How to replace rubber bands on plastic windows yourself. Replacing seals on plastic windows - all the nuances for independent work

Seal on plastic windows serves for many years. Does it need care? What should I lubricate it with? And is it necessary to change the seal on plastic windows at all? Where can I buy it and how much does it cost? Read more about this.

Why change the seal on plastic windows?

First, let's talk about how people come up with the idea of ​​replacing the window seal.

First. It starts to blow somewhere. A person turns to the Internet and oh my God, he finds a solution - change the seal.

Second. Clients call a plastic window repair specialist, and he, instead of the simplest one, begins to replace fittings and seals.

Third. Recently, many small window repair companies have sprung up, whose managers call people and offer their services. Moreover, calling a specialist is free. As a result, we get the following. The technician, having examined the windows, comes to the conclusion that the seal needs to be replaced, motivating this replacement by the fact that the new seal is better than the old one.

So, I believe that replacing the seal on plastic windows should be done in extreme cases. As a rule, problems with blowing are solved by other actions. Well, that's up to the client. If it goes comprehensive renovation windows with replacement of double-glazed windows and fittings, with adjustment, with replacement assembly seam, with the alteration of the slopes, then it makes sense to replace the seal.

Caring for seals on plastic windows

What in general can happen to the seal over time?

It can dry out, shrink and take on a flattened shape. All this happens because improper care or more precisely due to the lack of care for the seal on plastic windows. Therefore, it is customary to lubricate the seal twice a year with either silicone grease or a grease stick from a special kit for caring for plastic windows. By the way, it also includes lubricant for hardware and white milk for rubbing out scratches.

Silicone lubricant is sold in automotive stores, and a care kit can be purchased in the same place where components for plastic windows are available. More details

Replacing the seal on plastic windows

If you still decide to replace the seal, this can be done in two ways:

• On one's own
• By using

At self-replacement you need to know some important points.

The seal changes both on the sash and on the frame. For convenience, it is better to remove the sash by removing the pin from the top hinge. But you don’t have to take it off. When removing the old seal, remember how it stood.

When inserting a new seal, you need to make sure that it is not stretched, but rather is slightly compressed. This point is especially important in the corners.

Also, in the corners, it is better to glue the sealant to the plastic with super glue. The ends of the seal are also glued together. The new seal should not be lubricated. It's already lubricated.

On the sash, in order to insert the seal under the top hinge, this hinge must be removed.

How much does a sealant for plastic windows cost and where can I buy it?

It is known that there are several types of seals. They differ in shape depending on PVC profile. Therefore, before looking for the right seal, you need to know the name of the profile of your window. It must be said that there are universal seals that fit most popular profiles.

The seal also differs in color. As a rule it is black. But, in Lately gain popularity grey colour. But, it is more expensive.

Where to buy sealant for plastic windows? The easiest way to purchase is to contact the same company where the windows were purchased or any window company. But, in window companies The seal will be more expensive than in online stores, but they will cut off as many meters as you need.

Therefore, you can search on the Internet. Here are a few stores:

• inookno.ru

The cost of sealant for plastic windows is approximately 20 rubles per meter. And lastly, a video, really not very good good quality. But the man in this video knows what he's talking about. See for yourself.

Reading time ≈ 3 minutes

Plastic windows are recognized as the most economical and reliable in terms of heat retention. Special sealing gaskets located around the perimeter of the window frame help ensure the safety of heat in the house. Timely replacement of the seal on plastic windows guarantees the absence of drafts and a decrease in the temperature in the room. The process of performing this work is quite simple, but it requires mandatory adherence to the sequence of installation operations, as well as care and accuracy.

Work order

The first thing to do is to examine the technical condition of the seal in the window. It is a harness of a certain relief cross-section, made of the most durable, heat-resistant materials.

Initially, the seal has fairly high performance indicators. For example, a rubber seal made in Germany will not require replacement and will perform its job properly. functional purpose for 8 years. A Russian-made seal has a slightly shorter service life.

Even the slightest cracks on its surface, especially holes, damage, places of poor quality connection with the surface of the window frame, indicate the need to repair plastic windows and replace the seal as soon as possible.

Having picked up required type seal to your window profile, you can begin installing it. They are divided into two groups: window frame and along the window sash itself. A high-quality replacement of the seal involves replacing both types at the same time.

You can familiarize yourself in detail with the process of replacing the seal on plastic windows if you look at the photo of the repair work.

1. Start installation work need to be removed first window sash from your place. This is not difficult to do: close the window tightly with the handle, remove the outer trim from the top canopy, knock out the core and remove the frame. Now the window remains attached only to the lower canopy, from which it can be easily removed by just lifting it slightly.

2. Lay the window sash on the floor (or sofa) and remove the damaged rubber seal from its place. It is enough to pick up the edge and it comes out freely. In the area of ​​the top hinge, you need to slightly raise the fastener, since in this place the fastener serves as a clamp for the seal. Actually, this is why it was necessary to remove the window.

3. Clean or wipe the freed holes from dust and all kinds of contaminants.

4. We place a new seal in the window groove in the same way as the previous one along the entire perimeter of the window frame. Do not tighten the rubber seal, because As a result of temperature fluctuations, the rubber is compressed/stretched, which can lead to rupture of the solid seal bundle.

Now you need to replace the seal on the window frame. The work plan is the same:

• remove worn material;
• cleans the area from dirt;
• insert the harness of the new seal into the prepared place.

We will send the material to you by e-mail

If plastic windows begin to show through after several years of high-quality use, then the reason may be the wear of the seal. Therefore, different accessories and sealing rubber bands require special attention and care. Often, to eliminate the penetration of moisture and cold, it is necessary to replace the seal for. So, let's look at what types of seals there are and how to replace it so as not to disrupt the normal air circulation in the room.

Sealing materials are available in various configurations

Double-glazed windows are a sealed and energy-efficient element functional arrangement premises. A special sealing rubber is used where the sashes meet the frame. This element protects the room from dust, noise and cold air entering from the street.

Elastic bands for plastic windows look like cords made of elastic materials. When deformed, such material is compressed. When the thickness of the cord changes, the tightness of the sashes decreases.

Window seals perform the following functions:

• protect from noise coming from outside;
• prevent dust from getting inside. Installing gaskets will improve the overall level of cleanliness in the rooms;
• promotes high-quality thermal insulation. Seals allow you to retain heat and even reduce heating costs;
• provide protection from moisture. Rubber material does not allow water to pass through;
• comfortable operating conditions window designs and increasing service life.

For your information! Even windows with built-in gaskets will need replacement after some time. It is recommended to reinstall after 5–6 years of operation.

When is it necessary to replace the seal in a plastic window?

Now let's figure out how to find out that the seal on plastic windows needs to be replaced. In fact, it is not always necessary to carry out repairs after 5–7 years of service life of rubber gaskets. At proper care heat-insulating gaskets can last more than 10 years.

The need for replacement can be determined by the following signs:

• the appearance of microcracks on the surface of the seal;
• thinning of the elastic and flattening;
• drafts in the room;
• the occurrence of street noise;
• condensation on the profile;
• freezing of windows around the perimeter of the sashes.

Reasons for replacing seals

Sealing rubber bands can deteriorate under the influence of certain external factors: dust, dirt, humidity and direct sunlight. Without proper care, the material gradually loses its elasticity and can disintegrate and crumble. Because of this, the window begins to let in dust, see through and become dirty. The cause of problems with the seal may also be due to incorrect adjustment of the sash pressure.

How to check the closing tightness

Now let's find out how to check the tightness of the shutters. Most often, a thermal imager is used for these purposes, which allows you to find cold places.

The following methods will also help:

• light a match or candle near the window. If the light begins to fluctuate, this indicates a violation of the tightness;
• open the window and put a sheet of paper. Close the flap and remove the tab. With a dense structure this cannot be done;
• with very poor sealing, a draft will be felt even with your hand leaning against it.

Types of seals by material, advantages and disadvantages

Let's consider different variants seals for and for plastic.

Silicone seals for windows

Expensive options include silicone products. The material is made from silicone rubber with the addition of metal. It is characterized by resistance to temperature changes. It is also worth noting the following advantages:

• soft structure that does not lose its properties due to temperature changes;
• resistance to humidity and aggressive chemical environments;
• long service life;
• there is no danger of ozone radiation.

There are also certain disadvantages:

• significant cost;
• susceptibility to mechanical stress.

Rubber

There are also synthetic or ethylene-propylene types of rubber. The material is durable and reliable.

Rubber seals have the following advantages:

• increased resistance to temperature changes;
• high level of strength to mechanical deformation;
• long service life;
• not sensitive to influence sun rays.

It is worth noting the disadvantages:

• a gasket with a sulfur additive may emit an unpleasant odor;
• The material is attached only with glue.

Rubber

Rubber gaskets are made from vulcanized rubber. Here are the advantages of the material:

• a budget option;
• increased level of tightness.

Minuses:

• may lose performance when temperature changes, dry out or crack;
• deteriorate due to mechanical stress.

For your information! When choosing a material, you should choose products from Turkish or Finnish companies.

Thermoplastic

Gaskets made from this material are often already present in finished double-glazed windows. Thermoplastic gaskets have excellent springiness. The material contains polyethylene and rubber. It is worth highlighting some advantages of this option:

• the material is welded, not just glued;
• increased springiness;
• not flammable;
• safe for health.

Disadvantages of the material:

• becomes unusable under constant mechanical stress;
• does not have high elasticity.

Polyurethane

If depressurization occurs, you can change the seal to polyurethane. This option is suitable for aluminum or other double-glazed windows. The seal will increase the degree of sound insulation.

Among the advantages it is worth noting:

• reinforced adhesive layer;
• low cost;
• good sound insulation;
• preservation of the surface during dismantling.

Sealant for PVC windows

This material is made from a modified polymer. The sealant has a low cost.

Advantages:

• can be welded during installation;
• resistance to fire;
• environmental Safety;
• variety of shades;
• increased level of springiness.

Minuses:

• dependence on ambient temperature;
• at low temperatures loses elasticity;
• deforms under regular mechanical loads.

EPDM and TPE seals

EPDM or ethylene propylene rubber is a material High Quality. One of the main advantages of this material– resistance to ozone influence. With proper care, such material can last more than 15 years.

EPDM Made from ethylene propylene diene material. This is a soft gasket with a pipe profile. The seal is placed between the sash and the frame.

TPE (thermoplastic elastomer) retains all characteristics in any weather conditions. The material transfers well subzero temperatures and fits tightly to the profile. The gasket is not subject to deformation under loads.

Types of seals by type of installation

Sealing gaskets are also classified depending on the installation option. The following varieties are worth noting:

• self-adhesive window seal is equipped with an adhesive layer, which allows you to install the product yourself;
• sealants mounted on glue do not have a finished layer;
• grooved ones are used for wooden windows and are used to increase operating characteristics.

When choosing self-adhesive products, you need to pay attention to the expiration date. Since expired materials quickly peel off from surfaces.

Marking of polymer, rubber and silicone seals for plastic windows

There are three main types of markings:

• KBE – the teeth come in a modified (presence of a stiffener) and unmodified design;
• Rehau distinguished by single teeth of a slightly curved shape;
• Veka – the tooth is located at right angles to the base.

Replacing the seal in a plastic window with your own hands

The procedure for replacing seals on plastic windows with your own hands consists of two stages: preparation and installation work.Before installation, you need to prepare the place. First you need to remove the sash. To do this, the protective covers are removed from the hinges, and the pin is knocked out from the top canopy.

Preparatory work includes:

• dismantling the old gasket using a narrow spatula;
• the surface is cleaned of dirt, dust and remnants of old material.

Installation depends on the types of rubber bands fastened. You can see how the installation is done correctly in the table.

Photo	Description of work
	To replace the sealing gasket, you will need a sealant, instant adhesive, which should be gel-based. You also need to prepare a rag, an ear stick, stationery knife, scissors and wire cutters.
	First you need to remove the old seal. It is recommended to pull the tape out from the corner area.
	After this, the entire seal can be easily removed.
	Then you need to remove the rubber gasket from under the loop. To do this, the sash should be opened at an angle. You need to open it 10 mm and pull the bottom edge.
	Remaining material can be removed with a knife. You need to walk along the contour with a rag to clean the surface. Dirt in the groove can be removed with an ear stick.
	One end of the new seal should be inserted between the sash and the hinge.
	We stretch the piece to the middle of the sash.
	The sealing material must be pressed down. In this case, the lock must be placed in the groove.
	We stretch the seal around the entire perimeter. The rubber needs to be glued at the joint.
	The ends should be aligned to form a right angle. The excess needs to be cut off.
	Glue is distributed onto the two ends of the tape, but not onto the blades, but onto the lock area.
	The ends are inserted into the groove and pulled together. The elements need to be pressed for a few seconds.

There are different options for replacing the sealing material. If you don’t know how to change the seal on plastic windows, then some methods can be seen in the video below:

Installing and replacing seals in wooden windows

For windows in wooden frames The following sealing options are used:

• silicone gasket is an elastic material that is used in Food Industry and for medical purposes. This material comes in two types. Liquid silicone is distributed over the surface using a special gun. Rubber silicone is made in the form of flat strips;
• self-adhesive sealant is a tape of various configurations.

When choosing a material, do not choose gaskets large thickness, since windows or doors may not close.

The most popular manufacturers of rubber seals

Various manufacturers offer seals for plastic windows. The price also depends on this factor.

Rehau

One of the first manufacturers of gaskets ok became a company Rehau . It offers products made from thermoplastic elastomer and ethylene propylene rubber.

Products from this manufacturer have the following advantages:

• can be used over a wide range of temperatures;
• tight pressure along the entire perimeter of the glass unit;
• resistance to mechanical stress, ultraviolet radiation and high humidity;
• the material can last for many years.

The cost of products depends on the specific configuration and material of manufacture.

Veka

The products of the German manufacturer are popular I Veka , existing on the market for more than forty years. The company offers sealing material for st. wood also for the window narthex.

It is worth highlighting the following advantages of the product:

• resistance to deformation and durability;
• moisture resistance, severe frosts and temperature fluctuations;
• increased level of sound insulation and thermal insulation.

KBE

This company produces double-glazed windows and accessories for them. The advantage of the product is that the gaskets fit tightly into the groove. The product must be rolled in using a special tool.The products are made from high quality rubber. Seals are ideal for improving the performance of windows made from different materials.

Russian manufacturers

You can purchase more budget options from domestic producers. Suitable good quality products are offered by companies such as "Standard Prof" And "Obninskgazpolymer" .

Important! When choosing such products, it is worth considering that seals from Russian companies may not be suitable for foreign-made double-glazed windows.

If you have double glazing from famous manufacturer, then you shouldn’t save, but it’s better to purchase accessories for plastic windows from the same company.

Seal gasket care - basic rules

Regardless of the choice of gasket option, certain maintenance is recommended to improve service life. Here's what to do:

• flushing. Sealing products should be wiped with a sponge or cloth soaked in LOC or Edelweiss. Silicone seals require cleaning much less frequently than other options;
• lubricant. It is recommended to use solutions containing silicone. Vaseline or any oil is not suitable for lubrication;
• removing dirt. It is necessary to clean dirt from under the seals. This can only be done soft object, since using a screwdriver or knife will reduce service life.

To care for fittings and gaskets, special sprays are required.

For your information! Cleaning should be done no more than twice a year. You can also take advantage of cleaning offers from various specialized companies.

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Plastic windows have replaced classic wooden ones, displacing them due to a number of advantages. Thanks to them, homes have become warmer in winter and cooler in summer, street noise does not disturb the atmosphere home comfort, and the boys playing football in the yard no longer cause concern to the housewives. The rubber seal for plastic windows plays a big role in ensuring their functioning at the proper level. If you want to extend the life of your windows, then you should pay special attention to operation and timely replacement; this is small, but extremely important detail plastic profile.

What is a seal?

This is a layer of special material, which runs along the perimeter in specially designated recesses. Outwardly it resembles a cord in the shape of a parallelepiped with special protrusions for fastening. Made from rubber polymer material or polyethylene. Each type has its own advantages and disadvantages, however, the rubber seal for windows is considered the most universal; it is ideal due to its resistance to temperature changes, high level sealing and durability.

Exploitation

With proper care, the rubber seal can last up to 10 years. Achieving this is not at all difficult - you just need to follow simple care rules

• Clean the entire profile inside and out at least 2 times a year: before and after cold weather;
• Carefully remove dirt accumulated during bad weather using a sponge, soft fabric or an ordinary rag;
• After cleaning, a lubricant for rubber seals, or, in its absence, glycerin, would be appropriate as a lubricant.

Do not use greasy detergents when caring for the profile - they can damage the harness;
Do not clean in bad weather - there is a high probability of moisture getting in and the subsequent development of fungus, dampness and pathogenic bacteria;
Carry out repairs and other work that involves a large number of dust, when closed windows to avoid contamination of the profile from the inside.

Lubricants for rubber seals

Only silicone lubricant is used for rubber seals. Applied immediately after washing the profile, it significantly increases the moisture-repellent properties of the window and protects its elements from corrosion. The principle of its operation is to create a thin layer of silicone, which completely covers the surface with inextricable molecules and makes it more slippery, as a result of which the impact of the external environment is significantly reduced.

It is prohibited to use VD 40 grease to lubricate rubber seals.

It also helps maintain the elasticity of the seal and prevent mechanical damage and freezing at low temperatures. Prices for silicone lubricants are not high: from $3 per bottle. Agree, not so large sum to extend the service life of the window by 10 years. And given the universal nature of the lubricant, you can use it for your other mechanisms: doors, bicycles, car parts, household appliances. The most common manufacturers on the market are SILICOT, LIQUI MOLY, CAR-REP, XADO.

How to improve the effectiveness of the seal?

You already have a high-quality seal - a self-adhesive rubber band will perfectly help it in the fight for heat! They are very versatile (can be glued not only to windows, but also to doors, wall corners), last a long time, and do not allow moisture and foreign odors to pass through. As a rule, they are mounted on top of the frame at its joints with walls or. When installing, follow this algorithm: clean the surface from dust, degrease it with alcohol or acetone; cut the seal to the required length; delete protective layer, press the cord tightly to the surface and leave it for 2 hours.

How to replace the rubber seal?

Alas, perpetual motion was invented only in the works of philosophers and science fiction novels. And an eternal seal is even more unrealistic. Sooner or later you will still have to change it. This will be indicated by the following “symptoms”:

• More frequent drafts;
• Dampness on window sills and walls adjacent to the window;
• The appearance of mold and mildew on the rubber parts of the window;
• The seal appears swollen, dry and flaking;
• In winter, ice forms on the frame or interior parts of the window.

Such signs indicate that the part has expired and that it simply cannot withstand the loads placed on it. In this case, replacement is necessary rubber seal. How to do it?

1. Buy a new seal. If you have a profile from a well-known company (VEKA, REHAU, KBE), choosing one in accordance with the design will not be difficult. However, when using third-party profiles, you should either consult a specialist or try to find an analogue. So, KBE seals are suitable for Virtage, Novotex, Proplex, and REHAU for Montblanc and Brusbox;
2. Get rid of the old tourniquet. Using scissors, pry up its edge and carefully pull it out of the grooves. Carefully clean the vacated recesses so that the new cord fits snugly into them;
3. Apply glue evenly to the corners of the frame;
4. Insert the cord into the grooves and run along the entire frame without cutting;
5. Remove any unnecessary residue with scissors;
6. Seal the junction of the ends of the seal.

Don’t be afraid of the myths that seals are sold only in huge kilometer-long rolls. You can also purchase it at retail.

You should not buy a tourniquet that is wider than the original one. This will only make it swell and crack faster. For additional protection In places with the potential for cracks to form, it is better to use the self-adhesive sealant described earlier.

Replacing the seal on plastic windows is a very simple matter and every owner can do it. But before proceeding directly to installation, you need to select the seal itself, and after installation it must be periodically maintained. If you do this correctly, your seal will not need to be replaced for a long time.

What is a seal?

The seal is an elastic rubber tube that runs around the entire perimeter window profile. It serves to better fit the sash to the profile and prevent cold air from penetrating into the room. When the seal is deformed, the heat-shielding properties of the window are reduced and condensation may appear on the glass.

The seal can be of three types: EPDM, TPE and VMQ. These markings are used to internationally designate seal material.

How do you understand that the seal (rubber band) on the windows needs to be replaced?

Seals need to be changed at least once every 5-7 years.

You can find out that they need replacement by the following signs:

1) Clear damage is visible.

2) Drafts appeared in the apartment.

3) Street noise has become much more noticeable.

4) The appearance of condensation on the glass.

5) The joints between the window and the window opening began to freeze.

How to choose a seal?

As already mentioned, window seals can be of three types: EPDM, TPE and VMQ. TPE sealant is not resistant to severe frosts, and VMQ is too expensive, so sealant labeled EPDM is most often used. It is resistant to strong temperature changes, retains elasticity after long-term use, and is not affected by most types of alkalis and acids.

In order to speed up the process of replacing the window seal, many people purchase a product with an adhesive side. According to the principle of its action, such a seal resembles ordinary adhesive tape. It is used only for additional sealing of the seam between the window opening and the profile and is not suitable for sealing the sash.

The standard seal consists only of rubber and is shaped exactly like the grooves (recesses for the seal around the perimeter of the profile).

In order to choose a high-quality seal, you must adhere to the following rules:

Choose a sealant brand that is recommended by the window manufacturers themselves.

Buy the product in large construction stores, not in markets.

Before purchasing, check the seal for elasticity.

A high-quality seal should be soft, bend at any angle and not lose its shape.

Replacing the seal on plastic windows: stages

To remove the old seal, just grab it in the middle and pull. The seal is most often inserted into the groove without glue, so removing it will not be difficult.

2) Surface treatment.

The entire profile, and especially the groove, is washed with soapy water and then wiped with alcohol or any other degreasing liquid. This is necessary in order to completely remove all possible contaminants.

3) Gluing the corners.

If you are using a seal with an adhesive strip, this step is not necessary. In the case of a conventional seal, this measure is necessary for strong attachment to the profile.

Construction, PVA or silicone glue is applied to the corners of the profile, while it dries you can start preparing the seal itself.

4) Measuring the seal.

If you are using sealant marked TPE and VMQ, you will have to make several cuts for each side of the profile.

The EPDM seal can be bent at the corners of the profile without fear of it losing its properties, so you only need one strip for the entire perimeter.

In order to measure the required length of the seal, simply attach it to the groove and cut off the excess.

5) Installation of the seal itself.

Then the seal is inserted into the grooves. This can be done by hand, but much faster if you use special tools.

At this stage, the replacement of the seal (elastic band) in the plastic windows is completed, now it will last at least another 5 years.

How to care for the seal?

Improper care and operation reduce the service life of the seal and the window itself several times. In order to avoid this, you need to adhere to the following recommendations:

1) Wash the profile and seal periodically with a non-abrasive detergent(no hard particles).

2) Avoid contact with alcohol, paint and varnish materials, acids and alkalis on the seal.

3) Monitor the humidity in the room and near the window, and prevent freezing.

4) Periodically treat the sealant protective equipment(you can read more about this in the article).

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