Pulling complex dents pdr with polishing. Dent repair PDR technology

Pulling complex dents pdr with polishing. Dent repair PDR technology

21.11.2020

Damage to the car body is always painfully tolerated by vehicle owners. Not only is the car damaged, it also entails considerable material costs. Therefore, drivers are trying to have essential items in their arsenal that will allow them to independently repair a car and save money. One of the indispensable tools is PDR – Paintless Dent Repair. This is a unique equipment that allows you to repair a dent on the body. In other words, if there is damage on the surface, but the paintwork is not deformed, you can safely use the tool.

Basic moments

In the modern world, a PDR tool is used to repair damage to a car without deforming the paintwork. It allows you to quickly and efficiently return the car to its marketable condition, as well as eliminate the imperfection of any car model. The principle of operation of the tool is based on the vacuum method, thanks to which the presentability of the machine is restored in a matter of minutes.

PDR tool, paintless dent removal

The use of the tool is relevant when a car collides with buildings, another vehicle or a pole; on impact or hail. PDR is not afraid of dents of various shapes and sizes. If, when damaged, the paintwork has retained its original appearance, then it will not be difficult to repair the body. Otherwise, the application of PDR is useless.

The tool is based on many varieties of steel (from 8 or more). You can buy products in the car market with a variety of characteristics.

Technology principle

Repair of dents on the car body is carried out in two ways: from the inside or from the outside. PDR technology allows you to remove damage of any complexity.

To influence the dent from the inside, “hooks” are used, which have a different configuration and shape. The work is carried out according to the principle of a lever - there is an impact on the deformed area from the inside. As a rule, for repair it is not necessary to dismantle the casing or the damaged part. The process is carried out through the technological hole. Accordingly, the surface must be brought to its original state.

The process ends with surface treatment. This can be done using cores or polish the body.

Paintless dent repair

With glue

Sometimes it is impossible to work from the inside, then the process is carried out from the outside. In this case, the adhesive method of exposure is used. With the help of hot glue, caps of various shapes and areas are glued. Using a special hammer or lifter, the dent is pulled out by the caps. At the end of the process, the hot melt adhesive is removed with a special solution. This method allows you to pull out the entire dent or most of its area.

For successful work, you should carefully calculate where to glue the caps. This will help the master, who previously performed this type of work.

Preparatory stage

All work that the owner of the car does on his own must be carefully considered and prepared for them. To begin with, you should carefully inspect the damaged area in a lighted place. It is important to examine the paintwork: it must not be damaged!

How to understand that the application of the PDR is impossible? You should pay attention to the following factors:

  • Damage to paintwork.
  • Old upholstery.
  • Work is not possible from the inside.
  • The previous processing was done poorly.
  • The presence of a strong crease in the metal.

Paintless car dent removal

If the above problems have passed the owner of the car, then he can safely make PDR repairs a tool.

What tools will be needed

Without special tools and lighting, it will be impossible to perform work using PDR. For better visibility of damage, contrasting illumination with parallel lines is used. It allows you to see the smallest details of the dent relief. If the surface has little damage, a portable option is acceptable. Otherwise, the backlight should be on the entire wall.

The main tools for auto repair using PDR are:

  • Mushrooms of different sizes.
  • High strength polymer mini lifter.
  • Glue sticks.
  • Scraper and heat gun.
  • Kern.
  • Primer or solvent for removing hot melt adhesive.

Reverse hammer body 2.3 kg

The owner of the car can purchase a ready-made dent repair kit.

The PDR set consists of special tools made from different types of alloys with high strength. Glue is used from the manufacturer. It does not damage the paintwork, is easy to remove and has a high level of adhesion. Each kit comes with instructions that you need to read carefully.

The standard dent repair kit includes:

  • Glue gun.
  • Glue.
  • Suction cups of various diameters.
  • Bracket.
  • Solvent.
  • Damage removal tool.

There are kits of different manufacturers and configurations on the market. The cost of cases also varies significantly.

Straightening process

Step by step, the straightening process can be performed as follows:

  • Repair begins with surface preparation. You need to free it by removing everything superfluous (handles, mirrors, etc.).
  • The first step is to install the lamp. Good lighting is the key to quality work.
  • After that, a lever is selected and pressure is applied to the damaged area from the inside. So that the metal is not transferred, the work is done carefully and calmly.
  • With the help of a special hammer, the dent is brought to an ideal state.
  • After completion of work, it is recommended to polish the car using an abrasive paste or a fine abrasive.

Thus, you can put your car in order yourself with minimal time and money.

Paintless dent removal using PDR technology

Thermal recovery

There is a body repair using heating. Of course, large dents cannot be removed, but a simple and quick method will help get rid of minor deformations. After installing the damage leveling using the PDR method, it is enough to heat the desired place using an industrial hair dryer. When heated, the metal expands and becomes more ductile, which makes it easier to restore the shape.

Any process should be approached thoughtfully, weighing every detail. In case of severe damage to the body, heat treatment is not applied, as this will only exacerbate the problem and cause additional damage to the coating.

Direct mechanical action

The direct impact procedure is much more complicated than the previous one and involves the use of various tools (clubs, hooks). This method is useful in case of damage to bend elements or stiffeners. The implementation of the procedure is possible using the adhesive method. Using a tool, the dent is squeezed out from the inside until the metal returns to its original state. This method is laborious and requires considerable effort.

Direct mechanical action

In what cases is it worth doing such a repair?

You can decide whether it is worth doing repairs using the PDR tool by visually inspecting your car. In the place of the dent there should be no metal breaks, damaged attachment points and the paintwork should be intact. Dents in doors, roofs or fenders can easily be removed with a PDR tool, other damage needs to be carefully examined and a decision made whether to repair them.

It is almost impossible to restore the body after a serious accident.

Technology Benefits

By purchasing a body repair tool, the buyer has the opportunity to:

  • save money and time for repairs;
  • choose a nozzle for a specific type of dent;
  • comfortable to work with the tool.

Car body repair without painting

The main advantages of working with this tool are:

  • high-quality surface repair under normal conditions;
  • no need to repaint or putty the car body;
  • the possibility of repair in 70% of cases;
  • cost-effectiveness compared to body repair in auto repair shops.

Due to the fact that the paint is not subject to changes, color mismatch after repair is excluded.

Making a minilifter

The minilifter is the main tool with which dents are pulled out. It can be made using the following materials: a small metal tube, pins (the first one is 20 cm long, two are 12 cm long, the other two are 8 cm each), nuts, a welding machine, rubber pads and brake pads.

It is necessary to cut a groove in a metal pipe, 3 cm high, 1 cm wide, below which a pin should be welded. 2 more pins are welded from below, thus, a handle is obtained. The body of the minilifter will be attached to the frame, it is made from old brake pads (the bottom of the product is glued with rubber pads). A tube with a nut is welded to the 20-centimeter pin and a cut is made on the part. Behind the pin, put on a spring and cut a groove in it at the height at which it will be on the tool body. The resulting product must be inserted into the middle of the body and fixed with a nut. A 12 cm pin is welded to the existing handle, completing the composition. The work is completed by collecting parts into a single tool.

    In large cities with heavy traffic, minor damage to the body due to light collisions is common. Repairing a dent thus obtained usually requires, among other things, painting work. At the same time, the original factory paintwork of the machine body suffers.

    Many motorists, in order not to spoil the coating, agree to drive through the streets of the city for a long time in a car with a damaged body. They will be pleased to know that now they have the opportunity to quickly get rid of the traces of these unpleasant “kisses” on the body of their car. At the same time, even the slightest trace of a dent will not remain, and the paintwork will not suffer at all.

    PDR technology (DOL)

    Paintless Dent Repair (in Russian - removal of dents without painting) is a relatively new service for the Russian market, provided by some car services. But those who managed to use it, were very pleased with the result.

    This method was proposed back in the distant 50s by the German Oskar Flyge. PDR was used by the Mercedes-Benz factory. The spread of this technology in those years was hampered by several factors at once: secrecy, the high cost of equipment, the high thickness of the metal used by the then automobile industry to create bodies.

    In the 90s of the last century, these barriers disappeared and PDR began to spread throughout Europe and the United States.

    With minimal time and consumables, this technology gives an amazing effect. Therefore, perhaps she is destined to replace other methods of eliminating minor dents in the car body.

    Essence of technology

    The process of paintless dent removal consists in the fact that levers of various configurations are introduced into the technological holes of the machine under the body. These levers, operated by a technician, apply pressure to the dent from the inside of the body. Additional methods are also used that “pull out” dents from the outside. To do this, a special fungus is glued to the dent area. Pulling this fungus, the master evens out the dent. The special glue used for this is removed from the surface of the car without leaving any traces.

    When performing these works, putty or straightening is not used. This technology allows you to restore the body to its original, factory appearance, completely removing all traces of a dent without resorting to painting the damaged area. Thus, the appearance of the car is restored completely.

    PDR technology can be used to restore the geometry of car body parts only when the dent did not cause damage to the factory paintwork. This is the only condition that allows painting-free restoration of the geometry of machine parts.

    Due to the use of fewer consumables than other dent repair technologies, PDR is more cost effective. In addition, paintless repairs take much less time than repairs with painting. A small dent left in an easily accessible place can be repaired in as little as 15 minutes. Of course, this is the easiest case. But even the most complex repair (large dents, hard-to-reach places) using PRD technology will take no more than 2-4 hours. For motorists, this is a definite plus - there is no need to part with your vehicle for a long time.


    Htool kit for PDR technology

    As for the cost, it is reduced by about two times, compared with the price that will be repaired by a similar damage using traditional technology. The selection of the right paintwork material and its application on the body is a rather expensive pleasure. It is not uncommon for situations when the necessary paint is not available at the service station or in the car service. In these cases, sometimes you have to wait several weeks for the necessary materials to arrive.

    In addition, this procedure requires the replacement of part of the factory coating. And the presence of repainted parts in the design of the car significantly reduces the cost of the car when reselling it. Even if you manage to perfectly match the paint and varnish composition, and the externally painted place will not stand out against the background of the entire body, there is a special device that determines the thickness of the paintwork, which cannot be deceived. So the repainting of the damaged area will be noticeable anyway. This is another indispensable plus of PDR technology for a car owner who needed to fix a dent.

    Also, PDR technology usually does not require the dismantling of car body parts. Only in exceptional situations (when there is no physical opportunity to get close to the damaged elements) such a need arises. Less chance of damage to the integrity of the factory assembly is another advantage of paintless dent removal.

    Video on how to remove a dent with your own hands using PDR technology:


    Do-it-yourself PDR tool kit:

small ≈ 2000 rub.

5 door ≈ 2500 rub.

≈ 3000 rub.

≈ 5000 rub.

You can estimate the cost of repairs by the photo Send to WhatsApp

Car dent removal prices.

COST OF REMOVING AND STRAIGHTENING DENTS WITHOUT PAINTING
Elimination of small dents on the car body without taking into account the dismantling of parts
A dent up to 3 cm in size. from 800 rub.
A dent up to 5 cm in size. from 1200 rub.
Dent up to 8 cm. from 1700 rub.
Removal of dents of special complexity, depending on the stretching of the metal and the location, without taking into account the dismantling of parts
A dent up to 3 cm in size. from 1300 rub.
A dent up to 5 cm in size. from 1700 rub.
Dent up to 8 cm. from 2300 rub.
A dent up to 10 cm in size. from 3000 rub.
Dent up to 15 cm. from 4000 rub.
A dent up to 20 cm in size. from 4500 rub.
Dent up to 30 cm. from 5000 rub.
A dent larger than 30 cm. from 6500 rub.

Please note that the price depends on the size, shape, location and inaccessibility of the dent.

Dent removal

Which of the motorists at least once did not encounter a minor traffic accident, as a result of which dents remain on the car body? The situation is extremely unpleasant - not only does the dent spoil the appearance of the car, but also if the dent is not removed in time, the body will gradually be exposed to the negative effects of corrosion, since in any case the paint layer is broken, even if this is not visually visible . Restoring a damaged part and painting it again is quite expensive, since it must be removed, repaired and completely painted.

Modern body repair technologies

Paintless restoration

But thanks to modern technology, in most cases, you can get by with much “less blood”. There is such a thing as paintless dent removal, based on PDR (Paintless dent repair) technology, which implies vacuum pulling of the damaged area. This technology makes it possible in 90% of cases to do without subsequent painting, since the damaged area is “pulled out” with the help of special equipment for a long time, from 1 to 20 hours. This eliminates the deformation of the paintwork, as it can crack from a sharp change in the surface geometry.

Thanks to PDR technology, small dents in easily accessible areas of the body, such as the hood, fenders, doors, roof, and so on, can be restored not only without painting, but even without first dismantling the body part. Despite the fact that the procedure is quite long in time, it is still faster than restoring the body by the traditional method, since the dismantling of the part, cleaning the old paintwork, puttying, priming, painting and polishing, as well as mounting the part back take several days.

PDR technology is the best option in case of a small dent or, for example, if the car body is damaged by hail. Such damages are eliminated simply and in a short time, as a rule, within a day.

Dent Removal: Advantages and Benefits

Compared to traditional repairs, dent removal is more cost-effective and much faster in time. Such a body repair takes a maximum of a couple of days, and if the dent is small and located in an accessible place, then even a few hours. Therefore, you will get your car back almost immediately and no one will notice that it was recently damaged. Our specialists have extensive experience in dent removal of any type, size and complexity, and are ready to professionally and in a short time to carry out all the work and return the car to its original appearance.

Local body repair

For complex dents formed with sharp edges and chipped paintwork, we perform local body repairs. In this case, the restoration of dents is performed as follows.

The body part is removed, the damaged area is cleaned and prepared for restoration work. After the damaged area is restored, the part is repainted and installed on the car. The cost of such repairs depends on the nature of the dent, the thickness of the metal, location, type of paintwork and a number of other factors. In some cases, you can get by with only local painting, especially if the dent is located in the lower part of the body - our specialists will be able to make a smooth transition over the paint and there will be no noticeable border between the new and old paintwork.

What is PDR technology?

How does paintless dent removal equipment work?

Unfortunately, every car owner, even the most accurate, sooner or later faces such an obvious problem as a dent. It can be a dent from flying debris on the road, from careless parking, snow falling from the roof, or from natural disasters such as hail. Doesn't matter! The fact remains, there is a small dent, but I don’t want to paint it in any way. Yes, and they ask for a lot of money for this, and even paint the whole detail ... In general, some frustration.

But technology is developing, including body repair. So, imagine for a second that you can not paint a dent, but simply squeeze it out. Don't believe? Let me tell you the story of such an exciting technology for removing dents without painting called Paintless Dent Repair (PDR or PDR in Russian).

The history of the emergence of PDR technology


This story began in the 60s. Oskar Flyg and Henrich Nüssle were employees of the Mercedes factory. During the next exhibition, they repaired cars. which were damaged by visitors during the exhibition. Oskar Flyg squeezed out small dents with a hammer handle, preparing the car for painting, but he managed to do it so finely that no further painting was required (up to this point, all body defects required painting). This was one of the first applications of this technology on painted elements and became the starting point in its development.

Of course, at the moment, technology does not stand still, and how the tools looked before and what the technology consists of now are two different things. So, what does the technology look like now and what systems does it include:

Hook system

The first system we come across is the (most obvious) hook system. When working with hooks, the dent is straightened by influencing the defect from the inside of the part (squeezing the dent).


Adhesive system

The next, most popular among beginners self-learning how to remove dents without painting is the glue system, one of the simplest. The glue system includes such components as glue, glue adapter, reverse hammer, minilifter, reverse hammer and many other auxiliary tools. In this case, the straightening of the dent occurs by influencing the part from the outside, in other words, gluing into the dent. One of the top tools in this system is cold glue, very popular among experienced craftsmen.


Restraint system

Of course, when squeezing and pulling out a dent, you may encounter the fact that bumps appear, peak pluses. The backing system is designed to remove these extra bulges. When upsetting, cores, stemmers, and blending hammers are actively used. The upsetting system works by tapping the pins, that is, the impact from the outside.


Blending

Blending is a subsystem of upsetting, the impact on the dent from the outside by the method of upsetting the pins at a distance, due to which the dent rises.


Surge system

The next system is the surge system. It includes trowels and counter supports, or cushions for lifting. It works by hitting the tangential surface of the metal with a trowel, creating a stop on the inside of the dent.


Accessories for PDR

For comfortable work, of course, one cannot do without the widest component - these are accessories. This includes such important and indispensable equipment as various fasteners, tape winding, stops, puffs, screens, nozzles, plugs and much, much more.


Paintless dent remover

An innovative solution when working with cars with a large area of ​​small damage, for example, after a hailstorm, was the device for induction impact on a dent. The Swiss-made THOT Box induction device has established itself as the most reliable and convenient to use. The principle of operation of the inductor consists in a magnetic head and point heating of the metal, due to which the dent is pulled out. The main advantage when removing a dent with an inductor is the absence of reinforcing work, since the impact on the defect comes only from the outside of the part.


Dent removal light with PDR technology

And last but not least, one of the most important components of a paintless dent removal kit is, of course, lighting. Why? Everything is very simple here, if you do not see a defect, then you do not repair it. At present, the German manufacturer Nussle has become a breakthrough in the light direction, namely a six-lane lamp with an innovative diffuser and a tripod thought out to the smallest detail and a control system. With reliable and professional light you will see and eliminate even the smallest defect.


Main advantage technology is the fact that the dent is removed without painting the part, which means that when reselling, no one will be able to see that you had a dent, the car does not go into the status of a bat.

The second important point is repair speed and cost. On average, the repair of one dent takes 15-30 minutes, which is much faster than even local painting. And the cost of repairs is many times less, since practically no consumables.

No risk of color mismatch, smudges and a thick layer of putty.

No special boxes required and a big place. One box is enough for the entire tool and for repairs.

Paintless dent removal technology is a new opportunity in body repair with a huge number of advantages for both customers and craftsmen.

Even masters of traditional body repair will be able to find a lot of interesting things for themselves to facilitate their work and speed up work during painting work.

In our center we are ready to offer you a full range of services in the field of paintless dent removal.

Here you can pick up a decent tool with the longest quality guarantee, of course, repair your car and learn innovative technology. Masters come to us from all over Russia and cities such as Moscow, St. Petersburg, Yekaterinburg, Kazan, Krasnodar, Nizhny Novgorod, Novosibirsk, Rostov-on-Don ... and from all over the world: CIS countries, Israel, England, USA, Canada , Estonia and many, many others. And for the duration of the entire training, we will provide you with accommodation;)

We are waiting for your visit!)

Did you have a dent in your car after careless parking? Or did the hail pass and leave damage on the roof? According to the classical technology, puttying is necessary for leveling, and then painting the repaired part. Or even a replacement of a tin element with an inevitable subsequent coloring. Although in this case it is quite likely that the price of the car will decrease in the secondary market, because there will be traces of repairs. At least in the form of a thicker paintwork, which, in our time, is easily checked with a special device.

But it is possible to repair the PDR, and painting is not required. The advantages are obvious - there will be no traces of repair, neither in the form of a thickened layer of paint (and putty), nor at the joints of parts. At the same time, the total time spent on repairs will be lower. After all, you do not have to wait for the drying of paint materials. And you can use the car immediately after the repair "to its fullest." Because no gentle maintenance is required while the paint is fresh.

The essence of technology

The essence of PDR technology is to straighten damaged parts to their original state, without destroying the paint layer. The technology itself looks quite simple - using a special tool, the deformations simply bend back. But this simplicity is apparent.

With glue

Although a number of so-called "slammers" or dents from the outside to the inside outside the bends and stiffeners can be straightened without even disassembling anything in the car. For this, special clips and caps of various sizes are used, which are glued with specialized glue to the conditional center of the dent.

It is necessary to correctly and accurately determine where to glue the piston. And this is not the geometric center of the dent at all. Here everything depends on the stresses in the metal, and the ability to determine the correct place comes only with experience.

And the very nature of alignment requires no small skill. After all, you can’t just pull the piston and return the original state. It will take a series of actions, gem quality. Otherwise, the elongated metal along the edges of the dent will bulge somewhat, which will not have a positive effect on aesthetics. The metal must be "carried out" along the path of obtaining a dent in the opposite direction. Only in this case there will be no traces left. In this case, the paintwork must not be damaged, because otherwise the repair of dents according to the PDR principle is already useless. Therefore, often, a seemingly simple dent is straightened in several steps. But from the outside it all looks simple and akin to magic.

And upon successful completion, the glued piston must be removed. For this, a special solvent is used, which acts only on the glue, without affecting the paint. The same solvent removes traces of glue.

Thermal recovery

Another option for repairing PDRs for some types of damage is simple heating. Of course, not all types of damage can be eliminated in this way, as a rule, these are ordinary dents with a small degree of deformation.

But the process itself is simple. After the specialist has established the possibility of leveling the dent in this way, the damaged area is simply heated with an industrial hair dryer. The metal, expanding from temperature and increasing its plasticity, itself restores its shape.

However, here, too, knowledge and experience are necessary for success, otherwise, on the contrary, the problem can be aggravated. For example, if you heat an area that is more seriously damaged and is not suitable for thermal recovery, then additional damage to the boundary layer is produced. It's harder to fix this later.

Direct mechanical action

Everything is not so simple here. This method is used when deforming stiffeners or bends of elements. Usually the impact is made from the inside, sometimes even with partial disassembly of the car interior.

It differs from the first technology in the use of many different devices, in the form of hooks and clubs. In this case, it can also be combined with the adhesive method. With a special tool, the dent is squeezed out from the inside in several steps. Repeating the path of the metal when receiving deformation, only in the opposite direction. Because dents can be serious, and when the shape is restored, a trace may remain along the edges, then even “bend” in the opposite direction is used, followed by a return. This method achieves the return of the metal along the edges of the dent to its original state.

Of course, this procedure is already longer and requires a sufficient amount of effort from the master. But it is still faster than classical technology.

Also, in some cases, pulling is used. This is typical when power elements with a complex shape are damaged. It is effective to return them to their original form by stretching.

What tools will be needed?

PDR dent repairs require special tools and a dedicated room.

A tool anyhow, where you can’t buy for a penny. For it, special alloys with high strength are used. After all, it is often necessary to carry out a significant effort with a thin twig that crawls into the technological hole. Yes, and the glue is used branded, which is compatible with paint coatings used in the automotive industry, has high adhesion and can be easily removed using branded materials. That is why such a set costs about 90 tr. Yes, and they are produced only in the USA and Germany.

The room for repair should also be specially equipped. After all, only a special contrasting illumination with parallel lines will help to accurately see the relief of the dent. By their reflections in the dent zone, you can accurately see the relief. In small areas, a portable option is also sufficient, but for repair, for example, a roof, lighting throughout the wall is needed. Moreover, the contrast lines must be strictly parallel and equidistant from the observation point.

In addition, it is unlikely that it will be possible to simply purchase tools and start making repairs with your own hands. It will take quite a long time to comprehend the basics of technology with your own experience, so that at least something starts to work out. Professional training is required. And it is expensive.

How to choose a master

According to the reasons described above, the presence of special tools and a trained master in the technical center does not yet give any guarantee of high-quality work. After all, the experience of a professional plays a significant role here. The process of such repair is complex, requires patience, a lot of knowledge and experience.

Therefore, the main selection criterion is which master will perform the work. Here it is wiser to use the recommendations of friends and acquaintances who have already done repairs with a master. The rest of the arguments are unconvincing.

In what cases is it worth doing such a repair?

The ability to restore the former shape depends on the degree of damage. And both the metal itself and the paintwork. The metal in the damaged area should not have breaks. Also, the fixing points (spot welding or gluing) must not be damaged. If there is damage on the paintwork that cannot be eliminated by polishing, then the point in carrying out repairs according to the PDR principle is lost. The paint must not be damaged.

That is, ordinary dents on the roof or doors, or fenders are not a problem, with the integrity of the paint. Of course, if they are not extensive and not fatal (the metal is whole). Such damage is corrected.

Another thing is if the blow fell on a bend, corner or junction of elements. It all depends on the nature of the damage and is determined by the master individually. In any case, the specialist, before starting the repair, will examine all the damage and issue a verdict - what can be fixed and what cannot.

A serious obstacle is the deformation of the power cell of the car body, made of high-strength metal with increased thickness. In some cases, these elements are not subject to recovery using this technology. In this embodiment, it is already necessary to apply classical repair methods. Therefore, recovery after a serious accident using PDR technology is unlikely.

But most minor damage, in case of small contact accidents, troubles in the parking lot or when objects fall on the roof of the car, are solved without problems. But it is precisely such injuries, according to statistics, the majority. In addition, after such a repair, no traces of it remain. The car seems to have never been damaged, which has a positive effect on the value of the sale.

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