Rehau seal for windows, seal for Rehau windows, types and characteristics of Rehau seals

Why do you need Rehau sealant in plastic windows and doors?

The Rehau seal is one of the main components of plastic windows and runs along the entire perimeter of the window. To guarantee protection from the influence of the external environment, two sealing circuits are used. One contour is on the frame, the other on the window sash.

Our specialists replace Rehau sealing gaskets on plastic windows. The price for installing and replacing the Rehau seal is quite affordable.

Our specialists replace Rehau rubber seals on plastic windows. The price for replacing a Rehau rubber seal is quite affordable.

Rubber-rubber epdm sealant Rehau (Rehau) is produced by:

— Semperit Germany

— Artie (trademark Elementis) Russia, Tambov

— Union Polimer Tehnologies Russia, Moscow region, pos. Sofrino

— Donskoy Profile LLC, Rostov-on-Don

How to independently determine whether you need to change the Rehau seal (Rehau)

You can determine whether the Rehau seal needs replacement yourself. Open the window sash and clean the seal from dirt using a damp cloth. Carefully inspect the seal on the sash and frame. The outer contour usually has more damage. If the seal has become hard, irregularities (tears) have appeared, the color has faded (become uneven) - this plastic window seal must be replaced. Because the outer contour is more susceptible to wear, some window owners, in order to save money, prefer to replace only it, but, in this case, the pressure on the sash is weakened and no one can guarantee that the wind will stop blowing from the window.

Advantages and disadvantages

The advantages of original contours from Rehau include:

• 
  resistance to temperature changes;

• immunity to weather influences;
• UV resistance;
• high reversibility of deformation;
• resistance to thermal aging;
• resistance to weak acids and alkalis, mold;
• long service life;
• wear resistance and elasticity;
• optimal clamping density;
• high-quality sealing of the window structure;
• ease of maintenance due to non-porous surface;
• no unpleasant odor;
• easy installation/disassembly;
• ensures the correct window geometry, thanks to the ability to adapt to the sash.

With such a large list of advantages, Rehau seals have no disadvantages. The only limitation is the manufacturer’s recommendation to use only for Rehau windows.

Types of Rehau seals

Sealant Rehau 952 (rehau) for frames and sashes

EPDM seals from the well-known manufacturer REHAU have proven themselves to be the best in operation. The Rehau seal is marked along its entire length, which indicates its authenticity. The need to install a thicker seal instead of the Rehau seal is decided by the technician on site. The KBE seal is thicker, but this does not mean at all that it will “hold” better. Based on the best intentions, you can install a KBE seal, but the flap may not close!!! Excessive thickness of the seal will interfere. Therefore, based on the size of the groove, the master decides on the spot which seal needs to be installed instead of the worn one.

Sealant Rehau 002 (rehau) for double-glazed windows

Used for a tighter fit of the glass unit to the plastic profile.

Rehau seal for entrance doors

How to distinguish Rehau from a fake

The original outline of Rehau is easy to distinguish from a fake. The manufacturer applies markings with its own logo over the entire surface of the elastic band. Products have been produced in this format since 2015. Therefore, all assurances from unscrupulous sellers about the “old batch” are nothing more than an attempt to mislead the consumer.

Marking is applied in increments from 50 cm to 1 meter. To play it safe, it is better to buy Rehau window seals from a reliable seller.

Characteristics of rubber-rubber epdm seals Rehau (Rehau)

Description of the Rehau sealing gum

REHAU produces seals from different materials. Rubber gaskets also come in several types. Initially, production was based on the technology of rubber vulcanization using sulfur. As a result of this type of vulcanization, an unpleasant odor appears, and the contour leaves marks on the PVC profile. Then it was replaced by vulcanization using the peroxide cross-linking method.

Now, in the production of original rubber products, the company uses about 30% pure synthetic rubber . This composition allows the contour to retain its important properties:

• elasticity of the material when temperature changes in the range from -40°C to +120°C;
• resistance to thermal aging.

Important ! To distinguish the original product from a counterfeit one, the seal along its entire length is marked with the REHAU logo (steps of 50-100 cm). This release format has been established since 2015.

Products are produced in several colors , but the most common option is black. You need to know that the shade does not affect the quality of the contour. They directly depend on the material from which it is made.

Characteristics and properties

The most attractive characteristics of Rehau seals are the ability of products to maintain elasticity over a wide temperature range, good resistance to pressure and mechanical stress.
This seal is almost impossible to damage, and the risk of cracking is reduced to zero.

The products retain heat well and exceed standard indicators for tightness , weather resistance and durability by 6-7 times. In addition, the contour demonstrates good clamping density

List of additional characteristics of Rehau gaskets:

• withstands 250,000 opening/closing cycles;
• ensures absolute tightness of the window structure;
• reliably protects the room from moisture, cold air, and street noise;
• the material does not absorb dirt.

Important ! All of the listed properties are possessed only by original insulation from Rehau.

For which PVC windows is the contour suitable?

Rubber seals from different manufacturers differ from each other. The main differences are observed in the list of main properties of the product and in its form. Therefore, the contour of an individual manufacturer is ideal for a certain profile system , but cannot provide high-quality clamping for another. The tightness of the structure will be compromised. To prevent this from happening, it is recommended to use only original Rehau seals for Rehau windows.

How to choose a seal for plastic windows?

Seals from different window manufacturers can vary greatly in material, shape, thickness, and elasticity. Therefore, it is better to entrust the diagnosis of the condition of the seal, its selection and replacement to an experienced, qualified technician.

You won’t be able to buy a sealing gasket for plastic windows in a regular construction market. Companies that professionally repair windows buy it in bulk, in rolls of 400-500 meters. Each profile manufacturer has its own seal, because The size of the groove for the seal is different for each manufacturer.

Be careful when choosing a seal for your windows, since in this market, as elsewhere, there are original Rehau rubber seals and analogues. Analogs are made similar in shape, but the dimensions do not always match. The composition and quality of such seals leave much to be desired. The seal for plastic windows and doors must comply with GOST 30778-2001.

We will replace Rehau window seals

But, like any element of window construction, it is subject to everyday pressure, heat, exposure to chemical elements, and gradually fails. As a rule, by promptly diagnosing the fittings and checking the condition of the seal, you can get rid of unnecessary problems and heating costs.

❗️Causes of failure requiring intervention:

• the end of the service life of the seal is on average 5-6 years, provided that care recommendations are not followed;
• window fittings are used in winter mode;
• The seal during installation was of poor quality and not original;
• mechanical damage, separation of parts, falling out of the groove.

Solve the problem of

GOST 30778-2001 for seals for windows and doors

GOST 30778-2001 defines the scope of application, introduces the classification and designation of seals. Determines technical requirements for the shape and composition of seals. Establishes acceptance rules and methods of control of finished products. Provides instructions for the operation, transportation and storage of seals.

Here are the most interesting excerpts for us:

3 Classification and designations

3.1 Designations of polymer materials used for the manufacture of seals

TPE - thermoplastic elastomer;

EPDM - ethylene propylene diene rubber (terpolymer of ethylene, propylene and diene with the remaining unsaturated part of the diene in the side chain);

ERM - ethylene-propylene rubber (ethylene-propylene copolymer);

VMQ - silicone rubbers containing methyl and vinyl substituted groups;

CR - chloroprene rubber.

3.4 Seals are divided depending on the types of window, door blocks and other structures for sealing the elements of which they are used:

D - for wooden window and door blocks;

P - for polyvinyl chloride window and door blocks;

A - for window and door blocks made of aluminum alloys;

C - for special (other) designs.

8 Operating instructions

8.2 The surfaces of window and door units in contact with the seals must be clean and free of scratches, sharp edges, nicks, scratches and other mechanical damage.

8.3 Installation of seals must be carried out without distortions, twisting and mechanical damage, without jerking or impact.

8.4 To facilitate installation and reduce friction, seals can be treated with a thin layer of silicone grease.

8.5 The seals are installed in the seat without stretching.

How to install or replace a Rehau seal yourself

Is it possible to install or replace the Rehau window seal yourself? Why not. It is not the Gods who burn the pots... As a result of the work, try not to break the hinges and fittings. Everything is simple only in videos on YouTube. And when it comes down to it, a lot of nuances arise that no one will ever talk about anywhere. Our advice is to trust your windows only to experienced craftsmen who every day encounter and successfully solve certain difficulties that arise when replacing seals in plastic windows!

The Rehau seal in the window is needed to prevent moisture from getting inside the profiles and fittings, and to prevent corrosion, for noise and heat insulation, and to avoid dust.

Any rubber product, even with proper care, loses its original performance characteristics over time. The same thing happens with the Rehau rubber seal for windows. Over time, the Rehau window seal seems to “flatten”, and cracks and tears appear on it. This means that it ceases to perform its function. The window becomes cold and drafts appear. To restore heat, sound insulation, replacing the Rehau window seal (replacing Rehau rubber bands on the windows) becomes simply necessary.

Some craftsmen are trying to solve the problem of “window insulation” on their own. They go to the store and buy self-adhesive insulation. They attach it all over the window and think that the drafts have been defeated!!! However, they do not think at all that this increases the load on the hinges and all fittings, which can lead to serious damage. You absolutely cannot do this!!!

Main features and specifics of elastic bands

There is a common myth that the color of an elastic band is directly related to its quality. White ones are considered the best, gray ones are a little worse, black ones are the most unreliable. In fact, this is not the case; the shade does not affect the quality of the contour. But the manufacturer and the material used in production are important.

Rehau products have proven themselves well, offering modern window seals, which you can buy on the German Windows website at the same time as plastic windows.

The Rehau seal is distinguished by a specific number of features, which are also advantages:

• does not allow air and moisture to pass through;
• does not absorb pollution;
• withstands up to 250,000 opening/closing cycles;
• withstands a temperature range from -50˚С to +100˚С.

Installation and replacement of Rehau seals on windows

In the production of metal-plastic windows, two types of sealing gaskets are used. Rehau (sash) seal is used on frames and sashes. It protects the profile and fittings from moisture and dust, and the room from all unwanted factors. Another type of sealant, Rehau, is used for a tighter fit of the glass unit to the frame.

The Rehau seal is most susceptible to adverse environmental influences. Replacing the Rehau seal on the windows will allow you to return warmth and comfort to your home.

You can extend the service life of the Rehau sealing gasket for plastic windows with regular maintenance. It is recommended to clean the Rehau seal in plastic windows once every six months from dirt, wash it with soapy water and lubricate it with silicone grease.

Replacement and installation of Rehau seals in windows takes place on site. In this process, the old seal is removed, the grooves on the sash and frame are cleaned, into which a new Rehau seal is then installed. When replacing the Rehau seal using the pulling method, the window gasket should fit freely into the groove without effort or tension.

There are two ways to change the Rehau seal on windows:

- with the removal of the window sash

- without removing the window sash

Based on his experience and the specific situation, the master decides on the spot whether it is necessary to remove the sash to replace the Rehau seal. An experienced plastic window repair technician can efficiently replace the Rehau seal without removing the window sash.

Replace it yourself or trust the experts?

Replacing the seal and repairing plastic windows is best left to the professionals!

Although at first glance it seems that the process of replacing such an element is simple and will not cause any difficulties, it is best to trust the professionals in their field. The thing is that in the process, an inexperienced user can accidentally damage the window sash, fittings, and it’s not safe to work with the open sash while standing on the windowsill!

Our company will qualitatively and quickly replace the seal, as well as carry out other necessary repair work.

By contacting us, the consumer receives high quality work, certified materials, and most importantly a 1-year warranty.

Useful tips and recommendations for caring for windows and Rehau seals

— if the slightest malfunction occurs in the operation of a plastic window, it is recommended to call a window repair specialist. It is strictly forbidden to use excessive physical force to open (close) a plastic window!

— after repair and restoration work, it is recommended to carry out servicing of the plastic window twice a year (cleaning off dirt and lubricating fittings and seals).

Based on our many years of experience, we recommend to our clients:

- Roto fittings. Due to its quality, Roto fittings have long been well established in the window market. Fine-tuning the window pressure ensures there is no backlash and increases the service life of all mechanisms.

— seals for windows with the highest performance characteristics: REHAU 952 and KBE 228. They comply with GOST 30778-2001 and will last more than 15 years.

The best specialists for you:

Yuri surveyor, 2 years of experience

Sergey master, 10 years experience

Oleg expert, 6 years experience

Andrey specialist, 3 years experience

Vadim engineer, 5 years experience

Free consultation:

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Call a specialist

An example of an incorrectly selected window seal

The plastic window whistles. What to do?

Let's give a specific example of how the window seal was chosen incorrectly. The owner of an apartment located on Vasilievsky Island (new building, frequent strong winds due to the proximity of the Gulf of Finland) contacted us. The main complaint was that the windows whistle in high winds. Typically, windows whistle when the seal is poorly worn and due to broken internal joint sealing seams.

The owner of the apartment said that some “master” replaced the seal a little over a year ago. Our technician arrived and saw the new seal that was installed there. A little research, and now we see the label from the box of this seal. Please note, this is a groove seal for wooden windows!!! However, the “master” installed it in a plastic window!!! After standing for some time (about a year), this seal became unusable and the windows whistled. Of course, this seal was replaced with the classic rubber-rubber KBE 228, which will last for more than 15 years. Also, our master restored the internal joining seam. The windows stopped whistling, the apartment became warm and quiet.

We repeat once again: Be careful when choosing a seal for your windows! Don't believe the stories about "miracle seals"! There is nothing better than time-tested rubber seals from rehau, kbe and veka.

Frequently asked questions about Rehau sealant (Rehau)

We have collected here the most popular questions about the Rehau seal; we recommend that you read the answers.

Question No. 1

Rehau sealant for windows

Is it possible to replace the Rehau seal in windows?

Answer:

Yes, you can replace the Rehau seal in windows. Call and get a specialist to replace Rehau seals in windows in St. Petersburg (St. Petersburg) and the Leningrad Region inexpensively and with high quality.

Question No. 2

How much does it cost to replace a Rehau seal in windows in St. Petersburg (St. Petersburg) and the Leningrad Region?

Maybe it’s easier and cheaper to install a new window than to replace the Rehau seal in the windows?

Answer:

The cost of replacing the Rehau seal in windows starts from 100 rubles per linear meter. Installing a new window is no easier or cheaper than replacing the Rehau seal in the windows.

Question #3

What materials and tools do you use to replace the Rehau seal in windows in St. Petersburg (St. Petersburg) and the Leningrad Region?

Do you have the materials and tools to replace the Rehau seal in my window?

Answer:

In order to replace Rehau seals in windows, we use only original materials and professional tools. Yes, we have the materials and tools for your window and we can replace the Rehau seal in the window.

Question #4

Do you provide a guarantee for replacing the Rehau seal in a window in St. Petersburg (St. Petersburg)?

What is your guarantee for work on replacing Rehau seals in windows?

Answer:

Yes, we guarantee our work. Work to replace the Rehau seal in windows is guaranteed for one year.

Question #5

Why did it start blowing even more from the windows after replacing the Rehau seal?

After replacing the Rehau seal, it started blowing even more from the windows, why?

Answer:

Possible answer options: - crooked hands of the master - the “new” seal was incorrectly selected - the “new” seal was installed incorrectly - the fittings of a plastic window or door were not adjusted - a crooked (low-quality) profile - the seal was incorrectly selected for such a profile - there are not enough clamping locks , lock strikers It is worth entrusting this work to professionals so that
the installation or replacement of Rehau seals in windows is done efficiently and without any “surprises”.

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