Polishing glass with goyi paste: do-it-yourself windshield processing

Published: 03/11/2016

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Tags:Abrasive polishingCar glass Polishing paste

Most glass, as well as the car body, acquire a coating over time, which is why they become cloudy. This significantly reduces visibility on the road and also negatively affects the appearance of the car. In this case, it is logical to periodically carry out polishing in a car service center or with your own hands. At this stage, every driver asks the question: how to polish the surface?

Today there are all kinds of gels, pastes, and aerosols available. Commonly used types of polishing agents include:

wax;
abrasive;
polymer.

The result of polishing car glass

Each of the means has its own characteristics. Wax and polymer rub the car until it shines, creating a film on it that protects it from external influences. Abrasive ones do an excellent job of removing scratches and small cracks.

A universal product used for polishing the surface of cars is GOI paste. It is used for do-it-yourself processing of metals (in particular precious ones), plastics, glass and mirrors. The product is sold in the form of a solid green bar. The basis of GOI is chromium oxide.

Pasta was invented in the 30s of the last century. Today, you can find green sticks of paste at the car market or in a specialized store either in 30-gram jars or in 1-kilogram pieces.

Packaging of GOI paste

There are the following types of car polishing paste:

No. 4. The rudest. Used to remove noticeable abrasions and scratches.
No. 3. Prevents dullness and adds a slight shine.
No. 2, No. 1. The most effective types of GOI. They can give maximum shine.

To manually polish car windows from scratches or windshields, for which the product is most often used, you need to rub a soft piece of cloth with it and work the surface in a circular motion. To achieve maximum results, car enthusiasts often drip an oil-gasoline mixture onto a cloth (preferably felt).

Abrasiveness of GOI pastes

Method for polishing car glass and correct use of GOI paste

Every motorist is faced with the need to polish their windshield, which can be done with their own hands. This is necessary to ensure that driving is safe and the car looks beautiful and new. The fact is that over time, the glass becomes dirty, small or large scratches may appear on them due to sand that gets under the blades of the wipers, due to small pebbles flying while driving. Also, improper care, poorly selected abrasive paste and wiping with a rough dry cloth can have a negative impact on the appearance of glass. There may be many reasons, but there is only one solution to the problem - polishing the glass with the well-known GOI paste.

Stop! Do not polish!

But it’s a miracle that not all objects without exception can be polished. There are also those that are prohibited:

Steel (except for knives, which are polished with a whetstone with stretched leather) and nickel. They are processed with a special device, and not by hand.

Metal watch. But: you can polish it if you remove the mechanism from them.

Sapphire crystals on the watch. Not affected by paste. Polishing will not bring the desired effect.

Only when used correctly will a unique polishing product bring results.

GOI paste is one of the most popular means for polishing products made of various materials in our country. It is produced in the form of a green bar, similar to a soap bar, or in jars. It is worth noting that initially GOI paste was developed directly for grinding metal surfaces. But over time, its use spread to other areas of human activity. The product received its name in honor of the State Optical Institute, the enterprise where it was first obtained.

Treatment of minor damage

Minor damage makes the glass dull and unsightly, although scratches are difficult to see. The easiest way to fix such a defect with your own hands is, however, you should be careful, otherwise you can only make things worse.

It is recommended to adhere to the following rules for polishing to be successful:

The abrasive paste should not be aggressive, since you are polishing, not grinding. Felt must be tested first.
It is not recommended to use strong water pressure, as it causes a hydroplaning effect - the abrasive does not adhere to the surface being treated.
Be sure to use warm water, otherwise cracks may appear. It will also help eliminate waste quickly.

Before polishing the windshield with your own hands, you will need to wash the surface using windshield wipers. After this, you need to use GOI paste, which can be mixed with sunflower oil. Felt and felt circles are suitable as polishing materials.

If you want to cover the entire surface of the glass, then to make it easy to find the location of the defect later, you need to outline it with a marker from the inside.

You can see the glass polishing process in detail in the video.

Harmful to humans?

Concerns are often raised that the chromium oxide contained in GOI paste is toxic. These judgments are justified, since a given compound, depending on its valency, can exhibit different properties. Hexavalent chromium oxide is toxic and hazardous to human health. Meanwhile, in the production of GOI paste, a non-toxic trivalent compound that has passed examination is used.

At the same time, excluding the harmfulness of GOI paste to human health, it is recommended to use protective glasses and a mask when using it. This is due to the fact that when polishing products, dust is generated, which can cause irritation of the mucous membranes.

– this is a special abrasive material in the form of a dense granular paste intended for grinding and final finishing of metal surfaces. GOI paste has been used in metalworking, technology, arts and crafts and other fields of activity. The abbreviation GOI means State Optical Institute, the enterprise where this material was developed.

Polishing medium defects

When the depth of the scratches is no more than 300 microns, but they catch the nail if you run it over the defect, the damage can be classified as moderate. You can remove them yourself, but you will need a grinding machine and GOI paste.

It is advisable to wet the material before applying it to the circle, so as not to then touch the surface of the window or car headlight with the dry compound.
During the polishing process, the result must be checked. The paste can be easily removed with paper towels, and after removing it, you can inspect the surface.
It is recommended to mark the work area on the windshield in advance; this is not required for the side windows.
It does not matter what direction the abrasive moves, but overlapping stripes are encouraged.

Removing deep scratches

Deep scratches are those that easily catch the nail. They are the most difficult to eliminate, as the glass surface may become distorted. If the depression is large and located on the windshield, then grinding is not recommended.

To eliminate the defect, it is better to use a colorless compound that will fill the scratch. You can also use GOI paste, but it is important not to overdo it with pressure, as too much pressure will damage the material. To do everything correctly, it is recommended to watch the video with instructions.

We remove gross defects on products

There are several types of paste.
For polishing products with severe defects, processing is carried out with all types of paste. The sequence of their application is as follows: No. 4 → No. 3 → No. 2 → No. 1.

Rinse the polished product in kerosene. It can be freely purchased at pharmacy chains. After drying it, apply tsaponlac, which fights the oxidation process. Products coated with this preparation will not require re-polishing for a long time.

How to deal with dullness?

If dullness appears under the influence of the environment, it can be eliminated using a GOI and a grinding machine. This is delicate work, but such processing can be done with your own hands without any problems. First of all, remember that before polishing it is necessary to wash the area with cleaner and moisten with water.

You need to start the polishing process when the machine accelerates to 1100 rpm. There is no need to apply strong pressure, as it may damage the surface.

The contact area should be maximum (the angle between the glass and the disk should not exceed 4-6 degrees). It is also necessary to take into account that the circle must be in constant motion on the surface of the machine, without stopping. If you do everything correctly, you will be able to eliminate the dullness.

Mistakes when polishing a windshield

If you have never had to polish a car before or have little experience in this matter, then you should not deviate from the instructions and rules. Otherwise, you can make irreparable mistakes that will ruin the appearance of the windshield.

What not to do:

First of all, you should not use tooth powder for polishing. It can be used on headlights, but is not suitable for windshields. Because of it, new scratches will appear, since the surface being treated is too thin, so it is better to use GOI paste.
Even if you use high-quality glass polishes, it is not recommended to press too hard on the surface as this may cause microlensing.
GOI paste comes in different types: fine, medium and coarse. It is necessary to distinguish between them, since only a thin one is suitable for polishing a windshield.
During the process, it is necessary to monitor the heating of the glass, because if it overheats, it may burst.

To avoid these and other mistakes, it is recommended to first watch a training video on the Internet, and then start polishing.

Getting ready for polishing

The use of GOI paste has a number of specific features. It turns out that the remedy needs to be prepared. How to do this?

Soak a cloth in gasoline. The one that is poured into lighters is also suitable.

Apply a thin layer of paste to the moistened cut.

Wipe the unnecessary piece of metal to remove excessively large pieces that will lead to scratches.

It is strictly prohibited to smear the product itself with the product!

Do-it-yourself windshield polishing with Goi paste

Today there are all kinds of gels, pastes, and aerosols available. Commonly used types of polishing agents include:

wax;
abrasive;
polymer.

The result of polishing car glass
Each of the products has its own characteristics. Wax and polymer rub the car until it shines, creating a film on it that protects it from external influences. Abrasive ones do an excellent job of removing scratches and small cracks.

Pasta was invented in the 30s of the last century. Today, you can find green sticks of paste at the car market or in a specialized store either in 30-gram jars or in 1-kilogram pieces.

Packaging of GOI paste

There are the following types of car polishing paste:

No. 4. The rudest. Used to remove noticeable abrasions and scratches.
No. 3. Prevents dullness and adds a slight shine.
No. 2, No. 1. The most effective types of GOI. They can give maximum shine.

Varieties of Green Polish

Three types of polishing paste have been known since Soviet times:

No. 4. The first rough processing was carried out with it.
No. 3. The surface becomes matte, without streaks.
No. 2 and No. 1. Used for finishing, adding gloss to surfaces.

These varieties differ in the size of the abrasive particles included in the paste.

This drug was produced:

in a solid block;
in a box in the form of a viscous liquid mass.

This product is popular due to its excellent properties and inexpensive price.

Differences between grinding and polishing

Car owners need to know the clear difference between the polishing and grinding process.

Sanding is a rough method that involves exposing the surface to abrasive materials that level the surface by removing a certain layer.

Sanding is used to clean deep cracks and scratches that cannot be masked by polishing. After rough sanding, the surface will look matte. To level it, you need to use a fine-grained abrasive after a coarse abrasive.

Polishing, unlike the previous process, is the next stage of sanding, a less deep method of affecting the body, headlights or windshield of a car.

Any driver can do it with his own hands, removing minor scratches from the windshield and giving it shine. Polishing is the application of a protective agent (paste, gel, aerosol, cream). In particular, GOI polishing involves:

restoration of the factory shine of surfaces (windshield or side glass, headlights, body);
removing minor scratches and cracks;
creating a protective film with a dirt-repellent effect.

Diamond polishing pastes
To determine what type of GOI polish you need, evaluate the condition of your car. If you see that it has very small scratches and the shine has diminished slightly, use product #3, which removes minor visual imperfections. Or use Nos. 1 and 2, which can quickly give a presentable appearance to the car. If your car requires more thorough work due to deep scratches, use GOI No. 4 with a good abrasive effect.

If you find it difficult to determine the condition of the vehicle by eye, scratch the surface of the car with your fingernail. If it clings to a scratch, the car needs sanding; if not, it can be polished.

Polishing a car windshield

Sanding or polishing?

In some cases, where the damage is more noticeable, polishing the glass is not enough. In these cases, grinding is carried out. Sanding is a rough method of leveling the surface using abrasive materials, removing a certain layer. Sanding is used to clean out deep scratches. To do this, use the most granular paste No. 4.

It won't be easy to handle this kind of thing manually. This is a longer process that requires care and patience. After this, the surface looks matte. To level it after rough processing, polishing is carried out with a fine-grained abrasive. In this case, polishing is the next processing step after grinding and is carried out using fine-grained paste No. 1 or No. 2.

Polishing Features

The use of the paste-like substance GOI has many nuances. For example, many drivers have a question: do they need to dilute the paste-like substance with something? It is known to be quite hard and dense. The answer to this question is: it is possible and even necessary. In order to easily apply the product to a rag, you need to make it more liquid using machine oil. It is added at the rate of a few drops per small piece of product.

Preparation of a solution from GOI paste

If you decide to polish the plastic surfaces of your car, use the softest cloth (flannel or cotton). To process a metal body, you can take a coarser fabric: jeans, felt or tarpaulin.

The polishing process involves the following stages with their features:

Before starting work, it is necessary to degrease the surface with shampoo, alcohol or glass cleaner. This will give a positive result when polishing;
If there are scratches on the windshield, rear window or headlight, it would be much better to remove them using an electrical device, since doing it yourself will not give the desired effect. Carrying out all the processes manually will not only take you several hours, but will also make it possible to remove only the haze of the headlights. A polishing machine, unlike doing it yourself, does the same amount of work in half an hour;

Polishing with GOI paste using a drill

you need to prepare the workplace (remove dust from nearby surfaces - it can interfere with work);
The substance should be applied to a small area of the windshield, headlight or body. Only after thoroughly rubbing the product into the surface can you move on to the next area;
After finishing work, you need to wash the headlights or the car body again, using non-contact foam (if grinding was carried out) or strong water pressure (for regular polishing).

How to polish a windshield with your own hands at home

Hello, dear friends! I think many motorists are familiar with the problem of scratches appearing on the windshield. Moreover, factors independent of the driver and mistakes of the car owner can lead to their appearance. Therefore, it will be relevant to talk about such a topic as polishing a windshield with your own hands.

The procedure can actually be performed independently and at home. And to be more precise, in garages. You shouldn’t do this outdoors, because there is too much dust and pollution around.

There are various tools described on Drive2 and thematic forums. Many people suggest using toothpaste, polishing the glass surface without a machine at all, etc.

But if you want to get a good result, and not contact the service, you will have to do everything smartly and technologically.

How much does the service cost and how to find specialists?

The service for removing scratches from glass is provided in auto repair shops . Private craftsmen do similar work. The cost depends on their volume, number and depth of defects. The average price in Russian cities is 500 rubles.

You can find specialists through advertisements on the Internet. As a rule, in each city there are several workshops that provide polishing services for car parts. It is recommended to choose proven services that have positive reviews.

Before agreeing to carry out the work, you need to clarify what result will be obtained in the end and whether the treatment will affect the strength of the glass.

Materials and tools

Do not forget that the condition of the windshield largely depends on the wipers installed on your car. If they are worn out or not cleaned, the brushes will not only stop cleaning the surface, but will also cause scratches.

To eliminate this, it is important to choose suitable windshield wipers. How many of you know about the difference between summer and winter wipers? I advise you to read the material at the link to understand this issue. This will allow you to treat the condition of the glass more correctly, as well as delay the need for thorough polishing. If everything is fine with the brushes, they work correctly and do not scratch the surface, there are many reasons to still damage the glass. And they cannot always be prevented.

Therefore, polishing can be safely called a necessity. Sooner or later such work will have to be done. By yourself or with the help of a car service, each motorist decides for himself.

A good way of protection is removable tinting. It is mounted on the windshield. If the design does not violate the law, tinting will perform protective functions. If necessary, the tinting can be changed, and the glass remains scratch-free.

If there is no such solution, the glass will have to be restored. To do this, you should acquire the following materials and tools:

electric polishing machine;
felt circles in the amount of 2 pieces;
first circle for cerium oxide;
second circle for applying Goya paste;
cerium oxide itself, if there are deep scratches;
paste called Goi (suitable for finishing);
a pair of hands;
time;
patience and endurance;
masking tape;
film for covering a car.

As for the most basic tool, namely a polishing machine, some people use screwdrivers and grinders instead. I strongly do not recommend it, since you can cut off too much glass, which creates a lens effect.

Polishing by hand, using only hand strength, is possible if there are no significant scratches or damage. That is, when preventive polishing is carried out.

I would also like to remind you that in case of cracks and chips on the surface of the windshield, a set of special repair and restoration work is carried out. But they are even more difficult than polishing yourself.

Sequence of procedure

As the practice and experience of motorists shows, using goyi toothpaste is much more rational and effective than toothpaste. Although the latter also has a right to exist in the matter of finishing the windshield to a shine.

My personal experience suggests that the best remedy for removing scratches on the windshield of any car is the voiced paste together with cerium oxide as a means to combat deep damage in the form of scratches. But the choice is yours. Some even polish with soda, believing that it is in no way inferior to oxide. But it’s still easier to buy and the cost is lower. On this score, it will be interesting to read your reviews, as well as the results of what happened before and after when using certain folk remedies.

The entire polishing process can be divided into several successive steps. I strongly advise you to adhere to this structure of your work process.

When you have managed to purchase and assemble the entire kit for restoration and polishing work, you can begin the procedure.

It consists of the following actions:

Body wrap. It is important to protect body parts from accidental contact with pastes and oxide. The products dry quickly, so this will save you from having to wash the car again;
Oxide treatment. The product is applied with water not to the glass, but to the polishing wheel. Be sure to keep the machine at medium speed. Do not allow the glass to overheat, stop periodically;
After finishing the oxide treatment, thoroughly rinse the glass surface and replace the wheel on the machine;
Now the paste is applied. The product is cheap, but incredibly effective. For better performance, you can mix Goya paste with a small amount of paraffin or wax;
After finishing the finishing process, remove the masking tape from the body.

At this point the polishing can be considered complete.

Please note that there are many videos and instructions on the Internet that clearly show the entire process of polishing car windshields yourself. You shouldn't rely on them completely. Take only the main ideas and main recommendations.

When working independently in a garage environment, it is very important to distribute the force from the polishing machine extremely carefully and evenly. During the processing, a layer of glass is removed, which allows you to remove scratches. But you can’t shoot more than 10 microns.

Toothpastes

Practice shows that they really help polish glass. You can buy teeth whitening paste by checking for additives. After all, some of them can ruin the surface. In general, toothpastes and powders are an outdated polishing method that was more popular during times of shortage. Today you can find a huge range of specialized products that will give the best effect. Among these it is worth noting:

Polishes that provide a protective effect;
Optical polishes that can fill glass cracks or scratches;
Abrasive pastes for removing damaged top layers.

Polishes can be Teflon and wax. The simplest and cheapest solution is wax, while Teflon is more durable and has more pronounced protective qualities. Therefore, it is better to choose Teflon. After all, in the future even dirt will not settle on it. Teflon has an antistatic effect and can withstand up to 12 washes, while wax is washed off quickly.

Deep scratches

When very deep scratches appear on the forehead, which cannot be removed with ordinary polishing wheels using the mentioned products or their analogues, many motorists give up.

In practice, there is nothing critical or scary about this. Yes, sometimes deep scratches are more like cracks, and then you have to repair the glass or replace it completely.

There is a good way out of the situation. It’s not the most budget-friendly, but you can definitely save on car service costs. I'm talking about diamond type polishing pads. They have a special diamond coating that can save the front from deeper scratches.

When working with such circles, it is worth considering that they quickly grind down the glass, and therefore require extreme caution. Make sure that the machine moves evenly and do not allow the tool to remain in one place for a long time. To avoid creating a lens effect, all glass is polished. Processing continues until the scratch disappears. Then take cerium oxide again and finish polishing with goya paste.

Although there is an impressive range of various special products on sale, goyim remains a priority for most motorists. This is largely due to the extremely low cost coupled with excellent efficiency. Therefore, a natural question arises about why overpay.

If you have a different opinion, be sure to write in the comments. Let's discuss.

Thanks to everyone who reads us! Special thanks for inviting your friends to our site! Continue in the same spirit! And we will answer you with relevant and useful materials!

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Necessary equipment

Ideally, you will need a special polishing machine. However, if you don’t have one, then a simple electric drill can do the job perfectly. Just purchase a special attachment for a felt (or better yet, felt) polishing wheel. Stock up on clean napkins and soft cloths. You will also definitely need a sprinkler. In addition, purchase in advance a fine paste designed for polishing car glass.

We remove scratches from the side window of a car with our own hands!

Hello, dear car owners! In this issue I will tell you how to remove small scratches from glass. I think everyone has had a similar problem when dust or sand gets on the window seal.

, as a result of which the glass itself suffered, especially during its lowering or raising.
This is not surprising, because any solid particles act as an abrasive and cause scratches
.
The end result is not a very pretty picture! In principle, such minor damage does not need to be removed, since it does not interfere much with the view, but as for aesthetics
, that’s everyone’s business! If you are a perfectionist and love to work with your hands, this article is for you!

So, to give the glass its previous look, we will need some accessories.

Any polishing tool - machine, grinder, drill
, etc. Of course, you will also need an attachment for sanding wheels!
Emery wheels
, grit 800, 1500, 2500 and 3000 - preferably two of each.
Cerium oxide powder or GOI paste
. Perhaps some other polishing material.
Felt circle, tape
, water and a couple of clean rags.

It's good if you have all these supplies! Otherwise, you will have to visit several hardware stores or ease the situation and buy a ready-made set on AliExpress

. There you can find both a full set and a separate polishing powder.

Links to products will be in the comments under the article!

If you have the necessary supplies, then you can proceed directly to the process itself. To make it easier for you to navigate, I will try to put everything into several stages

1)
Remove the scratched glass
from the car and separate the damaged area with tape. To do this, you will have to remove all the handles, as well as the door trim.

Now we arm ourselves with a drill, and attach a large emery wheel to the nozzle.
You need to find the deepest scratches
in the area of the glass that is highlighted with tape. Ideally, they need to be cleaned until they disappear, and so that the debris that arises in the process does not bother you, use water and a rag.

After rough processing, you need to gradually reduce the grit of the sandpaper.
The main goal is to remove dullness
. You will not achieve absolute transparency with abrasive wheels, but it is quite possible to get closer to at least the minimum semblance of glass.

When the glass has been sanded with the finest sanding wheel, you can
begin finishing .
Cerium oxide must be diluted with water and applied to the glass.
If you are working with GOI paste, then it is best to rub it into a felt circle. The polishing process is quite long and takes about 30 minutes
.

Important!
Please note that intensive grinding and polishing causes the glass to heat up.
Important!
Never remove scratches from the windshield, as grinding and polishing will make it look like a lens, which will be harmful to your eyes.
Important!
Do not polish the windshield, because this makes it more fragile, which is unacceptable for a windproof element.

Polishing glass from scratches, in what cases you can do it yourself and when to contact a specialist

You can polish your car windshield yourself or at a car service center. If the scratches appeared due to the work of the wipers, then you can deal with the problem at home. Large scratches and chips on the windshield can only be removed by specialists.

To determine whether a scratch is deep or not, just run your fingernail across the glass; if it clings to it, it means it is deep.

Reasons for clouding of the windshield and the appearance of small scratches on it:

wipers work when sand gets under them;
pebbles falling on the glass while driving;
improper cleaning of glass from frost;
improper car washing.

The presence of minor damage to the windshield leads to the following problems:

visibility deteriorates, so the driver strains his eyes more and this makes them get tired faster;
existing defects distract attention, which negatively affects traffic safety;
at night, the light from the headlights of oncoming cars is distributed unevenly, and this creates discomfort for the driver and passengers;
the appearance of the car becomes less attractive, especially if traces from the wipers are clearly visible on the glass.

Total

Large chips and scratches on the glass cannot be removed - only covered with the prospect of replacing the defective window. Small cobwebs and abrasions from wipers can be removed with cerium-based polishing paste.

You can start working provided that the initial condition of the window is good: there are practically no deep “scratches” that can be felt with your finger and nail. It is better to perform the operation with a polishing machine, after practicing on unsafe glass.

The working materials must be clean, without various grains and grains of sand, otherwise the result will be exactly the opposite. It's better to reserve time. If we are talking about polishing 100% of the surface of the front window, then it will take about 4-5 hours. This includes cleaning, washing and housekeeping.

How to remove scratches from a car windshield

There are several proven methods that allow you to remove minor scratches and clouding on your windshield at home. You can cope with the work yourself using available tools.

The windshield is restored by polishing it. The existing options differ from each other only in the material used for this.

To carry out the work you will need:

grinder or drill with adjustable speed. It is not recommended to use a grinder, as it operates at very high speeds;
felt circle;
polishing paste or its folk substitute;
spray bottle with water;
marker, with its help problem areas are marked;
soft cloth;
masking tape. With its help, areas that do not need to be polished are protected.

Toothpaste

You can try to solve the problem with toothpaste. To do this, you need to take one that has a whitening effect, since it contains an abrasive. Using modern gel toothpastes to polish your windshield will be ineffective.

Toothpaste is applied to a cotton swab and rubbed in a circular motion into the damaged area. After this, the glass is washed well. This method will help cope with only very minor damage and abrasions.

Fine sandpaper

If polishing with toothpaste requires a lot of effort and time to achieve results, then with sandpaper, on the contrary, you can easily overdo it.

To do this, use the finest and softest sandpaper. You must work carefully. If you press hard on it or move it in one place for a long time, there is a risk of new scratches or indentations appearing. This causes the curvature of the glass to change and will look worse than a small chip.

The process of polishing glass with sandpaper requires a lot of effort and time. To do this, use fine sandpaper from 600 to 2500. Start working with paper with the largest grain, that is, with the lowest number. Gradually change the sandpaper and reach the finest grain. The paper must be periodically moistened with water.

Sandpaper allows for rough processing, after which the glass is polished with diamond paste or GOI paste is used. The paste also has different grain sizes. They start working with coarse grains and finish with fine grains.

Paste GOI

GOI paste contains chromium oxide and is a universal polishing and grinding agent. It can be used to polish metal, plastic and glass. Men who served in the army are well acquainted with it. There it is used to rub plaques and buttons.

At home, metal and glass products are polished using GOI paste. When choosing a paste, you need to pay attention to the degree of its abrasiveness. GOI paste No. 2 and 3 is suitable for polishing glass.

GOI paste is applied not to glass, but to fabric; it must be lint-free. Felt works best. To make the paste fill scratches better, you can melt it in a water bath and then apply it to the fabric. First, a paste with a large grain is applied to the glass; its number will be smaller. Polishing is carried out, after which they take a paste with a higher number, that is, with a smaller grain, and continue to polish the glass.

Car windshield polishes

On sale you can find a variety of polishes for car windshields. Such products should only be applied with a rag or cotton pad; felt cannot be used for this.

After applying the composition to the problem area, rub it evenly to avoid sudden transitions. This is an effective method that allows you to completely remove small scratches and make deeper ones less noticeable.

Manicure polish

Some craftsmen use manicure polish. Only clear varnish is suitable for this. It is carefully applied to the scratch and wait until the composition dries. Remove excess using an eraser or rubber spatula.

This method helps hide deep defects. The disadvantage is that when exposed to sunlight, the refraction of glass and varnish will be different.

Video: how to polish a windshield

Selecting a polishing agent

Thanks to the development of the modern chemical industry, there are many different car glass polishing mixtures on the market. Today there are 2 types of compositions - based on Teflon or wax. You can use powder or paste.

When choosing a polish for auto glass, it is important to familiarize yourself with its composition. Aggressive sanding components may cause gouges in the surface. The following polishing products are very popular among car enthusiasts:

paste GOI. When choosing, take into account the type of composition. A thin mold is used for polishing. Medium and coarse paste may give an undesirable effect. The light composition removes 1 micron of the surface, this is enough to remove small scratches;
3M paste 60150. The polishing compound is designed to eliminate light damage, plaque, and scratches. The consistency of the paste resembles a white viscous liquid. It does not contain harsh chemicals;
diamond pastes. They have different grain sizes. This paste should be applied with a felt circle or felt cloth. First, a coarse-grained composition is used, then they move to a medium-grained one and end with a fine-grained one. The grain size is determined by the color of the packaging;
Turtle Wax polish. The product was developed under the brand of a popular auto chemicals manufacturer.

These car windshield polishes do an excellent job of treating the surface.