mandatory requirement that cannot be neglected.

Using this principle, treat all rusty spots on the surface of the car.

So, we successfully coped with the removal of rust. Now it is necessary to immediately begin anti-corrosion treatment of the prepared area, otherwise within a few days new traces of corrosion will begin to appear on the surface. We begin the work by wiping the metal with a degreaser. To do this, simply soak rags in the liquid and then wipe the stripped metal with them.

Next, you need to apply anti-corrosion primer to the surface. It will not only protect the metal from corrosion, but also improve adhesion between the base and the putty or paint material. The primer is applied using a sprayer or a regular brush.

After the first layer has dried, apply a second layer and then a third. Read more about using primer in the manufacturer's instructions. The fact is that different primers have their own nuances that must be taken into account when applying them.

Thus, treat all areas that have been cleaned from corrosion with a primer.

After this, you need to seal the holes, if, of course, there are any. Use fiberglass putty to fill a small hole. Apply it with a spatula as you would on a regular solid surface. Due to its fairly thick consistency and the presence of fiberglass in the structure, it will not fall into the hole.

When everything has been tried, chemical compounds go into battle

If the hole is larger, 2–3 cm in diameter, you can glue masking tape to the back of the metal. If the hole area is large, i.e. more than 3–4 cm in diameter, it can be covered with fiberglass, which is glued with polyester resin.

To do this, first cut out a patch from fiberglass so that it overlaps the undamaged metal by 5–10 centimeters. Then mix the resin with the hardener, usually the latter is added in an amount of 3% of the amount of resin.

Keep in mind that the resin has a pot life of about 10 minutes before it hardens and sets.

Therefore, immediately after mixing, apply it with a brush to the prepared surface and attach a fiberglass patch to this area. Coat the surface of the patch with resin so that it is completely saturated with it.

After the resin has hardened, it must be sanded with sandpaper to remove all large irregularities.

Then apply a thin layer of finishing or universal putty to the surface, trying to smooth it out as carefully as possible. After drying, sand the coating with zero-grit sandpaper.

Next, the surface must be thoroughly cleaned of dust. To prevent stains from appearing under the paint and to ensure that the paint itself adheres well, apply another layer of primer to the surface.

After hardening, the soil must be sanded using “zero” sandpaper, previously soaked in water.

After this, the prepared surface needs to be painted. To repair a small area, you can use spray paint.

If you need to touch up a very small area, you can use a repair pencil with paint or paint in small tubes, which is sold with a brush, like women's nail polish.

At this point, the repair of the car body is actually completed. The only thing is that you can apply varnish over the paint and then polish it.

Finally, we suggest you familiarize yourself with some useful tips for removing rust:

the best quality of removing corrosion mechanically can be achieved using a sandblasting machine, since it allows you to process even the smallest pores, but does not change the thickness of the metal;
to remove rust chemically, you can use indelible converters that convert rust into a protective film suitable for applying finishing materials;
if rust removal is carried out manually, moisten the sandpaper in white spirit, which will slightly increase the efficiency of the work;
If you don't have a rust converter, make your own. To do this, add 15–20 grams of oxalic acid to two liters of water, as well as a little citric acid and baking soda. Apply the resulting liquid to the area affected by corrosion and wait 3–5 minutes. Then the surface must be rinsed well;
Instead of a degreaser, you can use regular dishwashing detergent;
When removing rust, break off a piece of paint from the car and save it, it will allow you to accurately match the paint to the color of the body.

These are, perhaps, all the main points, knowing which you will be able to carry out high-quality repairs to the body of your car even at home.

Source: http://tuningkod.ru/chistka-i-uxod-za-avto/chistka-kuzova-i-salona/kak-ubrat-rzhavchinu-s-kuzova-avtomobilya-svoimi-rukami.html

Removing rust from a car body with your own hands

To remove rust from a car body, it is not at all necessary to contact a company car service center. Many car enthusiasts can remove small stains of corrosion and chipped paint on the car body, doors or hood with their own hands. Removing rust from the body will extend the life of your car and improve its appearance.

Pockets of rust on the body can appear both from the “aging” of the car and as a result of careless handling of it. For example, once you open the door carelessly, the chips are right there. It’s unclear what to do about this: repainting a door is expensive, and driving with them is fraught with consequences.

Also on our website you may be interested in the following articles:

And so, we propose to consider the main ways to independently remove rust from a car body.

How to remove rust from a car body with your own hands

There are several ways to get rid of rust on a car body, but in this material we will look at only the two simplest methods that almost every car enthusiast can handle with his own hands.

Removing rust mechanically;
Removing rust using an electrochemical method.

The first method is very cheap, but at the same time more labor-intensive, and the second is quite simple, but the cost of the materials used can sometimes be slightly higher than in the first case.

After removing the rust, it will be advisable to paint over the damaged area on the car body, regardless of which of the methods listed above you choose.

For these purposes, in many cases, cosmetic enamel in the form of a small bubble with a brush, reminiscent of nail polish, is excellent. You can select such enamel to match the color of the body using a fan catalog available in any car shop with a car paint department.

The procedure for removing rust by mechanical and electrochemical methods, as well as their advantages and disadvantages, we will consider below.

Removing rust from a car body mechanically

Removing rust mechanically involves cleaning areas susceptible to corrosion to bare metal using sandpaper or a wire brush.

After cleaning, such places need to be treated with a rust converter and painted over.

Advantages of mechanical rust removal:

The ability to remove large areas and complex areas with “swelling” of paint, active “raised” corrosion;
Everything you need to remove rust can be bought at any automotive or even hardware store;
Low cost of materials used.

The disadvantage of this method of dealing with rust is that it is quite labor intensive, as well as the duration of the process itself.

To remove rust mechanically we will need:

any rust converter;
masking tape;
a little sandpaper;
cosmetic enamel;
rags for washing and cleaning.

If the damaged areas are severely corroded, then you need to use coarser sandpaper (grain size 120) or a wire brush. But in most cases, fine sandpaper with 400 or 600 grit will be enough to remove rust.

The operating procedure is as follows:

Before starting work, wash the car thoroughly so that all damaged areas are clearly visible - instructions on how to properly wash the car.
Using sandpaper or a brush, the rust must be cleaned down to bare metal. You should not get too carried away with this process, so as not to remove the paint near the damaged area.
The cleaned surface must be wiped and, if necessary, degreased (depending on the rust converter you use).
Cover with masking tape the parts of the body adjacent to the damaged area that will not be treated.
Treat the prepared area with a rust converter to protect the metal from the spread of corrosion in the future. Most of these preparations convert rust into primer, which improves paint adhesion.
After the rust converter has completely dried, tint the repair areas with cosmetic enamel.

The last sixth point refers to small-area damage. If large areas of the body elements were subject to rust (for example, sills or cavities under bumpers), then cosmetic enamel is not enough - these places will have to be puttied, primed and painted. For more information on how to do this, see our car painting instructions.

Removing rust from a car body using an electrochemical method

By electrochemical method of rust removal we mean carrying out redox reactions on damaged areas of the body in an electrolyte solution under the influence of electric current.

At first glance it seems that this is very difficult. But in fact, this process is the simplest and most reliable way to get rid of rust and protect the body from corrosion for many years.

Advantages of the electrochemical method:

Complete removal of rust from damaged areas of the body;
Application or restoration of a protective layer of zinc using the electrolytic method;
Safety for car paintwork, due to the absence of phosphoric acid in the solutions;
The result is achieved in a short period of time - no more than an hour for everything;
Easy to use.

Among the disadvantages, we can note that the technology of electrochemical metal cleaning does not allow one to cope with large areas of through corrosion without additional technical means (cold welding, soldering, etc.).

In auto stores, a Zinkor-Auto kit for local removal of rust and subsequent galvanizing of the body surface costs about 1,500-1,600 rubles, but in many online stores you can buy it cheaper.

The set includes:

Solution No. 1 for degreasing and rust removal;
Solution No. 2 for applying a protective zinc coating;
Electrode No. 1 made of stainless steel for surface preparation;
Electrode No. 2 with a zinc tip for applying a protective coating;
Connecting wire;
Instructions.

The kit is designed to process up to 1 square meter of surface.

The process of removing rust using an electrochemical method is simple (see video below):

We connect the connecting wire with an alligator clip to the car battery, and the other end to electrode No. 1 from the kit;
We wet the connected electrode No. 1 in solution No. 1 to degrease and remove rust;
Using smooth, uniform movements, we clean the metal surface from any remaining dirt and rust, after which we wash off the remaining solution with plenty of water;
We connect electrode No. 2 to the wire and wet the electrode swab in solution No. 2;
Using light, uniform movements of the electrode, apply solution No. 2 over the entire working surface until the surface of the stripped metal darkens and becomes more matte.

To apply a durable protective layer up to 15 microns thick, 2-3 minutes is enough. The whole process is clearly shown in the video below.

Video: how to get rid of rust on a car body using the “Zinkor-Auto” kit

Source: https://unit-car.com/diagnostika-i-remont/199-kak-udalit-rzhavchinu.html

How and with what to remove rust from a car body

Removing rust from a car body with your own hands is a serious matter that requires elimination, because it significantly spoils the appearance and, if the source is not removed in time, it will spread further.

Many people believe that only professionals at a service station can remove rust from a car body. However, it is not.

It is quite possible to cope with this trouble on your own if you know all the intricacies of the process and follow certain rules.

Corrosion on the body

Causes and locations of rust on a car body

There are many reasons why rust occurs. All cars are made of metal and are subject to corrosion processes and the appearance of rust on the surface.

There are a large number of factors leading to the occurrence and resistance of the surface to these damages.

In order to prevent and eliminate the appearance of rust, you need to know what causes it and understand how the process of metal rusting occurs.

The climatic conditions of the region of operation play an important role in the occurrence of rust. The higher the humidity and rainfall, the higher the likelihood of corrosion on your car. In the subtropics, the appearance of rust on cars is quite common, but residents of the equatorial belt are luckier.

Temperature changes are another risk factor. The reason for everything is banal condensation, which forms not only outside, but also in hidden places of the car, thereby contributing to the appearance of rust, because it loves moisture so much.

The better the road surface, the less likely it is for corrosion to occur. Everything is simple here. When the car moves, the body is subject to the mechanical impact of small stones, which, falling on the surface, damage the paint layer. Damaged paint allows moisture to reach the unprotected metal, which leads to rusting.

Salt and chemicals used in winter also negatively affect damaged areas of the body.

Fans of all kinds of tuning who decorate their “iron friend” with various attachments should worry about the safety of their “horse”. All these attached “bells and whistles” violate the integrity of the protective coating and increase the accumulation of dirt and dust. All this contributes to the emergence of new foci of corrosion.

How can I delete

How to get rid of rust on a car body is of interest to more than one driver who has encountered a problem, but wants to fix everything with his own hands, rather than take the car to a service station.

There are only two ways to prevent corrosion:

mechanical;
chemical.

In the first case, problem areas are removed using instruments, in the second - special preparations. Sometimes both of these methods are combined.

Mechanical rust removal

Popular folk remedies and methods in the fight against rust

If you are interested in how to remove rust from a car with your own hands, you can hear about many techniques and methods. Someone takes the car to specialists and picks it up when it’s ready. Some people try to do everything on their own. Let's consider the most popular folk methods of combating such ailments as corrosion:

Mix vinegar and lemon juice. Mix them in equal proportions and apply for an hour and a half. Next, you need to wash off the mixture and dry the surface.
Place potatoes sprinkled with salt on the stain for about fifteen minutes.
Mix baking soda and water to form a thick paste and apply for 20 minutes.
Dissolve Alka-Seltzer tablets and treat the problem surface.
Ketchup or tomato paste will deal with small corrosive areas in fifteen minutes.
Soda, the most popular is Coca-Cola.

Mechanical protection method

The method of independently mechanically removing rust on a car is the most effective. It can remove almost any damage of a corrosive nature. Unlike the chemical method, even deep bugs can be removed mechanically. The mechanical method allows you to eliminate the problem, if not forever, then for sure for several years.

Surface degreasing

Execution steps:

cleaning damaged areas from rust;
metal cleaning and grinding;
degreasing the surface;
puttying;
soil covering;
fine grinding;
body painting;
finishing varnish.

To clean the corroded surface, you will need a special sandblasting unit. When treating the damaged area with sand under pressure, no dents are left, so the process of further filling will be faster.

When cleaning large areas, use a grinding machine. Carefully remove the damage using a fine-grained nozzle. You should not use coarse-grained discs, because in combination with high rotation speeds of the grinder, you can make a through hole in the body.

Disc brush for drill

Sandpaper is used for sanding. Be sure to use it correctly. First coarse-grained, then gradually reduce the grain size.

When cleaned properly, you should be left with clean, shiny metal.

The work of removing rust is divided into several stages:

Washing the car and thoroughly inspecting the body for damage.
Cleaning off old paint and removing rust using a sander.
Degreasing.
Treatment with a special rust remover and degreasing again.
Use fiberglass putty to treat large corrosion holes.
Puttying and drying.
Application of three layers of anti-corrosion primer.
For minor damage, you can skip the puttying process and proceed directly to priming.
Treating the soil with wet sandpaper.
Degreasing.
Surface painting.

Surface painting

https://www.youtube.com/watch?v=THjWdmOE6sA

We looked in detail at how to remove rust from a car body. If everything is done correctly, such a problem as a rusty car will not affect you for many years. Processing will take several days. It should be noted that rust from the surface must be removed without leaving a residue, otherwise the problem will return again and very quickly.

Method of getting rid of corrosion by chemical means

Rust can be removed from a car body using a chemical method. It is good because it significantly saves time and effort spent on this procedure. But there are also disadvantages: it is not suitable for complex cases, since if the surface is deeply damaged, the chemical reaction may not proceed completely, but only to a depth of about 1 mm.

A special agent is applied to the corroded area to remove rust from the surface. The components of the drug react chemically with iron oxides and eliminate them. You should work carefully, using personal protective equipment, since the products are very aggressive.

The end of the effect of the drug can be noticed by the characteristic gray coating that forms on the treated surface. At the end of the work, wash it off with plain water.

Recently, special chemical compounds have been produced - the so-called primer converters, which do not need to be removed after the rust removal process is completed. They are even specially applied under paint as a primer to protect the body.

Rust converter 0.5 l

How to remove “saffron milk caps” and “bugs”

“Ryzhiki” and “bugs” are the same notorious rusty spots that, spreading over the surface, mercilessly corrode the metal of the car body. A cluster of many small stains is much more difficult to deal with than one large one. In addition, these spots have the property of not spreading in breadth, but growing in depth, which complicates the control process.

“Bugs” with “saffron milk caps” are removed in two ways:

mechanical;
chemical

The mechanical method of removal consists of cleaning the surface, priming it, puttying and painting. For chemical removal, special preparations are used.

Before removing the “bugs”, you need to check how deep the damage has gone. The chemical method is not effective for deep rust exposure. They cannot remove deep damage.

Mechanically, it is necessary to remove corrosion to bare metal. It is advisable to treat the body area to a shine.

Vehicle prevention and protection

Do not neglect preventive methods of protection against rust. It's much cheaper and faster than removing rust from a car. Moreover, rust stains, like fungus, grow quickly and bring a lot of trouble and material costs.

Coating a car with anti-gravel film

There are very real and simple prevention methods that will help avoid this problem. For some reason, some car owners stubbornly ignore them and don’t use them:

anti-corrosion treatment and protection of the underbody of the car;
coating the hood and roof above the windshield with anti-gravel film;
regular visits to the car wash;
inspecting the car for the level of cleanliness;
using fender liners and mudguards located on the wheels.

Please note that rust detected and removed in time will save a lot of your time and money. After all, preventing and eliminating a problem at the initial stage is much easier than dealing with the consequences. If you start the process of corrosion of the car body, you will have to spend a lot of effort for serious repairs, which also require repainting the car body.

Source: https://1000sovetov.ru/article_kak-i-chem-ubrat-rzhavchinu-s-kuzova-avtomobilya

How to remove rust from a car body: instructions and prevention

Many car owners encounter rusty spots. The degree of their manifestation most often depends on the integrity of the manufacturer. Even at the factory, workers must apply an anti-corrosion layer - galvanization.

If rust has become noticeable, then it is advisable to start fighting it as early as possible. Even after a few months the situation will be more difficult to salvage.

The corrosion process will progress, and this already threatens expensive body repairs.

Content

What affects the appearance of rust and where they most often appear

“Saffron milk caps,” or as people also call them, “bugs,” appear due to exposure to water, air and static electricity. Based on the above, we can conclude that there are significant reasons for the occurrence of rust:

the presence of microcracks in the paint layer;
insufficient treatment with anti-corrosion agents;
influence of chemical reagents;
sand, pebbles, mud.

By highlighting the main situations when the process occurs, we can determine the most common places where unpleasant rust occurs:

The hood usually suffers from cars in front. In any case, every car enthusiast has seen flying stones, they just kill this part of the body, and sometimes reach the roof. We damage the thresholds and fenders ourselves.

These body parts come into most contact with substances harmful to the coating - dirt, sand, stones and reagents. By the way, the installation of non-standard wheels and tires contributes to a greater development of the corrosion process.

In some cars, only a slight localization of rust is visible, in others throughout the body. The second situation usually occurs with a car after an unsuccessful auto body repair.

Efforts to eliminate them will have to be made much more than when dealing with one or two stains. The owner will have to make a serious effort, as the amount of work is quite large. Every bug is usually not a superficial problem.

The corrosion process tends to develop deeper into the metal.

Ways to eliminate "saffron milk caps"

Today, the car owner is offered two ways to eliminate the problem:

mechanical method - involves several steps: stripping, priming, puttying and coating with final layers of paint and varnish;
The chemical method is the use of rust converters and means for galvanizing the body.

You cannot do without the use of a mechanical method if the situation is advanced. All traces of rust are carefully cleaned down to metal. It will be a huge plus if everything is cleaned to a shine.

The chemical method will be a win-win for the formation of corrosion in hard-to-reach places. These can be the inner parts of the arches and the curves on the bottom.

Depending on the product used, during processing the rust may turn into foam or harden, in which case the chemical layer will become a protection against external factors.

In the first case of anti-corrosion coating, you will only have to remove the foam with a dry cloth or the same cloth, but moistened with water. What effect you want to get from the product is up to each individual to decide for themselves; the attached instructions will help.

Before starting work, it is worth assessing the degree of damage to the body by rust and determining whether the actions will cost only chemicals. There are often cases when corrosion has eaten the metal to holes or there is too thin a layer of metal left. In such a situation, a whole range of welding work or sealing of holes using putty and fiberglass will be required.

Step-by-step set of mechanical works

Correct and unhurried implementation of the process according to these instructions will help you forget about car rust for 1 - 2 years. So, let's define the main work:

Preparation of tools and materials.
Primary cleaning of damaged areas.
Degreasing.
Soil layer.
A layer of paint.
A layer of varnish.
If necessary, polish.

List of tools and materials:

sanding machine or paper;
rust converter;
degreaser (solvent);
primer with anti-corrosion properties;
selected paint color (same with other parts, in a can);
varnish that does not have pigment (in the form of a spray can);
in reserve - automotive putty (with hardener).

So, the work is carried out according to the following plan:

Cleaning can be done with a sandblasting tool, a drill or a grinder with a special attachment, and there is also an always available option - sanding by hand. Thus, we peel off the affected layers down to the metal, do everything carefully with smooth transitions and avoid the appearance of rough scratches. The service life of the repair depends on the thoroughness of the first step.
Apply a converter layer. This step will remove any remaining rust. Sometimes we don’t notice it, but small particles definitely remain after cleaning. Typically, this procedure can take about 30–40 minutes.
Degrease the surface with a solvent.
We make the repaired area perfectly level. We fill all the unevenness in the form of scratches with putty in several layers. Each layer is dried according to the instructions and sanded. We sand with paper with different percentages of abrasiveness, this will help achieve the desired result.
Let's get to the fun part. We cover the surface of the body within a radius of 1 m with film or paper, and secure everything with masking tape - this is a kind of safety measure so that liquids do not spray onto the entire body. We ensure the absence of dust and small debris.
When choosing soil, you should pay attention to the color. We settle on the option with a color close to the body, that is, for a white car there is no need to use black primer. Apply the material in 2 – 3 layers. Spraying is carried out horizontally at a distance of 20-30 cm from the surface, excluding sagging and drips. Dry each layer for 15 to 20 minutes in the summer; in other cases, use the instructions.
We paint the car. Spray paint and varnish onto the designated area. The application technique is similar to spraying a primer (same number of layers and maintaining the distance).
The final step is to apply car polish. It will smooth out all visible imperfections after painting. We suggest the application method - with a suede cloth or a special soft attachment on the tool.

Chemical method of control

This method eliminates preparatory work on surface cleaning. According to the manufacturers, this product eliminates rust and prevents its reappearance. The chemical is applied for 30–40 minutes, then removed with a cloth or washed off. This method is good for the initial stages, otherwise for advanced cases you will still have to clean, putty and polish.

How to remove saffron milk caps and bugs

Today there are no known miracle cures for removing rust stains. “Ryzhik” only seems like a trifle. The entire corrosion process is hidden underneath.

In the goods market you can find Anti-Rust paste, the same converter. The use of such a product will clear the surface of visible red marks, but it will not be able to defeat the outbreak. This method is good before selling the car, since the appearance of stains is noticeable within 2 to 6 weeks after applying the paste.

Some individuals manage to prolong the effectiveness of the product. They additionally apply varnish on top of the paste. This trick would be appropriate if the converter managed to erase all traces of rust, which happens in rare cases.

When a car is dear to you and you are not going to sell it, then it makes sense to think about physical work on the car. Use one of the methods for deep rust removal.

Preventative measures to prevent corrosion

We offer car owners a certain list of actions that will help prevent the entire preparatory and painting procedure described above:

frequent car washing, not excluding the winter season (a plus will be the application of wax, which can significantly increase protection from adverse external factors);
tracking the initial signs, their minor repairs to a minor area will eliminate large costs and time;
providing the car with mudguards and fender liners;
applying anti-corrosion material to the bottom of the car.

All recommendations for eliminating “bugs” and rust will help even a beginner cope with the repair. Correctly assess your strengths and do not put it off for later. A good result is only possible with the right approach.

Video

Source: http://autoiwc.ru/other/kak-ubrat-rghavchinu-s-auto.html

How to remove rust from a car body

Often the car owner is faced with the question of how to remove and remove rust from the car body. And if you purchased a used car, then this problem must be solved immediately.

If the rust spots are not too large, then they can be removed at home and without overpaying money at a car service center.

The car has several problem areas that need to be checked periodically to avoid corrosion, these are:

Wings
Frame
Bottom
Thresholds
Doors
Wheel arches
Inner and outer surfaces of the hood
Inner and outer surfaces of the trunk
Places of contact between the body and the overhead elements
Areas of floor under seats
Areas of the floor under the driver's feet

Before you start removing rust from your car, you need to prepare it. To do this, you need to wash it well and dry it. After washing the car, wipe it with a dry cloth to avoid stains from drops. The car must be perfectly clean, streak-free and well dried. The next step is to choose how to remove rust.

Methods for removing rust

There are two main methods: mechanical and chemical. Let's consider these methods in more detail.

Mechanical method

Many people prefer it due to the fact that residues of chemical reagents that can disrupt adhesion with paint or putty do not settle on the metal. This method is carried out using a tool specially designed for such work. For mechanical cleaning you need to use:

Sandblasting installation. Treating the surface with fine sand under very high pressure gives an excellent effect. Sandblasting will not create dents on the surface like other tools. Therefore, you will have to putty less. But unfortunately this method is not available to everyone.

Cylindrical grinder (grinder) . Used when cleaning large areas. Many people think that coarse wheels are suitable for cleaning rust, but this is not true. It is better to use fine-grained ones, since at high speeds of the grinder, in one pass you can remove a thick layer of metal and make holes where there were none initially. There is no need to rush, wipe the area from dust more often and inspect it. If there is no rust, then you did an excellent job.

Metal brush. You can use a hand brush and a drill brush attachment. Of course, the best option would be a drill brush; it will save you time when working with large areas.

Sandpaper. At the beginning of the work, we will take a coarse grit (about 120), then significantly reduce the grit to 400 and 600. Some people prefer numbers 100, 80 or 40, but this is a mistake. Well, if you have a lot of time and putty, then you can use such numbers, since they leave deep scratches. Primer and paint will not hide them, only putty.

If you did everything correctly, then after mechanical cleaning you will get clean metal. That is, a surface with a metallic sheen, without any defects or protrusions.

Chemical method

This cleaning method is carried out using chemicals. Even if you use an expensive and good product, it is recommended to do mechanical cleaning before using it, since no product will smooth out the unevenness on your car. Chemical rust removers can be divided into two classes:

Henchmen. These are funds that are always available on the farm. In first place are liquids with high penetration ability: vinegar and kerosene. Such products are suitable for those people who believe that folk remedies are better than any modern drugs for removing rust. You need to thoroughly moisten the rag and wipe the problem area with rust several times. Then leave the cloth on the treated area for about two hours. Then wipe the surface again. Well suited for hard-to-reach places where mechanical cleaning is impossible.

Rust converters . These are products that are specially produced by industry in bottles or cans. Depending on their composition, they can dissolve rust and create a surface protective layer. There are also complex preparations. All cleaners are based on phosphoric acid, which is very effective in removing rust. As a result of the action of such drugs, iron oxides are converted into a durable phosphate layer, which further prevents the formation of rust.

Removing rust

Since people consider the mechanical method to be the more common method, let’s talk about it. The work of removing rust can be divided into several stages. Let's get started:

We wash the car well and determine areas for treatment.
We clean the old paint and remove rust with a grinder or a metal brush. We use no coarser sandpaper than 120. If you use less, you can scratch the body and you will have to putty more.
Degrease the surface.
We treat it with a rust remover and degrease the surface again.
Large holes from corrosion are treated with putty with fiberglass and, after drying, sanded. Level well to a smooth surface and degrease.
Then we apply regular putty and wait for it to dry. We also level it to a smooth surface and degrease it.
Now we apply anti-corrosion primer. We make three layers with a drying break of about 15 minutes.
If the holes and scratches are small, you can immediately apply primer without putty.
We treat the soil with wet sandpaper and wait for it to dry.
Degrease well.
And the last stage is painting.

It may take 1-2 days to remove rust from a car part. It must be remembered that rust must be completely removed. If you miss an area or treat it poorly, the problem may appear again very soon.

You can also remove rust at a car service center. But it’s better to do it yourself, as you will definitely be sure that the work is done with high quality and conscientiously.

In any case, it’s up to you to decide whether to take the car to a car service center or remove the rust yourself.