Do-it-yourself repair of the thresholds of the VAZ 2106

In detail: do-it-yourself repair of VAZ 2106 thresholds from a real master for the site my.housecope.com.

The question of replacing thresholds is especially relevant for “our” VAZ cars. This is due to the low quality of the body metal, insufficient anti-corrosion treatment, as well as the harmful environment in which our cars have to live. By harmful environment, I mean road chemistry used to treat roads in winter, high humidity and bad roads.

Today I want to talk in detail about how do it yourself VAZ 2106 thresholds replacement... Thanks to this photo report, you can repeat the repair of the thresholds at home, in any case, I think this guide will be useful to someone.

First of all, you need to take care of the tool, I will list only a few, the most important of them:

Welding machine.
Electric drill.
Bulgarian.
New thresholds.
Primer.
Dye.

A few words about the welding machine. The fact is that it is advisable to cook the thresholds with a semiautomatic device in an environment of carbon dioxide.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

I started by repairing the door hinges, I will not describe how to do this, since the article is about how to replace the thresholds, especially since you may have them in perfect order. Someone will ask and to the threshold of the hinge with the doors? The fact is that for proper operation you need to constantly monitor how the door will fit and what the gap between the door and the threshold will be. Sagging doors can be confusing.
After repairing the doors, you can remove them and start cutting out the unnecessary rotten part of the threshold. In my case, the replacement of the thresholds involves the mandatory dismantling of the wings, since at the same time I decided to replace them as well.
If the car body is “decrepit” or rotten, install stretch marks in the passenger compartment.
Now you need to cut off the outer part of the threshold, for this use a grinder or a file for metal, as an option a chisel is suitable.
After removing the outer part, proceed with the removal of the sill amplifier (a wide metal plate with round holes around the entire perimeter).

Video (click to play).

6. In my case, there was no amplifier inside the threshold, most likely it was removed by the previous owner of my car.

When all the rotten parts of the threshold are removed, it remains to remove their remnants that remain at the seams.
After that, you need to properly clean the surface for subsequent welding work.
Try on a new threshold amplifier, cut it if necessary.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

The holes drilled for welding are clearly visible in the photo.
Weld the sill amplifier in place using the holes in the amplifier itself. You can make such holes using a 4-6 mm drill, approximately every 5-7 cm.
For convenience, you can use clamps (clamps), with their help you can quickly and firmly fix the amplifier. Before installing the amplifier and starting welding work, you need to carefully prepare the surface of the body and any other irregularities that may interfere with a good connection.

13. Check again that the threshold is set correctly. When you decide that it is in place, start welding the threshold amplifier. Personally, I used the parallel welding method, that is, simultaneously grab both the bottom and the top, starting from the B-pillar. When the amplifier is welded, it is necessary to clean out the weld marks. You should have a perfectly smooth and even surface. Remember that the sill booster must be welded to: B-pillar, A-pillar, etc.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

14.When the amplifier is welded, you need to try on the outer part of the threshold. Here, too, everything that is superfluous is cut or folded.

15. Now prepare the outside of the sill for installation. Your task is to remove transport soil, paint, etc. from the surface as thoroughly as possible.

16. Using self-tapping screws, you need to fix the outer part of the threshold. After that, you need to hang the doors and “figure out” if everything fits together. Pay attention to the gap, it should be even and the same everywhere. Also pay special attention to the gap between the threshold and the door, nothing should protrude or protrude.

17. Welding is carried out from the B-pillar. You need to slowly move in both directions, that is, boil the bottom and top, going towards the front wing, as well as the bottom and top towards the rear wing. It should be remembered that the outer part of the sill must also be welded to the B-pillar. Pay special attention to these two places, since they form the rigidity of the VAZ 2101 body.

When everything is installed and welded, proceed to cleaning the surface, then everything needs to be primed and painted.

As they say, that's all for me! Replacing the thresholds VAZ 2101 completed, if necessary, this work can be repeated in another place that needs repair.

Read also:

Replacement of thresholds can occur due to various factors, but most often - after an accident or due to corrosion. The VAZ 2106 threshold is a structure of an outer panel, a connector and an amplifier, all of the above are spot-welded to the body. Replacing the thresholds of the VAZ 2106 begins with the removal of the rear and front doors.

Next, you need to remove the aluminum sill strip and raise the mat. Old thresholds are usually dismantled piece by piece. The removal is carried out in good faith so that no problems arise during the installation of new thresholds. Now we need a marker with which we mark the places of the chiseled welding. After this operation, we proceed to drilling the marked places with an electric drill.

We also note another, rougher method - the use of a grinder when cutting out thresholds. After that, it is necessary to start cleaning the surface from corrosion, remove rotten areas. We proceed directly to the installation of new thresholds on the VAZ 2106. First, we adjust the connector. Then - welding and cutting off a part of the amplifier, at the same time we make a small cutout near the B-pillar. We align the bottom of the amplifier and weld it to the connector.

The outer panel of the threshold is adjusted with maximum accuracy, then we adjust the threshold in place, if everything is correct, the gaps should remain minimal. We make holes for welding and fix the outer panel with self-tapping screws. The prepared holes will help to weld the bottom of the panel to the amplifier, in turn, the connector is welded to the bottom of the car. The matter is small: we fasten the metal on top of the threshold, and weld it to the bottom of the patch. The last stage is surface cleaning, which involves the application of putty, sealing of the welded seams. What remains is the primer and painting, after which the doors of the VAZ 2106 can be put in place.

To increase the service life of the thresholds, it is necessary to carry out an anti-corrosion treatment. The simplest way is to apply a special varnish, mastic or impregnation to the metal surface.

Another treatment option is electrochemical protection. We will not consider the specific advantages and disadvantages of this method, since the answers to these questions are ambiguous and it is best to carry out such procedures in a specialized service. However, we note that such protection is valid, as a rule, for 3 years. This was the replacement of the thresholds of the Vaz 2106.

The need to replace thresholds may arise after an accident, when the element receives strong deformation or due to its destruction by corrosion.In this article I will try to tell you in detail about replacing thresholds with my own hands on a VAZ 2106 car.

The threshold of the VAZ 2106 car is a structure consisting of an outer panel, a connector and an amplifier, all of them are spot-welded to the body. Before proceeding with the independent replacement of the VAZ-2106 thresholds, we need to remove the rear and front doors.

It is necessary to remove the thresholds correctly, otherwise problems may arise during the installation of new thresholds. We take a marker, mark the spot welding spots, and then drill them with an electric drill.

Then we weld, cut off part of the amplifier, and make a small cutout near the B-pillar. Align the bottom of the amplifier and weld it to the connector.

We try to fit the outer sill panel as accurately as possible, then we adjust the sill in place, all gaps should be minimal. We remove the transport soil from the welding site and make several holes for welding. We fix the outer panel with clamps or self-tapping screws. We weld the bottom of the panel to the amplifier through the prepared holes, and weld the connector to the bottom of the VAZ 2106.

It remains to fix the metal on top of the threshold, and weld the patches under the bottom. The last stage is ahead - we clean the surface, apply putty, seal the welded seams on the outer panel. Further priming and painting. We put the car doors in place.

The next treatment option is electrochemical protection. There is no definite answer to this option; it is best to perform such processing in a specialized service, where they will provide a guarantee for the work performed. The principle of operation of electrochemical protection is that electrodes are applied to the surface of the thresholds and a direct current is passed through it. The electrodes, made of a special alloy, absorb all the rust.

Such protection is valid for three years, after which it is necessary to repeat the procedure. Many car owners prefer to save money on the repair of thresholds and install plastic overlays on top of them. But this does not solve the problem, it is simply masked.

Recall that the previous article was about replacing silent blocks with a VAZ 2106 with your own hands.

The question of replacing thresholds is especially relevant for "our" VAZ cars. This is due to the low quality of the body metal, insufficient anti-corrosion treatment, as well as the harmful environment in which our cars have to live. By harmful environment, I mean road chemistry used to treat roads in winter, high humidity and bad roads.

Today I want to talk in detail about how the VAZ 2106 thresholds are replaced with my own hands. Thanks to this photo report, you can repeat the repair of the thresholds at home, in any case, I think this guide will be useful to someone.

First of all, you need to take care of the tool, I will list only a few, the most important of them:

Welding machine.
Electric drill.
Bulgarian.
New thresholds.
Primer.
Dye.

A few words about the welding machine. The fact is that it is advisable to cook the thresholds with a semiautomatic device in an environment of carbon dioxide.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

I started by repairing the door hinges, I will not describe how to do this, since the article is about how to replace the thresholds, especially since you may have them in perfect order. Someone will ask and to the threshold of the hinge with the doors? The fact is that for proper operation you need to constantly monitor how the door will fit and what the gap between the door and the threshold will be. Sagging doors can be confusing.
After repairing the doors, you can remove them and start cutting out the unnecessary rotten part of the threshold. In my case, the replacement of the thresholds involves the mandatory dismantling of the wings, since at the same time I decided to replace them as well.
If the car body is "decrepit" or rotten, install stretch marks in the passenger compartment.
Now you need to cut off the outer part of the threshold, for this use a grinder or a file for metal, as an option a chisel is suitable.
After removing the outer part, proceed with the removal of the sill amplifier (a wide metal plate with round holes around the entire perimeter).

6. In my case, there was no amplifier inside the threshold, most likely it was removed by the previous owner of my car.

When all the rotten parts of the threshold are removed, it remains to remove their remnants that remain at the seams.
After that, you need to properly clean the surface for subsequent welding work.
Try on a new threshold amplifier, cut it if necessary.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

The holes drilled for welding are clearly visible in the photo.
Weld the sill amplifier in place using the holes in the amplifier itself. You can make such holes using a 4-6 mm drill, approximately every 5-7 cm.
For convenience, you can use clamps (clamps), with their help you can quickly and firmly fix the amplifier. Before installing the amplifier and starting welding work, you need to carefully prepare the surface of the body and any other irregularities that may interfere with a good connection.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

14. When the amplifier is welded, you need to try on the outer part of the threshold. Here, too, everything that is superfluous is cut or folded.

15. Now prepare the outside of the sill for installation. Your task is to remove transport soil, paint, etc. from the surface as thoroughly as possible.

16. Using self-tapping screws, you need to fix the outer part of the threshold. After that, you need to hang the doors and "estimate" whether everything fits together. Pay attention to the gap, it should be even and the same everywhere. Also pay special attention to the gap between the threshold and the door, nothing should protrude or protrude.

When everything is installed and welded, proceed to cleaning the surface, then everything needs to be primed and painted.

As they say, that's all for me! The replacement of the VAZ 2101 thresholds has been completed; if necessary, this work can be repeated in another place that needs repair.

To your attention step by step instructions for replacing the threshold VAZ 2106

Video (click to play).

First of all, you need to take care of the tool, I will list only a few, the most important of them:

Welding machine.

Electric drill.

Bulgarian.

New thresholds.

Primer.

Dye.

A few words about the welding machine. The fact is that it is advisable to cook the thresholds with a semiautomatic device in an environment of carbon dioxide.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

I started by repairing the door hinges, I will not describe how to do this, since the article is about how to replace the thresholds, especially since you may have them in perfect order. Someone will ask and to the threshold of the hinge with the doors? The fact is that for proper operation you need to constantly monitor how the door will fit and what the gap between the door and the threshold will be. Sagging doors can be confusing.

After repairing the doors, you can remove them and start cutting out the unnecessary rotten part of the threshold. In my case, the replacement of the thresholds involves the mandatory dismantling of the wings, since at the same time I decided to replace them as well.

If the car body is "decrepit" or rotten, install stretch marks in the passenger compartment.

Now you need to cut off the outer part of the threshold, for this use a grinder or a file for metal, as an option a chisel is suitable.

After removing the outer part, proceed with the removal of the sill amplifier (a wide metal plate with round holes around the entire perimeter).

6. In my case, there was no amplifier inside the threshold, most likely it was removed by the previous owner of my car.

When all the rotten parts of the threshold are removed, it remains to remove their remnants that remain at the seams.

After that, you need to properly clean the surface for subsequent welding work.

Try on a new threshold amplifier, cut it if necessary.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

The holes drilled for welding are clearly visible in the photo.

Weld the sill amplifier in place using the holes in the amplifier itself. You can make such holes using a 4-6 mm drill, approximately every 5-7 cm.

For convenience, you can use clamps (clamps), with their help you can quickly and firmly fix the amplifier. Before installing the amplifier and starting welding work, you need to carefully prepare the surface of the body and any other irregularities that may interfere with a good connection.

Do-it-yourself VAZ 2106 thresholds replacement - detailed instructions

14. When the amplifier is welded, you need to try on the outer part of the threshold. Here, too, everything that is superfluous is cut or folded.

15.Now prepare the outside of the sill for installation. Your task is to remove transport soil, paint, etc. from the surface as thoroughly as possible.

When everything is installed and welded, proceed to cleaning the surface, then everything needs to be primed and painted.

As they say, that's all for me! Replacing the thresholds VAZ 2101 completed, if necessary, this work can be repeated in another place that needs repair.

Read also:

Replacing the hood of a VAZ 2101 with your own hands - detailed tools
Self-replacement of ball joints VAZ 2107 (upper and lower)
Do-it-yourself VAZ 2110 windshield replacement

See also the video how to replace the thresholds of the VAZ 2106 with your own hands:

The appearance of corrosion, numerous chips, dents and microcracks in the paintwork is not a complete list of problems that the owners of VAZ 2106 cars have to face. Despite the complexity of many damages, they are repaired by their own hands.

Body repair VAZ 2106 has the following types:

Redecorating. The paint and varnish coating, bumpers are restored, scratches, chips and foci of corrosion are eliminated.
Treatment of internal cavities. Side members, sills, door and luggage niches are difficult to access for anti-corrosion treatment. To prevent the parts from rusting, they are treated with special protective agents.
Car bottom treatment. The working surface is covered with special protective mastics.
Removing dents. Various impact pads, spoons, hooks, suction cups and reverse hammers are used to level the dented area.
Body overhaul. It is carried out in case of violation of the geometry of the vehicle body, excessive damage to the paintwork, the presence of a large number of dents, chips and scratches. Also, a major overhaul is necessary when corrosion spreads over more than 50% of the surface area of the vehicle body.

When carrying out restoration work, take into account the specifics of the car body.

Lada of the sixth model has a sedan body type, it consists of a main supporting all-metal frame and various attachments. Units and parts that are installed on models from the classic series are made with the stamping method, and are interconnected by welded seams.

The body includes the following parts: engine frame, front fenders, roof, floor panels, left and right sidewalls. The front and rear bumpers are chrome-plated; they are attached to the body with special brackets. The trunk and hood are quite bulky.

As for the doors, they are made of two panels: external and internal, they are connected by welding. Both front and rear doors have the same type of attachment to the body.

On the six models produced in the mid 90s and early 2000s, the body metal is thinner compared to cars that were produced between 1976 and 1990.

Numerous chips and scratches, dents, the appearance of corrosion require timely elimination. The body repair of the VAZ 2106 is performed using straightening: dents are leveled, rust removed and the paintwork of the car body is restored.

To complete the work, you need to prepare the vehicle, and stock up on the necessary set of tools. Before straightening, assess the degree of damage to the car body, wash, dry and degrease the working surface.

To carry out work on the restoration of the body of the "six", we need the following set of tools:

A set of hammers of different types and weights. Rubber mallets and percussion tools with grooved working surface.
Special hooks.
Reverse hammers.
Impact spoons.
Jack.
Anvils and substrates in various shapes and sizes.

You should also stock up on wrenches for 8 and 22, as well as a screwdriver. You will need these tools to remove schematic bodywork such as bumpers or decorative moldings.

The body straightening of the VAZ 2106 is performed immediately before painting the restored part:

The surface to be treated is cleaned of dirt, washed, dried and degreased. Remove old paint from the work surface.
With frequent, gentle hammer blows, the dent is smoothed out. If the defect is deep, then the process is performed from the edge of the damage, and gradually moves to its center. Metal substrates are placed on the reverse side of the area to be restored. They must be properly shaped.
Metal breaks are repaired using a welding machine. Next, the weld is grinded.
The area restored from damage is covered with putty. It levels the work surface.
The putty part is sanded and painted.

The putty should be applied in a thin layer. Otherwise, the paint will become covered with numerous cracks and begin to fall off.

Thresholds on a VAZ 2106 in the course of long-term operation of the car become covered with rust and, as a result, rot. To replace damaged body elements, the following sequence of actions is performed:

They remove the doors, remove the rugs, dismantle the aluminum plate.
Remove the rusted body element. To do this, use sills, dismantle with a drill, and cut out of the mount with a grinder.
They clean the work surface from dirt, remove rust.
Next comes the installation of new thresholds. For this, the connector is welded in place of the dismantled parts.
After adjusting the elements to size, they are welded to the car body.
At the end of the work, an overlay is attached to the thresholds, it is primed and painted.

When performing repair work to replace thresholds, wash the pad, remove corrosion from it, remove the old paint and primer.

When carrying out a do-it-yourself overhaul of the VAZ 2106 body, first of all, you need to pay attention to the condition of the car bottom, including the side members. They represent the main load-bearing element of the entire structure. On a car, they are located on the bottom, and are the length of the entire vehicle.

The side members can be displaced as a result of violation of the geometry of the body, and burst due to mechanical damage. If the part is displaced, it is "restored" in place. To do this, use a jack or cable, which is tied to a post or tree, and the other end of the rope is fixed to the spar. Then the car is pulled with small jerks, and the element being straightened is tapped with a hammer. After completion of the work, additional beams are welded to the side members, since the restored part requires reinforcement.

Corroded elements are cleaned to remove dirt and corrosion. With the help of a welding machine, metal patches are made on the surface, welded seams are ground and the part is processed. Also, by welding, the cracks of the side members are eliminated.

To increase the durability of the VAZ 2106 car body, the body, bottom and hidden cavities are treated with special compounds. Anti-corrosion agents are divided according to the area of their application:

Movies are suitable for the treatment of cavities.
Wax mastics, PVC compounds or "liquid" plastics are used to treat the surface of the car body.
Bottom anticorrosives - bituminous and oil mastics.

When performing rust protection, a number of nuances are taken into account:

To gain access to the hidden cavities of the car, use standard technological holes, or drill them yourself. In this case, the cavities are plugged to protect against negative environmental influences.
When corrosion appears, it is removed with a metal brush, and only then anticorrosive is applied to the rusty place.
Car processing is performed as a prevention of the appearance of corrosion and rust.

Installing wheel arch liners will protect the vehicle fenders from corrosion.VAZ 2106 is one of the oldest domestic models, it began to be produced in 1976, and only in 2006 the car finally rolled off the assembly line. The car is repairable and reliable, which allows you to repair the vehicle yourself.Replacing the thresholds of the VAZ 2107 is an operation that sooner or later has to be carried out with most cars. The reasons for this may be:

poor quality anti-corrosion treatment;

Image - Do-it-yourself repair of the thresholds of the VAZ 2106

humid climate;

road chemistry;

condition of roads.

Self-replacement of the VAZ 2107 thresholds requires certain qualifications in welding and the availability of the appropriate tool.

The following tools and materials are required:

Electric drill.
Bulgarian.
Semi-automatic welding.
Primer.
Dye.
New thresholds for the VAZ 2107.

[tip] In addition, in the process of work, you will have to use standard tools available from any master: pliers, tape measure, metal cheeks and so on. If the threshold amplifier is rotten, you will have to buy a new one. [/ Tip]

Old rotten thresholds have to be cut off with a grinder. To provide access to the entire surface of the threshold, the doors must be removed. If the body is decrepit, spacers must be installed before removing the sills. Further operations are performed in the following sequence:

Instead of paint, you can use an anti-corrosion coating such as "Gravitex".
After replacing the thresholds, they must be subjected to anti-corrosion treatment, "blowing" the inner surface of the boxes with "Movil". If this is not done, the thresholds will have to be replaced again in the near future.
The lower part of the thresholds (along with the bottom of the machine) should be treated with anti-corrosion bitumen mastic, which prevents corrosion and improves the protection of the paintwork from damage.

[/ tip]
Now you know how to independently replace the thresholds of the VAZ 2107. If you do not have the necessary qualifications of a welder or there is no welding machine, it will not be possible to replace the thresholds. In this case, it is better to seek help from professionals who can replace thresholds quickly and efficiently.

In addition, we remove the aluminum sill strip and slightly raise the rug. It is best to dismantle the old thresholds in parts, we start work under the front door, then go to the rear door and at the end we dismantle the threshold under the B-pillar. It is necessary to remove the thresholds correctly, otherwise problems may arise during the installation of new thresholds. We take a marker, mark the spot welding spots, and then drill them with an electric drill.

Another method is rougher - we cut out the sill mounts with a grinder. After that, we thoroughly clean the surface from corrosion, remove the rotten areas. Now is the time to start setting up the new threshold. First of all, we need to fit the connector. Then we weld, cut off part of the amplifier, and make a small cutout near the B-pillar. Align the bottom of the amplifier and weld it to the connector. We try to adjust the outer sill panel as accurately as possible, then adjust the sill in place, all gaps should be minimal. We remove the transport soil from the welding site and make several holes for welding.We fix the outer panel with clamps or self-tapping screws. We weld the bottom of the panel to the amplifier through the prepared holes, and weld the connector to the bottom of the VAZ 2106. It remains to fix the metal on top of the threshold, and weld the patches under the bottom. The last stage is ahead - we clean the surface, apply putty, seal the welded seams on the outer panel. Further priming and painting. We put the car doors in place.

In order for the new thresholds to serve as long as possible, we carry out their anti-corrosion treatment. The easiest way is to apply a special varnish, mastic or impregnation to the metal element. However, it should be borne in mind that truly high-quality processing products cannot be cheap, and besides, they need to be applied in a thick layer. You can, of course, apply a cheap mixture, but it is not a fact that it will be compatible with the material of the threshold.
The next treatment option is electrochemical protection. There is no definite answer to this option; it is best to perform such processing in a specialized service, where they will provide a guarantee for the work performed. The principle of operation of electrochemical protection is that electrodes are applied to the surface of the thresholds and a direct current is passed through it. The electrodes, made of a special alloy, absorb all the rust. Such protection is valid for three years, after which it is necessary to repeat the procedure. Many car owners prefer to save money on the repair of thresholds and install plastic overlays on top of them. But this does not solve the problem, it is simply masked.

Nightmare! It seems that people are unsubscribing to the topic to jerk off.
The man asked how to change the thresholds and he was advised to sell the car, told how rotten it was, etc.

You take off the door seals. With a drill for 8, you drill the welding points along the entire length of the box, from above and below.
In the area of the front, rear and middle pillars, you make cuts with a grinder, marking on a new box.
You cut down an old box with a chisel. You fit a new one, boil it through the holes of the hole.
Need to replace the "boot" of at least one of the wings. The box is then adjusted under them.

Change boxes one at a time. It is advisable to prime the iron before welding.

Nightmare! It seems that people are unsubscribing to the topic to jerk off.
The man asked how to change the thresholds and he was advised to sell the car, told how rotten it was, etc.

Change boxes one at a time. It is advisable to prime the iron before welding.

Read the topic here o. sc & start = 80.

Another method is rougher - we cut out the sill mounts with a grinder. After that, we thoroughly clean the surface from corrosion, remove the rotten areas. Now is the time to start setting up the new threshold. First of all, we need to fit the connector. Then we weld, cut off part of the amplifier, and make a small cutout near the B-pillar. Align the bottom of the amplifier and weld it to the connector. We try to adjust the outer sill panel as accurately as possible, then adjust the sill in place, all gaps should be minimal.We remove the transport soil from the welding site and make several holes for welding. We fix the outer panel with clamps or self-tapping screws. We weld the bottom of the panel to the amplifier through the prepared holes, and weld the connector to the bottom of the VAZ 2106. It remains to fix the metal on top of the threshold, and weld the patches under the bottom. The last stage is ahead - we clean the surface, apply putty, seal the welded seams on the outer panel. Further priming and painting. We put the car doors in place.

In order for the new thresholds to serve as long as possible, we carry out their anti-corrosion treatment. The easiest way is to apply a special varnish, mastic or impregnation to the metal element. However, it should be borne in mind that truly high-quality processing tools cannot be cheap, and besides, they need to be applied in a thick layer. You can, of course, apply a cheap mixture, but it is not a fact that it will be compatible with the material of the threshold.
The next treatment option is electrochemical protection. There is no definite answer to this option; it is best to perform such processing in a specialized service, where they will provide a guarantee for the work performed. The principle of operation of electrochemical protection is that electrodes are applied to the surface of the thresholds and a direct current is passed through it. The electrodes, made of a special alloy, absorb all the rust. Such protection is valid for three years, after which it is necessary to repeat the procedure. Many car owners prefer to save money on the repair of thresholds and install plastic overlays on top of them. But this does not solve the problem, it is simply masked.

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