DIY repair of scratches on the bumper without painting

In detail: repair of scratches on the bumper without painting with your own hands from a real master for the site my.housecope.com.

Almost all cars currently produced have plastic bumpers. No matter how thrifty and tidy the driver is, there comes a time when he is interested in the question of how to paint over scratches on a plastic bumper.

Most drivers prefer to go to specialized workshops in such cases. But many types of deformations of plastic products can be removed by yourself. Most often they get damaged and "suffer" from small stones flying out from under the wheels of oncoming cars, collisions on curbs and other obstacles.

The first thing to do is to wash well the damaged area of the plastic using shampoo. Further, after drying, the product being repaired is degreased. White spirit works well for this. After these operations, the following types of defects may appear to your eyes:

The presence of small, sometimes barely noticeable scratches, abrasions. This is one of the simplest cases of damage. To remove such a flaw, you do not need to remove the bumper from the car, you also don’t have to paint it. It is simply polished right on the machine.
The appearance of large scratches, cracks, as a rule, is the result of failed parking lots or collisions. In such cases, painting will already be required to remove the damage.
More serious damage is dents. They can be obtained by impact and heating. In order to remove them, various suction cups are used, and small dents can be removed by heating the damaged areas.
Breaking or breaking is one of the most serious types of damage that can be difficult to repair. In most cases, there is damage to the bumper, its breaks, violation of the integrity. In some cases, it is possible to "cure" the part by welding, soldering or other methods, but most often the owners buy a new product.

Video (click to play).

If you will be polishing the plastic of the bumper from scratches, you cannot do without purchasing special tools and tools. Depending on the type of scratches received, their depth and nature, in order to remove the defect, you may need to use a polishing machine, drill, special nozzles for sanding paper. Wool wheels for applying abrasive compounds, abrasive compounds, as well as a spray gun, polish. If all this is there, and the desire to remove the plastic scratch with your own hands has not disappeared, let's talk about how to polish the scratch on the bumper plastic.

You can perform this operation directly on the car, but it is more convenient to do all this with the removed product. Remove any existing damage before polishing.

Work always begins with degreasing the plastic surface to be repaired. In this case, various solvents are used, but before using them, you should carefully read the instructions. After that, you can start removing the scratches.

They start up a polishing machine, you will also need a hard wheel, abrasive pastes. The product should be applied to damaged areas of the bumper. Spread the paste over the surface with a polishing machine in such a way that in the first period it works at low speeds, and then they are gradually increased.

While working, carefully monitor the area to be treated so as not to miss a small scratch on the bumper somewhere. In addition to being careful while working, you need to be careful.Excessive diligence can damage the plastic paintwork. When the damaged area has been completely processed, it is necessary to remove the abrasive material remaining on the part with a clean rag.

This stage of work is much easier than the previous one, but you will first have to purchase a product that contains wax and Teflon. They are needed to make the plastic of the bumper shine, they will also increase its water-repellent property, improve protection. The work will involve a nozzle made of foam rubber, a polishing machine. If the area is not very large, it is quite possible to polish by hand.

The bumper plastic is carefully polished and monitored. After the shine of the treated surface appears, work can be stopped. How to remove scratches from the plastic of a car bumper was told, but this is far from the only way to repair damage. Wax crayons, or as they are also called wax markers, are also used.

Removing scratches by staining will be more detailed, but also difficult. Very deep scratches, dents can be removed with putties with their further grinding. This method is time consuming. It will be necessary to apply a layer of primer to the repaired plastic surface, followed by painting.

We hope that we have answered the question of how to fix scratches on the plastic of the bumper. If you still have questions, watch the video:

Most owners are in awe of the look of their car. But alas, it is impossible to protect the paintwork of the car from accidental scratches. Most often, plastic bumpers suffer - both rear and front. There are many reasons: unsuccessful parking, pebbles on the roads from oncoming cars, tree branches and other circumstances. The question is: is it necessary to fight them? The answer is simple: any scratch on the plastic is the beginning of the destruction of the paintwork. Failure to take measures will lead to corrosion of metal products, and deep marks from "wounds" over time can destroy plastic parts. So it's best to remove them as soon as they appear.

In general passenger cars, dampers are used, which are made of high-strength plastic.

The main role of this device is the decorative design of the appearance of the car. Most machines use impact-resistant thermoplastic (ABS plastic) as an element of passive protection. But there are dampers made from polypropylene, polyurethane and fiberglass. This can be indicated by the marking that is applied to their inner surface. The plastic is lightweight, easy to stamp, holds the paintwork perfectly. The protective functions of the bumper are of secondary importance. They appear only in collisions at low speed:

as a result of maneuvering in a confined space when parking;
when driving over rough terrain.

In Russia, male car owners are jack of all trades. For them, removing scratches from a plastic bumper is a feasible, somewhat familiar, not very difficult task. Life itself makes such tricks go - not everyone has enough money to go to a car service on every occasion.

But first you need to assess the scale of the damage in order to choose the right strategy for your actions. Having carefully studied the defects of the bumper, you need to attribute them to one of the points of the accepted classification:

Slightly noticeable, shallow abrasions and scratches do not require removing the bumper and painting. They do not cause any harm to the plastic, but they cause frustration to the owner of the car because of the spoiled appearance. This flaw is corrected by polishing this place directly on the car.
Scratches to the depth of the paintwork and small cracks are the result of minor accidents and inept parking.In this case, special restoration methods are used - heating, wax crayon, local or complete staining - of the bumper. Small defects are repaired on site. The damage is more serious - on the removed buffer.
Deep Scratches and Dents are formed by violent collisions. Here you will need to putty damage on the removed bumper. In this case, a special technique is used to restore the original state of the plastic part.
The destruction of the integrity of the damper with the formation of ruptures, breaks, through cracks most often requires the purchase of a new part. In cases where repairs are possible, welding is used. But this work can only be done in a car service, so such defects will not be considered in this article.

The whole process of getting rid of the flaw is divided into two stages:

polishing with the removal of the thinnest layer of paintwork (paintwork) plastic;
restoration of paintwork using wax polishes without the use of abrasives.

The procedure is as follows:

clean, wash and degrease the defective area with a solvent;
polish the scratches with a fine-grained sandpaper with abundant watering until they disappear completely;
treat damaged paintwork with felt, without abrasive wax pastes (in difficult cases, you can use tooth powder);
Wipe dry with a woolen cloth.

When heated, the plastic becomes fluid. This property is used when getting rid of surface damage in the bumper in the form of deep marks from sharp objects. This method can only be used for unpainted products. The high temperature will destroy the paintwork and instead of benefit, harm will result. A large area, including an area with scratches, is gently gradually heated with a construction hairdryer. This process should go slowly, evenly, consistently. The danger here is that the plastic under the influence of high temperature can behave unpredictably: instead of tightening the defective traces, its surface will "float". In this case, such depressions are formed, which will be very difficult to liquidate in the future. Mindfulness, neatness, and slowness will help to stop at a critical moment.

This method can correct only the defect of such marks, the depth of which extends to the layer of varnish, paint and bumper primer. A wax stick is a versatile polymer synthesis tool. They create a strong protective layer that is not inferior to the strength and uniformity of the bumper paintwork. A wax crayon has the following benefits:

its composition is durable, therefore it easily endures several dozen car washes using car shampoos;
it is easy to use, so an inexperienced driver can easily use it;
it will not harm any kind of primer and paint that was used when painting the bumper at the factory.

There are two types of wax crayons:

Marker. Reminds of a regular felt-tip pen. They just need to paint over a scratch or chip. The amount of released substance depends on the force of pressing. The content of the marker is similar in consistency to the composition of the paintwork. A colorless wax crayon can be used for any paint color.

Corrector. Consists of a bottle and a brush. Requires an individual selection of a suitable pencil for a specific color of the bumper paintwork. When using a brush, an intact area may also be caught. In this case, it is necessary that the colors of the paintwork and the corrector coincide by 100%.

For cases of damage only to the paintwork, you can also use a colorless corrective pencil. Colorless paint is poured into it, so there will be no negative consequences from its use. In a situation where the ground layer is damaged, a colorless wax pencil will not be able to help eliminate the defect.

Procedure for using a wax crayon:

the damaged area of the bumper is thoroughly washed, degreased and dried;
a pencil on a scratch should be carried out gradually, evenly, consistently;
deep chips are painted over in several steps;
after finishing work, it is necessary to remove the remnants of the contents of the pencil with a paper towel or napkin.

If the area of the defective section of the bumper is significant, complete painting of the entire product will be required after the flaws have been eliminated. In such cases, the buffer is removed from the vehicle. It is thoroughly cleaned from dirt and washed. The problem area is polished with a small grinder, as well as the use of flexible abrasive wheels: emery skins, belts, petals, brushes. In this way, scratches can be removed, the depth of which is limited by damage to the primer. Then the cleaned area is washed, degreased, primed. Then the entire surface of the bumper is painted, then varnished. After drying, the damper regains its original appearance.

Video: how to remove scratches on the bumper with your own hands?

Serious signs of damage affecting the plastic material can only be repaired with a putty. This technology is based on the use of fillers, primers and enamels of the same polymer base. This approach creates a durable, uniform layer of new paintwork that will not swell, flake or flake. The putty is applied in several steps. Each layer is dried. The quality of the repair of the bumper and the applied paintwork depends on the thoroughness of this operation. The filler is sanded with a soft abrasive material.To the touch, the place where the defects were repaired should be indistinguishable from the adjacent undamaged areas. This process requires skill, perseverance, and diligence. Then the area with eliminated flaws is degreased, primed, painted. The top is varnished. In this way, you can get rid of deep scratches, chips, dents on the bumper both installed on the car and dismantled from it. It all depends on the place of damage and area.

In the process of restoring the integrity and appearance of the bumper, the upcoming work will depend on the type of damage found. This is an important point, since one option is used for scratches and chips, a completely different method is required to remove a dent.

If you need to carry out repairs with your own hands, or the insurance does not work, or there is no money and desire to contact the service center, you will need to carefully study the nature of the damage. If the driver realizes that the bumper is very badly damaged, you should not try to restore the part on your own, but it is better to purchase a new one. If relatively small chips or dents are found, the problem can be completely eliminated on your own, knowing how to act in this or that case.So, how can scratches, dents and cracks be repaired quickly and effectively.

Elimination of this problem can be carried out by using sandpaper. Material No. 50 is taken and grouting is carried out. In this case, it is necessary to carefully eliminate all irregularities, acting until the surface becomes completely correct in shape. In the course of this process, the damage may become slightly larger in size, but their depth will become much smaller. Do not be afraid of this, after thorough cleaning all the irregularities will be filled with putty.

If there is a desire and certain skills, then instead of putty, you can use a special liquid plastic, which fully corresponds to the type of material from which the plastic is made. After applying this composition, after it has completely dried, it will also be necessary to clean the surface and carefully sand it, sanding it to the most even surface.

To repair a minor dent that did not damage the paintwork, you simply need to heat the deformed part of the bumper. The concave part of the plastic must be heated with a previously prepared thermal or technical hair dryer until the material becomes soft enough. After that, the dent is manually straightened, at the same time giving the damaged section of the bumper the correct geometric shape.

If cracks appear on the surface of the bumper, it will be necessary to use a pre-prepared metal mesh and a soldering iron. The sequence of actions in this case will be as follows:

The edges of the damage must be brought together and soldered to one side of the mesh. It is advisable to drown it as deeply as possible in the plastic, but you cannot overdo it, as a hole may form.
The end of the mesh is covered with melted plastic.
Similarly, you need to walk along the entire crack.

If the damage to the bumper is minor, special construction brackets can be used instead of the mesh. In the process of soldering them, it is recommended to use tweezers, which will prevent burns of the brushes. Bonding actions should be spaced 2 cm apart and along the entire length of the crack.

To prevent the mesh and metal staples from rusting after a while, the items must be covered with special liquid plastic. At the end of all the work that is carried out on the inner surface of the bumper, its front side immediately takes on its original appearance.

The question of how to restore and repair a car bumper with your own hands is relevant for all modern motorists without exception. If you follow the instructions and tips provided in the article, you can repair damage to the bumper with minimal money and time.

Most car enthusiasts repair small scratches on a car with their own hands, which saves money and time. The life of car owners is facilitated by the fact that modern paintwork is durable and elastic, and a huge number of effective means are produced for its restoration.

Elimination of minor scratches on the car

All small defects - scratches, chips, scuffs, cobwebs, cracks are subdivided according to the size and depth of damage. It can be superficial or deep - depending on the nature of the damage, a method of eliminating the defect is chosen.

Superficial scuffs and the smallest cracks of the body and bumper abound in every car. Without carrying the threat of corrosion, such damage to the top layer of the paintwork is harmless in itself, but they spoil the appearance of the car, especially the new one. To eliminate them, a cosmetic repair of scratches on the car is done without painting. It is of two types:

masking with special compounds;
removal of scratches on the car body by polishing.

You can fix scratches on the machine by treating the surface with special restorative compounds based on silicone, wax or Teflon. The duration of such drugs is short, the cosmetic effect lasts from 2 to 12 washes.

Removing scratches on a car body without painting can be done with a wax pencil - this is the easiest way to mask surface damage that has not touched the ground. The color of the pencil is selected as close as possible to the shade of the car's coating. The area around the scratch is cleaned, and then the damage is shaded with lateral movements. The wax will fill the depression, the surface will be leveled, the defect will become invisible. According to motorists' reviews, the masking effect of the wax composition persists after 2-3 washes. After processing with a wax pencil, it is recommended to grind the surface with an abrasive polish. Instead of a pencil, you can use a wax-based polish, it is more durable, it can withstand 5-6 washes.

Synthetic pastes are produced on the basis of Teflon, they are more expensive, but they can withstand up to 12 washes. To eliminate a scratch on a car, the paste is rubbed into the surface, having previously cleaned and then degreased the damaged area.

A silicone repair polish is used to remove scratches from the car body. The car is pre-washed with water, the place of damage is dried. Shake the polish, apply the product to a damp cloth, rub it into the surface with smooth movements without effort. After the silicone compound dries, a soft coating forms on the surface of the car - a thin film forms at the molecular level. The remnants of the product are removed from the surface with a dry cloth.

Read also: Nokia 8800 DIY repair

Advice. Before using the composition, read the instructions for its use, without neglecting the details. For example, do not forget to shake vials or other containers before use, as dissimilar chemical constituents of substances settle during storage.

One of the most effective methods of repairing surface damage is to polish the scratch on the car with your own hands. For work you will need:

grinding machine with a circle;
fine (3000) sanding paper;
abrasive paste (one or a set);
regenerating polish;
water with a spray.

The surface of the car is washed, degreased, before work, it is moistened with grinding paper with water.

Using a lint-free napkin, cover the surface of the part with an abrasive paste, begin grinding with smooth movements, in order to polish the scratch on the machine with your own hands, but not remove the excessively thick layer of varnish. Using a grinder speeds up the process, but when working with it, it is important not to overdo it. After sanding and cleaning from the paste, the surface is treated with a polish to give a glossy shine.

Means for removing defects from paintwork

Polishing pastes are produced in several types according to numbers from 1 to 4 - from coarse-fraction (No. 1) to fine-fraction (No. 4). Polishing can be carried out sequentially with all pastes from the first to the fourth number, changing the polishing wheel of the grinder or reducing the grain fraction of the sandpaper. Polishing wheels differ in hardness, the degree of which is indicated by color: the coarsest - white, medium - orange, soft (for finishing) - black.

Removing small scratches on the car will allow you to renew the look of the car with the least cost and effort.

A penetrating scratch on the machine to the metal carries the risk of corrosion and must be repaired without delay. The principle of eliminating damage is to remove rust and fill it with special paint-cementing compounds. Removing deep scratches on a car without painting is carried out as follows:

The surface of the car is washed, degreased, dried.
If the damage has corroded, oxidized metal particles are removed: the depression is treated with a rust converter. If the scratch is fresh, fill it with primer for better paint adhesion.

Deep damage all over the side of the machine

After the treated surface has completely dried, the scratches of the car are painted - paint is applied inside the recess, specially designed for local repair (for example, Touch-Up, produced in the form of a pencil). Some car owners, to remove a scratch from the car body, use special kits from the car manufacturer, consisting of paint and varnish, ideally suited to the car's paintwork.
When the paint and then the varnish are dry, the place is treated with abrasive polishes - coarse and fine abrasive. If possible, the surface is sequentially polished with both compounds, but one can be dispensed with.
The final step in removing a scratch on a car is rubbing it with a repair polish to add a shine to the surface.

Removing chips on a car without painting is carried out in the same way.

The bumper is designed to protect the car from impacts, it is the most vulnerable part that takes impacts. Occupying a central place, it is also designed to decorate the car. Repairing and removing scratches on the car in the bumper area will significantly improve the appearance of the car. The technology for removing scratches on the bumper without painting and the choice of a suitable composition depends on the plastic material from which it is made: thermoplastic, thermosetting plastic or polypropylene.

Elimination of scratches on the bumper

If many cracks and cobwebs of the paintwork have a superficial character, and they are not pronounced, then to eliminate damage to the paintwork, the bumper is polished from scratches. Craftsmen recommend removing the part from the machine for ease of use and better results.

The clean, grease-free surface of the bumper is polished "on wet" - after being moistened with water. First, a coarse-abrasive paste is applied, sanded with 2000 sandpaper, gradually increasing the speed of the grinder. At the end, wipe the surface with a dry cloth. The next step is sanding with fine paste and 3000 sandpaper. Finally, the bumper is treated with a finishing paste or polish. The difference in polishing plastic and metal is that working on plastic requires less speed of the grinder.

The next way to remove a scratch on plastic, which is superficial, is to use chemicals:

First, the surface is washed and degreased with white spirit or other solvent. Then the selected agent is applied, if it is liquid enamel, then shake the bottle before use. After waiting for the composition to "grab", remove the excess with a dry, lint-free cloth.

If the damage is penetrating, then the elimination of scratches on the plastic of the car will require local filling and painting. The surface is sequentially sanded with sandpaper P150 and P240, cleaned and primed for better adhesion of the putty. Putty on the plastic is applied to the ground, after drying it is processed with sandpaper P110, P240, P320, scotch-bright. If it is necessary to level the surface, the putty can be applied in several layers, waiting for the previous one to dry. The putty is covered with primer, painted, varnish is applied to the dried paint.

The peculiarity of painting plastic parts is the obligatory application of a primer under the paint and varnish layer.

None of the drivers are immune from the appearance of various scratches and dents on the bumper. Many people start to worry about the question of when a scratch appears on the plastic of the bumper, how to remove it and whether it can be done at home, since a scratched bumper not only spoils the driver's image, but also the general appearance of the car. It is about how to do this without leaving your home, which will be discussed below.

Today we will tell you how to eliminate cosmetic defects of plastic surfaces.

In order to figure out how to remove scratches on the bumper with your own hands, you need to have an idea of what they are.

Specialists in the field of car repairs distinguish the following types:

superficial, which are formed on the top layer of the paintwork, it can be abrasion or a slight discoloration in this area;
medium depth, which not only destroys the paintwork, but also slightly touches the plastic from which the bumper is made;

With such damage, not only paintwork suffers, but also plastic

deep, which form dents and small cracks in a certain area of the car bumper.

Based on this, repairs will take place.

When a motorist, during the next superficial examination of his car, discovers some abrasions on this element of his car, he has a reasonable question, if he has already scratched the bumper, what to do? Although the scratch is small, it can be very conspicuous. The easiest way out is to go to your nearest car store and purchase a special wax crayon.

It is inexpensive, but it will be of great benefit if the driver carries it with him. The process of getting rid of such a scratch will be as follows:

To close it up completely and without visible signs that any work was being done, it is better to completely remove the bumper and put it on a hill.

After that, it is good to clean the damaged area, removing the remnants of dirt and other layers. To do this, it is best to take either a special substance for processing plastic, or use gasoline or white spirit. But since they can damage the paintwork of the car, you should take some precautions: just drop it a little on it on a flannel or chintz cloth, very carefully, without applying significant effort, wipe the damaged area in a circular motion, and then be sure to remove all residues with a dry cloth. If you wait until everything dries on its own, then traces may remain. White spirit and gasoline by themselves do not interact with paint if used with great care.

After everything is clean, you can start removing the scratches. To do this, the cap is removed from the wax pencil, the wax is slightly squeezed out and the damaged area is covered with transverse movements. Thus, the first layer is superimposed. After it dries slightly, you need to apply a second layer, but with a vertical movement.

Apply a thin layer of wax to the damaged area.

Next, you can leave the bumper in a warm place and wait a few hours until everything is dry. Next, a polish is taken, a dry rag and everything is polished to a shine. After the completion of the work, it will not even be noticeable that any work was carried out on this unit of the car.

Now we will talk about how to repair scratches on the bumper of a car that have a medium penetration depth and have damaged the paintwork.

What to do in this case? Such repairs will take place according to the following algorithm:

The process of work begins with the fact that the bumper is removed from the car and placed on a hill or stand, while it is completely cleaned of dirt, and in the case of peeling paint and varnish coatings of individual areas - and from them.

The part will have to be painted entirely, therefore it is advisable to remove it

At the same time, it is immediately necessary to make a reservation that the filling of such cracks will take place with the help of a complete painting of the bumper, since it will be difficult to pick up paint for a small surface, therefore the next stage is processing the bumper with a grinding wheel and sandpaper.

This process begins with general sanding over the entire area, while it is better to use an emery wheel marked 2000, and in hard-to-reach places - paper sandpaper (two).

Further, everything is wiped off with a dry cloth and degreased, a special tool for processing plastic surfaces, gasoline or white spirit will help. Just keep in mind that you need to use them very carefully, you should not rub in one place for too long;

Then the entire bumper is covered with two coats of primer and the part is left to dry completely indoors.

When everything is dry, the primer is pre-cleaned and you can start painting.

The paint is loaded into a spray bottle and evenly applied to the part, while it is better to do this in three layers.

After that, a polish is taken and a thorough polishing takes place with a dry cloth.

How to remove scratches on the bumper with your own hands if they have created dents or damaged not only the paint, but also the plastic.

For those who scratched the bumper in this way, there is the following repair algorithm:

Work begins with the fact that the damaged part is removed and thoroughly cleaned of dirt.
Further, the entire area is processed with a grinding wheel, and hard-to-reach places - with sandpaper (two), everything is wiped off with a dry cloth and degreased.
Then a special fiberglass tape must be glued to the surface of the bumper.
The next step is to mix a special automotive putty and thickener. After you have achieved a homogeneous mass, the mixture is evenly applied to the already glued tape in one layer with a special device and sanded; for this purpose, it is better to use a grinding wheel at low speeds.
Everything is wiped off with a dry cloth and a new layer is applied, which is cleaned in the same way as the first, after drying.
Further, the damaged surface must be primed. In this case, the soil is also applied in two layers, first the first, it dries up, and then the second.
The primed surface should be lightly sanded with sandpaper and wiped with a dry cloth.
After that, the entire bumper begins to paint with the selected paint from the spray bottle. This process is no different from the one described above for repairing medium cracks.

Spray paint evenly with a spray bottle

The final touch is to polish the surface, but before that, the bumper should dry well in a warm place without draft and wind.

Video (click to play).

If a car enthusiast has scratched the bumper, how to remove the scratches is described above. There is nothing difficult in this, you just need to adhere to certain instructions and do it slowly.