In detail: DIY body repair from A to Z from a real master for the site my.housecope.com.
The body of a modern car is a complex structure that performs many important functions. Its renovation is the other side of the coin of importance and functionality. It is complex and time consuming.
Conditionally body repair can be divided into two stages. The first is the restoration of the body geometry, the elimination of dents, the replacement of irreparable elements. The second is body painting.
Particular attention should be paid to restoring the geometry and rigidity of the hidden underbody. It is these elements that are responsible for the safety and driving characteristics of the vehicle. All suspension elements are attached to it.
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It is difficult to connect body elements by electronic welding, but real. Moreover, the quality of such a connection is very low.
If the metal is not allowed to cool during welding, then the body may move, which will have to be additionally putty. Moreover, such defects cannot always be corrected with putty.
The first step is to replace the doors, then the fenders and sills are exposed. This is the only way to avoid the formation of gaps.
This often happens if one body part is painted without a smooth transition to another. Even if the paint is matched exactly to the original, the old paint on the body has a change in hue, which is associated with fading in the sun and other environmental factors.
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They appear with poor-quality car putty and its insufficient drying. Usually they appear after repairs, when the car is in the sun. Usually it is necessary to re-polish the putty after that.
This is the relief of the applied paint. After painting, there is usually shagreen on the body, but it is removed by polishing. But there is one that cannot be removed by polishing. Usually the defect occurs when the paint is not applied correctly, at high temperatures in the chamber, or viscous paint.
Usually occurs if the car is not painted in a special chamber. But when painting in a dirty chamber, it also has a place to be.
Deepenings from the penetration of silicone, which had to be cut off with a special knife.
Appears if you work with a grinder at high speed or grind the same place for too long, not allowing the varnish to cool.
If the welds are poorly cleaned and primed, then rust can appear in these places, which manifests itself through the paintwork.
By doing car body repair in particular, welding work, then for welding work you need to use a semiautomatic device or argon welding. With the help of such welding, metal up to 1 mm thick is cooked and the possibility of burning through the body elements is excluded.
Body damage can be light, medium, or severe. Straightening usually does not require special skills and, using professional tools and materials, everyone will be able to do it. Only certain difficulties and the need for skills can arise during straightening work after medium to complex damage to the body.
You need to paint the car with fresh paint. The primer will help you identify irregularities and putty them with a finishing filler. It is possible to paint only after the putty and primer are completely dry.
Use a special spray gun for painting. The paint should dry in the special conditions of the camera without direct sunlight. Polishing is permissible only after the paintwork is completely dry.
The body is the main element of the car, ensuring its proper operation. This component has a complex structure and is subject to high loads from time to time. Therefore, problems arise that require intervention. Body repair allows you to restore damage and return the car to working condition.
The reasons for the repair are two factors:
The most common manifestation of the first factor is wear and tear. Most of the damage to the body is a natural process. This component has an operational period, after which the strength values decrease and it becomes vulnerable. The most common cause of wear is corrosion.
Sometimes the cause of problems with the body is non-observance of the rules for storing a car, or improper use. These actions are related to the human factor. Also included in this category:
- constructive flaws made by the manufacturer;
- malfunctions of defects arising from the assembly of the machine;
- damage resulting from poor quality repairs.
The human factor includes road accidents. More than 50% of accidents involve damage to the car body.
General body faults:
- operational;
- constructive;
- technological.
Body damage includes damage to the original condition of an element, from minor scratches to large dents or creases.
The organization of the technological process of work on car restoration begins with diagnostics.
Diagnostics determines the presence of all faults, their features and nature. This makes it easier to choose a way to repair the body. Diagnostics is performed in three stages:
- The paintwork of the machine is inspected for defects.
- An assessment of the geometry of the body is given - if there are irregularities, an inspection without special equipment is sufficient.
- A quality examination is carried out to determine the condition of the welded seams and fasteners. This task requires attention and experience, since the main load is distributed among these elements.
After troubleshooting, a repair plan is drawn up.
Body repair is a set of technological actions aimed at restoring the body. The basis of this process involves the elimination of damage of any nature.
There are two types of body repair:
- full - used when repairing large damage. Most often it is used when restoring a car after an accident;
- local - used when detecting scratches, chips and other minor damages.
Car body repair technology depends on the level of malfunctions. At a high level using full recovery, special equipment is required.
This type of body restoration can be done at home. Local repair does not require laborious actions, and is used to repair minor damage. Body repair includes restoration of:
- scratches and chips;
- small dents;
- early stage of metal rust.
External body repairs are performed using:
External repair cannot eliminate the dimensional damage to the elements. Additional tools for airbrushing and glass cloth processing may be required.
In most cases, the restoration of the body by an overhaul method cannot be performed independently. Its implementation requires professional equipment and special skills. This type of restoration work involves the dismantling of the car. Its purpose is to detect all defects and minor damage. During the restoration, even minor elements are removed.
To detect hidden defects, contact welding zones are drilled out.
Welding works are carried out upon detection:
- corrosion of parts;
- cracks in the body structure;
- deep deformation of parts.
Overhaul is not complete without replacing damaged structural elements.
The main tool used to restore the car body is the slipway. This tool is constructed with high strength values sufficient for power work. The main alignment action is to drag. It involves the use of a system of fasteners acting on points of the structure, under pressure on which the body part takes on its original shape. This task involves a high level of complexity, which is difficult to cope with in the absence of experience.
The slipway provides the measurements required for accurate repair work. Geometry alignment is carried out in stages:
- Secure the vehicle on the slipway platform.
- After calculating the points on the machines, the rig is attached to them.
- Start slipway installation.
After starting, the slipway and rigging automatically pulls the damage into the desired shape. The equipment assumes the use of a computer program that calculates the required level of effort and an indicator for measuring the rack.
The advantage of the slipway installation is that it does not violate the quality of the metal in the fault zones during their elimination.
Do-it-yourself car body repair of car dents is carried out in three ways:
- With glue. Straightening or editing is done using the Pops-a-Dent kit. It includes a heat gun, silicone glue, special rods. After applying the glue and fixing the rods, you must wait until it hardens. Then carefully pull out the dents along with the rods.
- Using a vacuum. The main special tool is a vacuum suction cup. It attaches to the surface of the dent, creating a vacuum. The dent can then be pulled out without risk of damaging the coating surface. Using vacuum pads is a paint-free way to remove dents.
- PDR technology. With the help of special levers, which are inserted through the technological holes of the car, it is possible to reach large dents and remove them by extrusion.
The last method is not recommended for doing it yourself. PDR technology is used by those who have good skills in using professional equipment.
If standard local body repair fails, patches are used. They are used to seal holes in the car body. The patch allows you to repair through rust, if the hole diameter does not exceed 8-10 centimeters. Otherwise, the part is completely replaced.
Before attaching the patch, the edges of the hole are processed. The patch itself must have a diameter exceeding the size of the damage (welded overlapping). For its manufacture, thin metal is used. For fastening, a continuous seam is used. It is recommended to use semi-automatic welding machines.
Scratches and chips are removed with minor body repairs. It involves the use of paint and polish. Additionally, you can apply a primer. The surface is sanded, then a protective coating is applied. New technologies provide sanding, after which the abrasion will not be visible. Cosmetic repairs are easy to do at home.
The paint must match the color of the body finish. Otherwise, the surface of the machine will look unpresentable.
For painting in accordance with the technology of car repair, you need to use only substances designed to cover the surface of the car. In some cases, several stages of coloring are required. After body repair and painting, the surface is thoroughly washed.
The painted machine is polished. Sanding is carried out with soft abrasives only after the paint has completely dried.
Carrying out body repairs yourself, and even in a garage, is quite a difficult task, however, like any other do-it-yourself car repair work, especially for a novice auto repairman.
In this section, you will learn little tricks, devices and techniques for restoring the body from damage received in an accident or simply as a result of corrosion.
If you are a fan of your business and do not miss the opportunity to learn something new, then this section will help you decide on the choice of the correct body part, its installation, and of course the basic techniques for welding with a semiautomatic device. And of course, interesting tips and important recommendations from the body repair specialists.
Read about equipment for repair work in the garage in the articles of the section - “Equipment and tools for the garage”.
Rusted threads and, as a result, a torn off the head of a bolt or a nut with a piece of bolt, is this not a nightmare of a repairer? Who has not encountered this?
There are several ways to unscrew such a bolt without a head, of course, it happens that not all of them are suitable for one reason or another. Let's take a look at one of these methods.
If the carbon dioxide supply valve on your old semiautomatic welding machine is floundering and you already need to somehow solve this painful issue, then this video tutorial will help you.
The best, however, like the simplest way of repair, is to replace a broken valve, but for what?
We read on.
How to slightly modify a transformer semi-automatic welding machine, how to set it up for work, what consumables to buy for body repair and the best way to clean the metal, I will tell you in this video.
Using the example of replacing the threshold in this article, you will learn how you can quickly and easily drill out factory spot welding. And what is important, you will find out what tools and devices are needed for such work.
How to handle carbon dioxide, what to look for when buying hoses, a reducer for a cylinder.
And also, what should be taken into account when changing a cylinder at a gas station and what pressure should be set on the reducer when welding on the body.
It's no secret that the welding process is at the heart of body repair. At first glance - nothing complicated, but everywhere there are little subtleties and tricks.
In this article, you will find a video on welding with tips on how you can weld two pieces of metal with a pair of electrodes and arc welding.
In this video, you will get acquainted with an interesting and very useful tool called the edge bending machine.
The use of an edge breaker in conjunction with a hole punch allows excellent results when welding two thin sheets of body iron together.
What needs to be done so that the iron is on the same level, steps do not form, which then have to be masked with a thick layer of putty? In this video, see a simple and very reliable way to connect using a "backing".
In this first video for beginners, you will learn about the simplest and most basic techniques used in metal welding.
What you need to perform welding operations in car body repair, and you will also learn about several types of metal joining together.
Surface preparation of the body plays a very important role in its further painting, since no paint system can give good results on poorly prepared surfaces.
Preparatory work consists in cleaning the body surface, removing attachments, removing old paintwork (if necessary) and rust, as well as degreasing.
When preparing for painting car parts, we often encounter fairly strong foci of corrosion. I am asked many times, both on the forum and in personal letters, how to deal with severe corrosion, which has already significantly eaten metal, sometimes even through and through.Indeed, during body repair, such places are found on the elements of the car as the bottom of the doors, wheel arches and others that are inherent only to a certain brand, and this is not uncommon, especially if the car has already traveled a lot in our damp climate.
According to statistics, about 30 percent of vehicles have visible damage to the body, while the paintwork of the car is not damaged. This can be as all sorts of small dents, and quite serious damage to the body.
In this case, instead of a full-fledged body repair, PDR technology comes to the rescue - repair of dents without painting. We read the details.
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The main blow to all kinds of aggressive environmental influences is taken by the car body. Thus, its restoration is practically a defining task in extending the life of a vehicle. A problem that has not been eliminated in due time will cause a decrease in the effectiveness of the main mechanisms that ensure movement.
Putting the body in order, and with it the paintwork, is the most difficult task, combined with significant costs. But this is only if all the work will be carried out by third-party specialists. By doing DIY car body repair , the cost savings are greatly enhanced.
- Formation of rust as a result of natural processes;
- Violation of the integrity of the body as a result of a road accident;
- Poor quality of the road surface;
- The occurrence of damage as a result of stones flying out from under the wheels;
- Structural disruption due to low vehicle ownership;
- Natural factors - eg hail.
- Full. Restoration of the entire car body. This method is relevant in the case of large-scale destruction caused by the strongest impact, for example, a severe accident. Its price is naturally higher due to high costs;
- Local. Elimination of local damage. It is used to repair minor damage caused by hail or tree branches. It is worth noting that minor damage can cause large damage, therefore, it is impossible to delay the repair.
DIY car body repair a rather lengthy and complex process. Despite this, information about self-employment is becoming more popular. Why is this happening?
- Improving your own knowledge, therefore, increasing self-esteem;
- In most cases, motorists are not satisfied with the quality of the work performed in the car service. This includes both the speed of execution and the price;
- The modern automotive business industry is quite widespread, which allows you to purchase all the necessary elements of car systems and tools.
- But besides a great desire, you need to have at least basic knowledge and a little experience. It is advisable to master the skills of a welder, painter and other manual labor specialties. Also, for resuscitation work, you will need a spacious garage, where there is lighting and heating.
Do-it-yourself car body repair and hWhat will be required to carry out a full-fledged activity?
In order not to be distracted during work by searching for the necessary parts or tools, the following sets should be purchased in advance:
- Hydraulic set for straightening damaged areas of the car body;
- Platform slipway. With the help of this equipment, it becomes possible to restore the frame and body geometry. Thus, the presented equipment makes it possible to bring the shape of the body up to standard indicators by means of multidirectional efforts;
- To remove dents, you need a quick extraction system;
- Reverse, straightening and gentle hammers are required as additional tools;
- Welding machine. By welding, patches are created, cracks are removed and metal elements are connected. A better quality apparatus is able to create less thick seams, while without loss in strength;
- A device that allows you to eliminate defective areas of plastic parts. A good example is the bumper, which will cost a lot to replace compared to repairs. In addition, one of the most common problems with a bumper is cracks, which can be easily repaired with this device;
- Set for straightening the damaged area. The principle of operation is to glue the device to a concave surface.Further, with the help of a lever, the process itself is carried out.
- After the necessary manipulations, the device is peeled off using a specialized hair dryer.
The car should be painted only with the prescribed car paints. Their functionality is much higher than that of conventional paints, they are less susceptible to the destructive effects of acids, alkalis and other strong substances. It also provides protection against rust, keeping the original appearance for a long time.
- Thorough washing of the body surface. Thus, the possibility of a more detailed inspection for damage and determination of the scale of work is provided;
- Next, the surface must be treated with a degreasing agent;
- Dismantle small elements of the car;
- Carry out cleaning of the body, removing rust, using a grinder or sandpaper. For better removal of traces of corrosion, special nozzles are used that do not damage the metal. The method using chemicals in body stripping has low popularity.
In the case of perforating corrosion, metal recovery is possible. If the hole is not very large, then it can be closed with a metal patch. You will need a piece of metal slightly larger than the diameter of the hole. Using a rust converter, this piece must be soldered.
Next, it is necessary to irradiate the outer side of the patch along the perimeter. The connecting weld must be continuous. Having achieved the desired result, you may face a new problem. The soldered piece may protrude above the base surface. To neutralize it, you must use a hammer.
After this, a small fossa is formed. It is easiest to remove with a regular putty. Before applying the putty, the metal area is cleaned, slightly going beyond the patch. Then degrease the surface. To prolong the life of the metal structure, a primer is applied before the paint is applied. This will allow you to avoid premature destructive processes in the form of corrosion, you can read about the measures of protection and prevention here.
- Acidic. This type of primer is quite liquid, therefore, drying is carried out in a very short time period. It should be applied in a thin layer. After waiting a quarter of an hour, the next layer is applied;
- Acrylic. This type of primer is distributed as an aerosol. Its application is carried out in stages, in two layers. After applying the first layer, you must wait 10 minutes for the composition to dry. Then the second is applied.
It takes about 3 hours for the final result to dry completely. After that, you can putty the surface. To obtain the final result, you must use a fine grain sandpaper.
Having done all the manipulations, the question of excess metal remains unresolved. Experienced businessmen solve this issue very simply. For this they need a special apparatus. The area of the metal that has been stretched is heated and cooled. As a result, the bubbles disappear. In general, the event is not particularly difficult, but it requires equipment that is quite expensive.
Sometimes damage is not accompanied by the destruction of the paint layer. Small dents appear as a result of hail, icicles and other factors of influence. In this case, a new coat of paint is not required. This technique is quite common because it has been around for a long time.
By means of special mechanisms, a concentric effect is carried out on the damaged area, from the reverse side. But even if there is no way to manipulate from the inside, the work can be done from the outside. To do this, a lever is glued to the dent. The metal is straightened. Further, the lever is peeled off without causing damage to the paintwork.The technology is distinguished by a high speed of work, while the financial costs are quite low.
The first impression of a car is most often made by how the body looks. However, this significant part of the car contains not only aesthetic properties, but also it is responsible for the safety of the driver and passengers. In many vehicles, the body is the structural element of the structure.
After unwanted external deformations occur with the car, it has to be restored. Some drivers immediately dial the phone number of the service department, although in many cases it is possible to do body repairs with your own hands, without the involvement of outside help.
You need to start independent work only after a competent assessment of the damage to the car and the resources necessary to fix it. Each case is individual, but many situations can be typified by performing repairs according to already established schemes.
You need to know that do-it-yourself body repair and car painting are quite costly operations, so you can purchase consumables as needed.
Significant damage to the body
The cost of restoring a car with a long-term production date is not always financially justified. In some cases, such repairs reach 30-50% of the cost of the car itself. For a preliminary assessment of the damage, you can contact the specialists.
If the damage is minor, then it is enough to repair the problem area of the body to put it in order. Most often, these problems are:
- small dents;
- scratches or chips of paintwork;
- small areas of damage by corrosive processes.
To eliminate minor scratches or chipped paint, modern special pencils or car polishes are used. Such do-it-yourself body repair fixtures are easy to find in any auto shop. High qualifications are not required to use them. It is enough to carefully use them according to the instructions for use.
Local repair works
You need to know that working with car pencils or polishes does not take much time, but they can restore the car's appearance.
The time of working with such tools depends on the depth of the defect. In some cases, it will be necessary to use means to restore the geometry of body parts without painting.
For deep and significant in diameter dents with damage to the paintwork, you need to use a rubberized mallet and an auxiliary substrate. This will require access from the inside.
You need to know that the force of impacts should not be excessive, so as not to lead to additional thinning of the metal and the impossibility of restoring the factory shape of the processed element.
Chipped dents are subjected to the same treatment, but after straightening, the surface is cleaned from the side of the damaged paint. Further, puttying, grounding and painting works are carried out.
Self-repair of body defects
To repair small dents, a method with a significant temperature difference can be used. During operation, the damaged area is heated with a burner and then rapidly cooled. This stress promotes the return of the metal to its original position.
The resulting corrosive zones must be treated with special protective agents. If the process has gone into deeper layers of metal and occupies a large area, then such a do-it-yourself body repair requires only welding.
During major road accidents, the vehicle may become inoperative. In this case, the most common situations are:
- significant damage to the subframe;
- significant deformation of the load-bearing body parts;
- clear and deep violation of geometry.
It is difficult to reproduce such resuscitation at home, because many safety parameters laid down by the automaker will be lost during the restoration work. The vehicle will behave less predictably during operation or the next traffic incident.
High-quality restoration of the car body, taking into account all geometric and power parameters, is possible only with professional computer support.
If such work is carried out independently, then it will be necessary to operate the car with a significant decrease in the speed limit, providing the driver and passengers with additional safety.
Poor-quality restoration work may result in the following consequences:
- the visual perception of the car significantly deteriorates;
- an illiterate straightening can lead to deviations in the operation of the chassis of the car, leading to significant tire wear.
It is most effective to use self-restoration in areas that do not affect the basic performance of the vehicle.
If the body of your car has through holes formed by metal corrosion, and you do not want to pay 4000-5000 rubles or more for the repair of 1 part, you can try to repair it yourself.
It is not difficult to do this on your own, and the stages of repairing the parts are described in order with a photo review:
1) Take newspapers, and using masking tape, and cover the part of the part that is not planned to be repaired. This is done in order to protect the car body from rusting during stripping.
2) Using a metal brush, abrasive paper (grain 120), remove rust on the parts, and also clean the paint in the area adjacent to the through hole by 1.5-2 cm.
3) Prepare a piece of sheet metal, and cut with metal scissors to size. If you manage to pick up a piece of metal with a corrugated surface on one side, this will be a big plus.
4) Secure the cut-out piece of metal to the inside of the piece. There are several ways to do this:
- If there is access to the inside of the part, it can be welded using spot welding.
- If there is no access, you can use foam and special glue. To do this, by singing a hole inside the part and applying a suitable glue to the embedded piece of metal.
(The last way is not entirely correctsince polyurethane foam can corrode a part from the inside, and it is somehow wrong to glue a piece of metal onto glue, so we use this option in exceptional cases, if the car is not a pity).
5) Prepare automotive putty with hardener and dilute according to the manufacturer's recommendations. After dilution with hardener, the putty is suitable for work within 2-3 minutes.
6) Apply the first layer of putty to the area to be repaired. Let the putty dry.
7) Dilute the filler with hardener again and apply a second layer of filler to the area to be repaired. Let the putty dry.
8) Dilute the filler with hardener again and apply a final layer of filler to the area to be repaired. When applying a finishing layer. try not to leave streaks or streaks.
9) Using sanding paper (grit 800 or 100) soaked in water - sand the area to be repaired. If defects are found on the filler: scratches, dimples, etc., apply a layer of filler again, on the part to be repaired and, after drying, repeat sanding.
10) Again we take newspapers and masking tape, and we protect the part of the car that is not being repaired. Apply a primer.
11) After the primer has dried, proceed to paint. The paint is applied in 2 layers with drying between stages in 30 minutes.
12) After painting, remove masking tape and newspapers from the part being repaired.
Many of us would like to engage in body repair, but we do not dare for reasons: “it’s difficult”, “it is expensive”, “screw it up”, “I don’t know how to do it right”, etc.However, getting the first knowledge is very easy and not expensive at all. Let's figure out how to restore a car body part, prepare it for repainting and paint it.
Small scratches that are only on the surface of the paintwork can be removed by polishing. And if the scratches are deep (to the ground or metal), then painting of the damaged site is already necessary.
Hello everyone! My name is Mikhail, now I'll tell you a story about how I managed to exchange a dvenashka for a 2010 Camry. It all started with the fact that I was wildly annoyed by the breakdowns of the two, like nothing serious broke down, but the little things, damn it, so many things that really started to enrage. Here the idea was born that it was time to change the car to a foreign car. The choice fell on the tayet Camry of the tenths.
Painting can be of two types: partial painting of the car (local, when the part is painted with a transition) and full (the whole part is painted).
Local car painting it is necessary in those cases when it is necessary to restore only a certain part of the body. The advantage of such painting is that the body parts are not dismantled, and therefore the body factory assembly of the car is not disturbed.
Painting the entire part as a whole done only when necessary if the scratches or dents are deep and take up a large area on the car body parts.
All car enthusiasts who want to try paint the car with your own hands the first thing to think about is spray paint. And then the question arises:
Answer: Of course you can paint, but you cannot paint with high quality. Why ?
Firstly, the spray can has an uneven spray, so it becomes very difficult to paint a car with high quality. In addition, the ink jet is too strong, so it is easy to get ink smudges as a result.
It is important to remember that painting a car must take place in a special room that meets a number of requirements (no dust and wind, suitable temperature and humidity). It is not allowed to paint the car on the street.
If one of the rules is not followed, the paint may turn out to be spots, there will be shagreen (the surface of the paint is not smooth, but like an orange peel), smudges, etc.
Thus, if we are talking about painting from a spray can, then there is no need to talk about aesthetics.
But if you are still in the mood for such work, then try to apply thin layers of paint (at a greater distance from the part) and do at least 3 layers. Spray paint video can be found in this article. Spray paint is best used to partially paint the bumper, but forget about full spray painting of the car.
Now, let's analyze how to paint a car with high quality at home:
To apply a high-quality primer on the working surface, we already need a compressor (with a pressure gauge and adjustment), a spray gun (not necessarily expensive) and a respirator. We cover the whole machine with paper or foil. If the primer gets on the paint and has time to dry, then consider that it remains there forever. We degrease the surface well and apply in a couple of layers.
We remove the paper and proceed to the processing of the soil (800 sandpaper on wet). As soon as the ground is perfectly smooth and even with the body to the touch, the preparation process for painting can be considered complete.
Remember that a correctly and carefully prepared part is the key to a good car painting!
High quality paint the car is possible only if it works choose the right color... The paint should match perfectly with the previous coating. It is best to contact a professional colorist who will not only correctly select the color, but also provide you with high-quality paint.
Before painting, you need to decide exactly which part of the body we will cover with varnish. We glue the rest. It is imperative to remove all gloss from the wing (mat). This is done with 800-1000 sandpaper on a wet or a special scotch-bright sponge (reminiscent of a rough sponge for washing dishes). We degrease and, if desired, wipe with a sticky napkin to remove small specks.
Painting a car at home involves working in a dusty garage. Therefore, it is recommended to nail down the dust with a water spray before painting.
Car painting technology always involves the application of several layers of paint. When using light-colored paints, it may be necessary to apply a preliminary coat of paint to paint over the primer.
So, first coat of paint spreads out onto the ground, overlapping it and the wing itself a little.
Second layer apply in a minute and in another minute third, basic. Air pressure during painting should be about 4 atm. Lack or excess of pressure during painting will not lead to anything good.
After the third layer we get a matte painted wing:
At room temperature, the paint dries for about 15 minutes. If, after drying, irregularities come out (as after a primer), then the part was poorly prepared for painting. You cannot touch the painted surface with your hands, otherwise you will have to degrease again, and the solvent will simply wipe off the paint.
Further detail you need varnish... It is recommended to once again gently walk with a sticky napkin, because the varnish is very sensitive even to tiny grains of sand. It is better to dilute the varnish even before applying the paint, since it needs to be infused for at least 20-30 minutes for air bubbles to come out.
You can varnish at will, either while the paint is not completely dry, or wait for final drying.
First coat of varnish (base) should be very thin and applied to the entire surface of the part.
Second coat of varnish (main) we apply after 2 minutes exposure, also evenly over the entire working surface. It is not worth pouring a lot of varnish, otherwise it will flow.
If dust got under the varnish, then polishing will help to correct the situation, but only after a week, when the varnish is completely dry!
Car painting cost, and in particular the wing that was discussed in the photo report, is:
Emery - 100 rubles;
- Solvent 646 - 120 rubles;
- Putty - 50 rubles;
- Primer - 70 rubles;
- Paint - 300 rubles;
- Varnish - 200 rubles;
Total 900 rubles.
The main problem with silver shades is the so-called apple-like effect, where the paint is blotting. This happens if the paint is applied unevenly and when one layer of paint is overlapped with another, the shade changes and as a result, either stripes or spots of a different shade appear. To prevent this from happening, when applying the last layer of paint, the painter increases the air flow in the spray gun and applies the last layer of paint using the spray method, observing that the paint layer is sprayed onto the surface evenly.
After the paint dries, the ground begins to show through or the applied layers of paint (base) look like a zebra, for example, the silver color in places looks like black. The reason is an insufficiently painted surface.
If the painted part becomes dull after drying, then the reason is high humidity.
Varnish smudges can occur due to too thin varnish, too much varnish or insufficient intermediate drying between varnish coats.
How many illustrations do not publish, and the video material has always been more visual and understandable.
Video of painting a car in a garage:
Video painting a car by a professional:
Do not be afraid and do not panic, believe in yourself, because this is just a piece of iron! By the way, there are other ways to deal with rust.
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