How to clean windows after renovation? How and with what means to clean plastic windows from various contaminants? How to wash the frames of plastic windows after repair.

After graduation finishing works stains and streaks often remain on plastic windows building mixtures... The polyurethane foam must be cut off and the residues removed with Dimexide, White Spirit or a special remover. The protective film is removed with a scraper and a hair dryer, and the remaining glue is dissolved with alcohol. Paint, putty and whitewash can be cleaned with a spatula or household chemicals. We will tell you how to clean windows after renovation and remove scratches from plastic profile.

The finishers have finished their work, but before the house shines with cleanliness, you need to remove construction waste and wash all surfaces from paint stains, putty and lumps of polyurethane foam. First, let's take care of the windows: first of all, we remove the protective film, usually this is done in one motion, but if the windows have been installed a long time ago, and no one has removed the film, then you have to tinker.

Protective film

Some owners neglect the instructions and do not remove the protective tape, explaining that the repair is not over yet and the plastic profile needs to be protected from stains and construction dust... This is of course true, but over time the glue changes its properties and the film "sticks" tightly to the frame. It is better to remove it immediately and stick on masking tape, which is easily removable and protects from dirt no worse.

If you did not know this, and the film had time to stick tightly, then use one of the proposed tools:

Building hair dryer and scraper for sintered metal plates. It is necessary to heat the film and remove it with a scraper for cleaning sintered plates.
Scrape off pieces of film with a razor or utility knife, and erase the rest with an eraser. It will take a long time to clean, but the result will not disappoint you.
If the film is crumbled, it can be difficult to clean. Useful for work White Spirit or industrial alcohol. Apply the product to the pieces of film, wait a few minutes and scrub well with a hard-bristled brush ( metal can not be used!)
Another way to remove small pieces is to stick a wide adhesive tape over, squeeze it well, smooth it, wait an hour and tear it off along with the adhering pieces of film.

Attention! Apply " Cosmophen»And similar products of other brands only as a last resort, if household chemicals are powerless. Some types of plastics may discolor from solvents or lose their gloss.

We wash the putty and plaster

During registration window opening and wall fillers, building materials often fall on glass and frames. Plaster can be gypsum, cement or lime. Regardless of the composition, it is washed off the plastic profile with a damp cloth. If it has time to dry, then use a dry rag or spatula, depending on the degree of pollution. In order not to scratch the plastic, the sharp edge of the spatula is wrapped with a rag and the pieces of plaster are cleaned off, cutting it off at the very profile.

Sealant (silicone)

If you hit the windows silicone sealant, there is nothing wrong with that. Just wait until it dries, pick up the edge with a spatula, grab your fingers and pull gently until it is all in your hands.

Whitewash

Dry whitewash from glass and plastic can be easily erased with a dry rag, wielding a wet rag, you will only carry dirt and will wash away streaks and streaks for a long time. After you have removed most of the whitewash with a dry rag, you can start cleaning the window. The plastic profile is washed with soapy water, and the glass with a window cleaner or household detergent composition (for 2 liters of water 1 tbsp. l. ammonia or 2 tbsp. l. vinegar).

Things are not so good with lime whitewash, it will not lag behind so easily. It can be removed from the glass with a blade or a utility knife. In order to wash off lime from PVC windows, use one of the proposed tools:

Cillit, dilute with water one to one and apply on the stained surface, after a few minutes rub with a hard washcloth. Be careful, Cillit contains oxalic acid, check in a place hidden from sight before use.
Dissolve a tablespoon of vinegar in a bucket of water or citric acid and wash the profile.
Table salt also helps to get rid of lime. A glass of salt on a bucket of water.
Instead of salt and vinegar, you can add vegetable oil to the water: 100 gr. 10 liters. water, with the same composition they wash the stained floor, vinyl wallpapers and even wooden furniture... After the whitewash has been washed, the surfaces are degreased with dishwashing liquid. Lacquered furniture do not degrease, but polish with a soft cloth.

Wallpaper glue can be easily washed off with warm water.

Polyurethane foam

If the team was not very careful, then after their departure you may face another problem: dried polyurethane foam on the profile, window sill and glass. If the foam has frozen in a piece, then it can be knocked off with a spatula, and the remaining trace can be washed with the help of improvised means. How ? We will briefly touch on this issue, for more details, click on the highlighted fragment.

Sunflower oil ... Fresh dirt should be rubbed with a cloth soaked in hot vegetable oil... An old stain will take longer. Rub and cover with an oiled rag, after 30 min. the remaining foam will be much easier to wash off.
Vinegar 9%... With a little effort, you will wash away any traces of foam.
If the foam does not have time to harden, then it can be easily washed off " White spirit»Or a liquid for cleaning a nailer, which contains ethyl acetate. Apply the remover only with a white cloth, otherwise the dye will dissolve and be absorbed into the plastic, it will not be easy to wash it. But it is better to let the foam harden and remove mechanically.
« Dimexide» – pharmacy remedyused by experienced builders to remove traces of polyurethane foam. It is necessary to cut off the main part of the piece with a blade, moisten with Dimexide cotton pad and rub well, put the disc on the spot and leave for 5-10 minutes. The foam will soften and easily fall behind the plastic.
You can use a homemade "wash", for this you need to mix 10 grams of acetone and solvent A-649, 20 gr. vinegar essence and 50 gr. liquids for cleaning construction guns. Installers assure that this composition dissolves polyurethane foam of any brand.

Remove scratches

If during the repair process scratches appeared on the plastic, then in this case the solvent will come in handy. Cosmophen-5", Which we promised to tell in more detail. It is used by professional installers to polish the profile, remove scratches and traces of abrasions.

There are three groups of products for plastic restoration: liquid plastic, cleaner and polish.

Liquid plastic is a self-hardening mass, which is filled with deep scratches, after which the surface is polished. It is also used for gluing plastic surfaces. it happens different colors.

Unlike liquid plastics, the cleaner does not fill the scratch, but dissolves the PVC. After you have applied the solvent, you need to carefully smooth the surface and polish.

Plastic polish contains substances that fill minor scratches and scuffs, creating the illusion of novelty and gloss.

Prepare for work:

A few white rags, colored rags shed from the components of the cleaner, and instead of removing scratches, you will get a permanent colored stain. When choosing a rag, check if it leaves any lint.
Selected remedy.
Sandpaper No. 400 or 600.
Putty knife.

Prepare the surface before starting work: wash with soapy water and degrease with alcohol or window cleaner.

Sand the scratched area, this may be sufficient.

If the scratch is very deep, take a spatula, apply some liquid plastic to the edge, and press the spatula firmly against the surface to fill in the scratch. Wipe off the rest of the glue with a cloth. You need to act quickly - the plastic hardens in 60 seconds. Next, you need to apply on a piece of fabric " Cosmophen-20»Or gently polish the affected area.

If the scratches are not so deep, use a plastic thinner " Cosmophen-5". You need to apply a little of the product to the surface, as soon as the plastic has softened, it is gently smoothed with a brush to fill in the scratch. After hardening, the place of restoration is polished soft clothdipped in " Cosmophen-20».

The polish is used to remove minor scratches and abrasions. A soft rag is moistened in the product and the damaged surface is polished in a circular motion.

We would like to warn readers that: the work on plastic restoration is rather painstaking and requires certain skills. The quality of the plastic varies greatly depending on the manufacturer; an inexperienced person may make a mistake in choosing the means or in the process of work. Therefore, we still recommend entrusting the removal of scratches to the specialists of the company where you ordered the windows. The cost of such services is unlikely to be higher than the cost of a repair kit.

Trademark Cosmofen not the only manufacturer of such products, you will find many analogues in hardware stores.

Anastasia, February 9, 2017.

After a long time after installation, plastic windows become dirty, covered with a layer of dust and dirt. After renovation works traces of polyurethane foam, building mixtures, paint and other substances can be found on the profile. To clean plastic windows, you can use not only household chemicals, but also professional products that are sold in the store. When cleaning surfaces, you need to follow some recommendations.

If the windows are installed in a new building, and the protective film with the manufacturer's logo has not yet been removed, then the sticker must be removed and the plastic must be wiped with a wet rag. After some time after installation, windows are usually covered with a thick layer of dust and dirt.

Even if the builders worked carefully, after the repair, a thick layer of construction dust still appears on the windows. Many people try to get rid of it with water or a rag. This option is simple, but not effective, since it will still remain white bloom... To wash a window with water, you need to wash it more than 10 times, and this is not a guarantee that the dust will be completely removed.

To clean the window from construction dust or after winter from dirt, you must:

dissolve a glass of vinegar or a tablespoon of alcohol in 1 liter of water. If these funds are not at hand, then bleach can be used in a proportion of 50 g per 1 liter of water;
moisten a sponge in a solution and wash the glass unit, after which the glass uses a newspaper;
if the window is made with blind parts and it is impossible to reach some places, then you can use a special brush with a telescopic handle. The glass is wiped with a sponge and detergent solution, and then with a brush, the back side and rubber spatula water with residual dirt is eliminated.

Cleaning from cement and building mixtures

There are several ways to clean a plastic window from dust and and building mixtures:

Dissolve liquid soap in water and with a rag, wipe the plastic. This is an easy way to remove dust and mortar deposits.
Apply liquid soap to the profile and wait 15 minutes. During this time, the dirt will dissolve and can be easily removed with a cloth.
If after these measures there are stains from concrete or plaster, then they can be removed with a clerical knife.

Removing traces of polyurethane foam

It happens that after installation, the remains of polyurethane foam get on the profile, which cannot be washed. In this case, there are several ways to clean the window:

Take a spatula and gently scrape off cured foam... It is often removed effortlessly. If the foam has strongly eaten into the plastic, you will have to mechanically clean it.
Use an acetone-based cleaner or solvent. Soak a piece of felt with any of these liquids and apply to the remaining foam.
As soon as the foam gets wet, you need to quickly wipe the profile with a piece of felt until the sealant is completely eliminated. The procedure is performed with rubber gloves.

Cleaning windows from glue

Remaining adhesive from the protective film on plastic windows is a common problem after renovation. At home, the glue can be removed with a special product such as Cosmofen. Depending on the composition, the product has a numbering. “Five” is the most delicate solution, “Twenty” is a very concentrated composition.

You can use a hair dryer to clean the profile: warm up the remaining glue and remove with a new plastic spatula. To completely clean the profile, it can be treated with an acetone-based solvent and then rinsed with water and powder.

What if all else fails?

In difficult situations, the electromechanical polishing method is used. To do this, you need to take a drill or small grinder, felt circles and acetone-based solution. Polishing is carried out as follows:

Dirt is removed with a detergent and a spatula.
The profile is polished with an electric tool with a special wheel. This removes a thin layer of plastic along with stubborn dirt.
In this way, minor scratches can be removed. If they are large, liquid PVC or white acrylic can be used.

If you are working with solvents and special means, nessesary to use latex gloves and protect your eyes.
Do not allow any funds to fall on rubber compressor... Abrasive substances damage the rubber and deform the tightness of the window. In such cases, some windows cannot be repaired, because there are types of profiles that are produced with rubber installed in them and cannot be replaced.
Remaining traces from building materials are removed with a special agent for cleaning cement-lime mud.
If you are working with simple solvents that are not intended for PVC, you need to be careful. They may contain acids that can break the profile.

Professional cleaning products

If the windows face a busy street, they get dirty faster. In such cases, professional tools come to the rescue. Professional cleaning products contain components that effectively wash away dirt. They not only remove dirt and soften water, but are also dirt repellent. Any surface treated with soft water for a long time stays clean and cleans up better afterwards.

After the first wash, the windows will shine for a long time, dirt and dust will not stick to them. Often such products are not used in sunny weather, as they dry quickly and unevenly, leaving streaks and losing their protective properties. To work with professional detergents and remove stains, it is necessary to use scrapers, brushes, coat for application. Professional products can be ordered from the online store. Finnish, German and Swedish are considered to be the best of them.

Window sill cleaning

Household chemicals can be used to remove dirt from plastic windowsills. But these products may not be delicate in relation to the surface to be cleaned and may cause allergies.

To clean the windowsills, use Mr. Proper. They effectively remove dirt and do not require long rinsing with water. Froch kitchen cleaning agents perfectly clean dirt, soot, yellowness, and scotch marks. Deep stains will be difficult to clean, but such products are safe for allergy sufferers.

Help window cleaning sprays deal with even the most stubborn traces of dirt and yellow stains from fading. They clean the surface easily plastic window sill and washed off with water. Housewives often use products created for washing hobs... Powders are especially effective as the abrasives remove even stubborn stains.

To clear your profile, you can use the services of a cleaning company. Specialists will clean the windows professional means to a mirror finish.

Protect during repairs window profile any kind of contamination will fail. Paint or plaster can get on the glass, polyurethane foam can get on the windowsill, the slopes and frame get dirty. In order not to damage the surface to be cleaned and new finish, you need to clean them properly. Therefore, many people have a question - how to clean windows after renovation?

Before you start washing window block, you need to prepare him for this. If there are traces of glue, foam or plaster on it, then the following recommendations must be followed:

To remove glue stains from the surface of the window profile, you need to use chemical preparation Cosmofen. Or remove stains with a spatula, warming up with a hairdryer in advance.
The build-ups from the hardened polyurethane foam must be scraped off with a spatula or scraper, while being careful not to spoil the integrity of the window surface. The remaining traces must be treated with a special solvent containing acetone. The contaminated area is impregnated with the liquid, and after 6-8 minutes the foam is soaked. Then remove stains with a damp cloth. You can purchase such a solvent at a hardware store.
Plaster traces must be well saturated with water. Then carefully remove them with a spatula or special scraper.
Film with new plastic windows it is worth removing as soon as possible and before the onset of severe cold weather or heat, otherwise it will be difficult to do later. If you cannot remove the film coating, you can use a hair dryer to dry your hair. To do this, you need to direct the hot stream to the surface with the film and keep it until it slowly begins to peel off. Then you need to remove it immediately.
Having cleared the window profile from contamination with building material, you can start washing the windows.

Cleaning window profiles

To clean a window profile, you must first remove dust particles from hinges and other window mechanisms with a vacuum cleaner. Then it is necessary window frames wash with soapy water or other detergent. To do this, dissolve half a piece of soap or 2 tbsp. In a five-liter container with cool water. l. cleaning agent. Moisten a cloth in it and wipe the profile. If after this procedure there are traces on the washed windows, then you must use other means or household chemicals.

Household chemicals for cleaning window frames

There are many types of window cleaning products on the market. In case of using any household chemicals, you must follow the instructions for use.

The following detergents can be used for windows:

"Sanita". Has a creamy texture. Apply to the surface to be cleaned for 3-4 minutes and rinse off clean water... For stubborn stains, leave the agent for 5-6 minutes.
Domestos. This product has a whitening effect and helps to remove stubborn dirt. In order to get a good result, you need to apply it to the window profile for 12-15 minutes, then rinse with clean water.
Mr. Proper. Available in powder and liquid form. The powder dissolves in water (6 tsp. To 5 l.), And the solution is applied in invariably liquid state... The prepared mixture is placed on the window frames, and after a couple of minutes it is washed off with a sponge soaked well in plain water.
Cillit Bang. It is produced with a spray bottle, with which the liquid is sprayed onto window surface... The applied product should be rubbed until foamy and left for 8-10 minutes. Then wipe it well with a cloth.

You need to work with household chemicals in a well-ventilated area and with protective equipment (rubber gloves, mask).

Folk ways to clean windows

It is possible to wash more severe pollution with the means that are at home. These funds include:

Vinegar essence. To clean windows from dirt, you need to dilute a 9% solution of vinegar in cold water in a ratio of 3: 1. With the resulting liquid, moisten a cotton pad abundantly and wipe the dirty areas.
Kerosene. Helps fight paint stains well. Gasoline can be used instead. It should be noted that this agent, due to its toxicity, should be used only if other cleaning methods are not effective.
Nail polish remover. Such a liquid perfectly wipes away glue and paint stains. It is worth choosing a product that does not contain acetone. Wipe the windows well with a napkin moistened with this liquid.
Ammonia. To wash window profiles, a solution prepared from alcohol and water (25 ml per 1 liter) is used. The resulting product will quickly cope with settled dust and other traces of dirt left after repair work.

If you wash windows after renovation using these cleaning methods, they will shine clean.

For effective window cleaning, the following guidelines should be followed:

To clean windows, especially when working with chemicals and solvents, it is worth wearing rubber gloves to protect the skin of your hands from their harmful effects.
Do not allow any substance to come into contact with the rubber window seal. Aggressive substances in its composition can spoil the rubber and break the tightness of the window. Some profiles are made with rubber already soldered into them, and if it is damaged, the entire window must be replaced.
If traces of glue mixtures and putties have strongly eaten into the window surface, then you can get rid of them with special products designed for cleaning cement-lime dirt that are on sale in building materials stores.
Extreme care must be taken when working with common solvents that are not designed for plastics, as the chemical content is high. active substances may damage the window profile. Taking advantage of different ways, following such recommendations, the question of how to clean the windows after repair will no longer arise. These methods can be used to clean windows in country house... It will be possible to cope with such a task simply and quickly.

To make the apartment look proper after renovation, you need to clean it of traces of plaster, paint and debris. In this case, windows traditionally cause particular difficulty. Someone hires a cleaning company for this, while someone else prefers to do everything on their own. If you do not know how to clean plastic windows after renovation in a new building, but would really like to know this, then this article is for you.

Preparatory stage

Window cleaning after renovation is carried out in several stages. The first is the preparation and removal of serious contaminants. Let's list the most common types of pollution and ways to eliminate them.

Glue spots. Often they remain after the manufacture of plasterboard slopes, gluing wallpaper on the walls or foam plates on the ceiling. To get rid of them without damaging the surface of the frame and glass, they use products based on special solvents. If they are not there, then heat the adhering drops of glue with a hairdryer and carefully remove them with a spatula.
Cured plaster. Moisten it with water and scrape off with a spatula.
Polyurethane foam. It should be removed carefully so as not to damage the integrity of the window. If the foam does not yield, treat it with acetone solvent. To do this, soak a microfiber cloth in it and apply it for a few seconds to the place where the foam has eaten. Once the foam is soaked, wipe it off with a rag.

Washing windows

When the traces of building materials in the new building have been removed, it's time to start cleaning the plastic windows. You should start with glasses, using purchased or self-prepared products. You need to wipe the glass with a wet rag and wipe it dry, then do the same, only using a cleaning agent.

Folk remedies self-cooking. To wash well window glass, it is not necessary to buy expensive branded formulations. You can cook effective remedy and yourself. To remove streaks, you need to mix the following ingredients:

technical or medical alcohol - 50 ml;
9% table acetic acid - 50 ml (if there is no acetic acid, then a pinch of citric acid or juice of 3-4 lemons);
half a liter of water;
corn or potato starch (tooth powder or chalk) - 1 tbsp.

Mix all the components, spray on the glass with a spray bottle and wipe with a napkin. To remove dried dust or paint stains, add liquid soap or dishwashing detergent to the vinegar solution.

Ready-made purchased chemicals. The advantage of such products is that you take and use. No need to mix anything and look for a spray bottle. To remove traces of dirt, the solution is sprayed on the window, after which it is immediately wiped dry. The following glass cleaning products are on the market:

"Help";
"Mister Muscle";
"Wedge";
"Second".

Washing frames

After the construction dirt has been removed with soapy water, the glass has been cleaned and the protective film has been removed from the frame, it's time to start cleaning the window frame. For this purpose in 3 liters warm water dissolve 1 tbsp. dishwashing liquid and a grated third of a piece solid soap... When the solution has acquired a homogeneous consistency, moisten a soft cloth in it and begin to wash the window frame. If you do not want to prepare the mixture yourself, you can use the following ready-made compositions:

Domestos;
"Sanita";
M. Proper ".

In addition to traditional products, other products have proven to be effective in cleaning plastic frames. Among them can be noted a solution of ammonia (25 ml per liter of warm water). It is good to use it after products that sometimes leave streaks on the glass. A 9% solution of table acetic acid, kerosene and even nail polish remover allow you to conveniently clean stubborn paint stains from a plastic profile.

Washing window sills

To clean plastic windowsills after renovation, you will need a double-sided sponge, hard on one side and soft on the other, or a rag. An excellent option in this case is also a melamine sponge, which is made from a special resin that demonstrates good abrasive qualities when cleaning.

Dishwashing detergent will work well to remove grease from the windowsill.

A more serious problem is the protective film, which is easily removable when fresh, and over time it firmly adheres to the windowsill. In this case, it is necessary to heat the film with a building hair dryer and carefully pull it over the edge so that it does not break. You can also try sticking tape over the film and tearing it off.

Another serious contamination is dried primer stains, against which solvents and soap solution are powerless. A fresh primer can save the day, which is applied on top of the stain, kept for a couple of minutes and washed off with a rag.

Attempts to wash the plastic window sill from traces cause no less difficulties. liquid nails... If they are water-based, then you can try to heat the contamination with a building hairdryer and gently work with a spatula or sponge.

Restoration of a plastic window sill after an ingrained lime wash is carried out aqueous solution vinegar or salt, after which the remains should be removed with a clean cloth.

To achieve a good result and flawlessly wash window frames and glass from the remnants of construction debris, certain rules and precautions should be followed:

Use non-crumbling soft cloths to clean windows. Otherwise, the microvilli will stick to the glass, making cleaning difficult. Flannel or cotton fabrics, paper and microfiber napkins are best suited for such purposes.
When using cleaning chemicalswhich contain alcohol, wear gloves. Otherwise, damage your hands. In some cases, you need to wear a protective mask, so as not to inhale corrosive fumes.
Some cleaning products contain coarsely abrasive particles. If you rub them intensively into glass, windowsill and frames, there is a risk of scratching the latter. Therefore, you need to use such substances carefully.
You need to wash the windows in the correct sequence: first of all, the outer part, which "looks" into the yard, then - the window sill, mechanisms, frame. It is best to carry out this procedure after the completion of the repair in the evening or in the early morning, when the sun's rays do not fall on the window.
Upon completion of the procedure, you should vacuum the windows and the room itself, removing the accumulated particles of soil, cement and construction dust.

To achieve the best result, you should strictly adhere to the above rules and recommendations on how to clean windows after renovation in a new building.

During renovations in a new building or during the installation of windows, it is very difficult to keep frames and glass clean. And it is also more difficult to wash them from construction dirt than from ordinary household ones. But there are cleaning agents for each type of dirt. Want to know which ones? I'll tell you about this.

Film and tape marks

All manufacturers recommend shooting protective filmglued to plastic windows after installation. But this is not always done on time. And when repairing, frames are often pasted over with tape or mounting tape to protect them from dirt.

Over time, these films firmly "stick" to the surface, and it becomes problematic to clean the plastic from the glue.

The first remedy you can try to do this is hot water and the hard side of a dish sponge. Before cleaning the plastic on the windows with any other preparation, try this option.

In case of failure, the following will come to your aid:

Picture	Name of funds
	Undiluted rubbing alcoholas well as vodka or cologne.
	Nail polish remover... Better one that does not contain acetone.
	Tea tree oil.

Stains from adhesive tape, as well as from stickers on glass, are impregnated with any of these liquids, and then scraped off with a plastic spatula.

Cement

When plastering and leveling walls, protect plastic frames and double-glazed windows from splashing solution is quite difficult. As well as to clean them from the hardened cement. Try one of the following methods.

Method 1 - special means

If you need to get the result quickly, and the price of the product does not really matter, buy special preparations designed for cleaning different surfaces from cement. For example:

ATLAS SZOP;
Cement N Concrete Remover;
Baugerätereiniger 81.

All of them are available in the form of a spray that is sprayed onto a contaminated surface. After the specified time has elapsed, the dissolved or softened solution is wiped off with a cloth.

The main thing is that the product does not contain corrosive acids.that could damage the plastic. Therefore, the instructions for use are required to read before purchasing.

Method 2 - Comets

Another effective tool for cleaning windows from mortars is considered a thick gel Comet for plumbing.

You can clean plastic windows with it like this:

Apply gel to dirt... If it is a vertical surface, then it will have to be applied several times.
Wait until the cement becomes loose and soft.
Remove it with a damp cloth.
Repeat if necessary.

But before you clean the windows after repairs from dirt and mortar, vacuum or sweep them with a brush to remove poorly adhered pieces and avoid unnecessary work.

Method 3 - acetic acid

If you do not have the means described above and you have nothing to clean the plastic windows, use vinegar essence, only slightly diluting it with water.

The procedure for washing windows with vinegar:

Think about protective equipment - put on rubber gloves and a gauze bandage.
Dilute the acid with a little water.
Soak a rag in the solution and moisten all stains liberally with it..
After a few minutes try to wipe them off. do it yourself.
If the result is not good, sprinkle baking soda on a cloth with a solution to get it wet, and rub the stained areas.

In the same way, you can wash and liquid glass... But you should try to clean the frames and glass from it immediately, using just hot water. Otherwise, it will react with the surface and it will be very difficult to get rid of the stains.

Polyurethane foam

To seal the window, foam is blown into the space between the frame and the opening. Increasing in volume, it often stains plastic.

Do not try to wash it off with water, even fresh - it is useless. And all kinds of solvents or means with which they are washed assembly guncan corrode plastic. How to be?

Fresh footprints it is easiest to remove from polyurethane foam with Cosmofen. It is this cleaner that is used by installers of plastic windows. It comes in three types (see photo). The higher the number, the weaker the remedy.

Dried foam will not take any detergent, and Cosmophen may not help. In this case, Dimexide will solve the problem. This medication is a good solvent, so you need to work with it with gloves. The undiluted liquid is applied to the stains with a sponge or cotton swab, and after a few minutes, it is washed off along with the remaining foam with a damp cloth.

Paint

You can not break your head about how to wash the glass - any solvent designed for the type of paint that needs to be removed will do. It is more difficult with plastic, the solvent can damage it:

If the paint is on water based , you can try to clear it with hot waterby soaking the spray and scraping it off with a scraper.
From other types of paint and get rid of the primer with turpentine.

But try not to use knives, blades and metal spatulas - they will scratch the surface. The material of the scraper should be harder than dirt, but softer than the plastic itself.

There is always a polish in a set of products for the care of plastic windows.

Conclusion

Now you know how to clean windows after renovation from various building substances without damaging them. After such cleaning, the glass units are washed in the usual way. You can watch the video in this article on how to properly care for plastic windows.
I could forget about some methods or not know. If you know them, let us know in the comments!