Sealants are used to seal joints during the assembly of various plumbing systems. PVC pipes also fully fit into this rule. Quite often, silicone or acrylic sealants are used to perform work such as sealing sewer lines.
The main advantages of acrylic sealants quite rightly include:
- Suitable for a wide range of materials (concrete, brick, wood).
- Adapted for processing structures during operation of which a low or medium level of mobility is expected.
We cannot ignore the fact that silicone sealant has the following significant advantages:
- High reliability indicators.
- The product can be used for any materials, such as enamel, wood (silicone also acts as a stain on them), plastic.
How to seal sewer pipes with epoxy resin?
Resin based adhesive Sikadur-31 CF
Another popular product suitable for solving sealing problems is epoxy resin. The main advantages of this composition are high efficiency with maximum ease of use and low cost.
The entire process of using the mixture in question comes down to its preparation (mixing the resin with a warm or cold hardener) and filling the cavity between the parts of the product with it.
How to work with EAF (20, 40) – hardens quickly, can be stored for a month. Different proportions - experiment, see video:
How to seal the connection between a cast iron sewer pipe and a plastic one?
Since cast iron pipes have lost their popularity to PVC products, at this stage of technology development there is increasingly a need to assemble combined cast iron and plastic pipes.
In the context of the situation considered, a completely reasonable question arises: how to make the joints of parts made of different materials airtight?
The work in question should be carried out within the framework of the following scheme:
This is what it looks like
- You should start by purchasing the necessary spare parts, in this case We are talking about adapters. To achieve optimal results, it is recommended to use products made from polymers or rubber.
- Traces of corrosion must be carefully removed from the surface of the cast iron pipe; the presence of other contaminants is also unacceptable.
- After degreasing and cleaning the bell, silicone must be applied to its surface.
- After the sealant has dried, the adapter is also carefully processed (cleaned and coated with silicone) and fixed in relation to the cast iron pipe.
What is sealing tape and how to use it?
A material such as sealing tape has many positive features, the main ones of which are quite rightly considered:
FUM - plastic, but not shock-resistant
- High efficiency of material use.
- Dielectric and anti-corrosion properties.
- Maximum ease of use.
The only significant drawback of the material in question is its low resistance to physical and UV exposure, the latter is easily neutralized by applying a protective layer.
The tape is used as follows:
- Cleaning the surface to be treated. It is extremely important that it is not wet.
- A tape is wound in a spiral onto the cleaned and dried (if necessary) part. It is extremely important to remember that wrinkles (even minor ones) are ultimately considered unacceptable. An important condition is the maximum belt tension.
- The overlap of one layer of material on another should be at least 50%.
Humor for relief: called? - Vasilich timidly clarified, shifting from foot to foot in the center of the circle with a five-pointed star.
Which material is best for sealing joints?
The vast majority of specialists who install water supply and sewer systems agree that they are best suited for processing joints. silicone sealants, which have already been discussed above.
Usage example
Speaking in simple language, such a sealant is a universal gasket that can easily take on the required diameter, volume, shape, and can also easily cope with without compromising its own operational parameters.
Currently, there are varieties of silicone on the market that can withstand temperatures of 260 degrees for a long time.
As a rule, the need to use other sealing agents arises when the use of silicone is not possible, for example, when it is necessary to seal without dismantling.
Is it possible to properly seal plastic pipes with your own hands?
The answer to this question is simple and unambiguous: yes, even an inexperienced master can solve the problem in question.
Most of the materials used in the format of the situation under consideration (silicone, epoxy resin, sulfur, hemp rope) are inexpensive and easy to use. Even if something goes wrong, throwing away some of the silicone and squeezing new material out of the tube will not be difficult. In the same way, the problem is solved with other specified materials.
The compaction and sealing process itself is also not complicated, even regardless of whether interior work(in an apartment) or . 
At the same time, it is worth taking into account that despite the apparent and actual simplicity of the process, it is impossible to treat it negligently, otherwise the result will be unsatisfactory. A significant feature of the process under consideration is that its full implementation does not require the presence of any complex or expensive process. All a craftsman may need is a rag for cleaning the parts being processed and a silicone gun.
Provided that the master paid sufficient attention to the implementation of the process in question and performed the work conscientiously, and also used high-quality materials, the result will be no less durable than the pipes themselves, the service life of which is most often at least half a century.
Connection diagram
As a rule, the entire sealing process comes down to placing a seal in one or another state of aggregation into the cavity between the parts, followed by installation. All that is required from the contractor is the correct choice of sealant, taking into account the individual specifics of the intended operation (temperature conditions, pressure, location of the structure on the premises or outdoors, the correct choice of acidity of the product used) and its correct use.
In 99 cases out of 100, solving such a problem does not cause any difficulties even for those craftsmen who have no experience in performing similar works with your own hands.
Dismantling a cast iron sewer and switching to plastic, video 6 min 49 sec:
Only if the installation of the sewer system is done reliably and efficiently, the possibility of leaks will be completely eliminated. To do this, it is necessary to correctly install and lay pipes.
All connections must be well sealed. After laying the sewer, builders must check its tightness. Even minimal leakage is not allowed.
The commission will accept the design and sign the certificate of suitability of the facility only if no sewage leaks are detected. Over time, butt joints sewer pipes start to leak.
How to deal with this phenomenon, what measures need to be taken to avoid leakage, how to seal sewer pipes?
Sealing with self-adhesive tape
This material appeared on the construction market quite recently. The tape was specially designed for sealing sewer joints. The film has White color, is wound onto the bobbin. Tape width does not have standard value. Each manufacturer sets this size independently.
Advantages of self-adhesive tape:
Flaws
The tape does not withstand hits well ultraviolet rays. It cannot be used for installation of open sewer systems.
If you need to create a sealed connection directly on the street, you need to cover the area where the self-adhesive film is being treated with any sun-protective material.
Professionals use this self-adhesive film for other purposes. It has become often used when it is necessary to create a hermetically sealed connection of fittings and other shaped parts.
Nuances of work
In order for the work to be done efficiently, the surface of the pipe must first be prepared. There should be no accumulation of dirt on it. After cleaning, the pipe is dried.
Then a primer layer is applied and the surface is dried again. Tape is glued to the prepared surface of the pipe. She wraps herself around problem area in the form of a spiral.
To achieve good tightness, each new layer of tape should cover half of the previous layer. Usually several layers are wound. Such a pipe will be completely sealed.
Important! No folds should form when winding. Even very small wrinkles can cause leaks. Be careful, wind tightly and avoid wrinkles.
Silicone sealants
This material is based on rubber. In principle, such sealants consist of a mixture of the most different substances. They create a high quality seal.
It must be said that the adhesion of silicone sealants is very high. Therefore, applying the sealant does not require additional surface treatment with special primers.
Depending on the type of hardener, such sealants have several varieties.
Acid
The cost of such silicone sealants is not very high. However, they can only be used on certain surfaces. They cannot be used to seal pipes if acid moves through them.
Neutral
This type of material is considered universal. They can be used to seal plastic and metal sewer products. Silicone paste that undergoes a vulcanization process becomes a rubber-like substance.
Professional advice! To avoid complications when squeezing out the sealant, you can use a mounting gun. If you don’t have a gun, you can insert the handle of a hammer inside the tube and apply pressure. The handle will act as a piston.
Other types of sealants
Of course, in addition to silicone sealant, there are other substances for sealing sewer systems.
Epoxy resin. This composition has long established itself as great helper in pipe sealing. It is often used in domestic conditions when sewer pipes are joined or repaired.
Portland cement. This component is included in many sealing mixtures. It is used when it is necessary to create asbestos cement mixture. Portland cement is used to caulk socket joints in cast iron sewer pipes.
Bitumen. A substance used to produce a mixture used to seal joints. It is used to process sockets on ceramic pipelines.
Hemp rope. Used in technological process for processing sockets of cast iron and ceramic sewer pipes. The highest effect is achieved by combining resin impregnation with jute rope. Such sealing will never leak.
Technical sulfur. Most often used for processing butt joints on sockets of cast iron products. Before processing the butt joint, the sulfur is crushed and heated until it begins to melt.
What is cold welding used for?
This modern substance consists of several components. The basis is epoxy resin, to which special fillers are added. Thanks to their properties, a composition is obtained that gives the processed product the desired qualities and high surface adhesion.
Therefore, the surface roughness of the workpieces only contributes to more reliable adhesion.
In its appearance, “cold welding” is very similar to plasticine in which several colors are mixed.
Before you start using this “welding”, you need to knead the plasticine well until all the colors are mixed and you get the same shade.
After this, the prepared mixture is tightly pressed to the thoroughly cleaned, dried and degreased surface at the crack site. After complete hardening, it completely closes the crack.
A very important advantage of this material is its high adhesion. It fits perfectly on surfaces where moisture is constantly present. Thanks to its excellent adhesion, “cold welding” very quickly eliminates a leak formed at the joint of a sewer pipe. Complete drying " cold welding"can last for 24 hours. However, it is quite difficult to say exactly how long it takes to dry. It all depends on the temperature conditions and the amount of material from which the mixture was made.
Until the mixture is completely dry, use of the sewer is prohibited.
How to seal sewer pipes?
In addition to the materials listed above, professionals also use other well-known substances for sealing:
In everyday life, epoxy resin remains the most popular. To use it, a special polyethylene-polyamine hardener is used if cold hardening occurs.
If this process occurs under heat, maleic anhydride is used.
Sometimes the hardener is made from other materials that have similar properties. The preparation of epoxy sealant is done in a ratio (10:1 or 5:1).
Technical sulfur is used to treat sewage discharge. First it is crushed, then heated until it becomes plastic. Heated sulfur is poured directly into the outlet area.
When processing cast iron products, hemp rope coated with resin shows the greatest effect.
To treat existing joints of ceramic products, use asphalt mastic or petroleum bitumen.
How to seal cast iron pipes
To connect a riser made using a cast iron pipe, you need to insert one pipe into the socket at the end of the other. The resulting joint is sealed with a special sealant.
The entire process is carried out by experienced craftsmen in a certain technological sequence.
Ordinary linen tow closes the gap formed between the pipes. It is inserted to a depth of more than 2/3 of the gap and compacted well.
A little advice! If flax tow is not available, tarred hemp will perfectly replace it.
Then Portland cement is mixed with water (1:9) and the remaining free gap in the riser is closed with this mixture.
Good to know! To obtain the mixture, you can use cement by mixing it with asbestos fiber (2:1). Before you start pouring this mixture into the pipe, you need to add a small portion of water.
The materials described above can be replaced with modern silicone sealant. It is already poured into the existing gap in its finished form. To prevent it from drying out instantly, you need to first cover the area where it is applied with plastic wrap.
How to seal a joint between cast iron and plastic
When renovations begin on an old home, one serious problem arises. It is necessary to connect modern plastic pipes with old cast iron products. This situation requires a competent approach.
The work is performed in the following sequence:
- To connect pipes made of different materials, you need to prepare special adapters.
- The cast iron pipe must be thoroughly cleaned and degreased.
- The pipe is carefully sealed inside and outside with sealant.
- The prepared adapter is inserted into the socket.
- Wait several hours until the sealant hardens.
- A plastic pipe is connected and the joint is sealed.
- The connection is checked for leaks.
This technology, if carried out strictly point by point, will allow you to get reliable connection, characterized by great strength and good tightness.
This connection will not create any problems in the future; leaks in such places are completely excluded.
In the presented video you can see how sealing work is carried out and self-waterproofing sewer pipes.
vseprotruby.ru
Features of the sealant
General information
Sealing the joints of sewer pipes requires the most responsible approach, since depressurization of the system entails dire consequences. If this happens with an internal open system, for example, in an apartment, then the housing will have bad smell or even sewage will begin to seep out, flooding the room.
Depressurization outdoor system leads to soil pollution, groundwater etc. In addition, groundwater and soil can leak into the pipe, causing the system to stop functioning.
Sealant is capable of providing reliable and high-quality sealing. This product is sold in tubes in the form of a paste. It is based on silicone rubber, as well as a rather complex mixture of various synthetic substances.
The sealing process with this product is as follows:
- after application to the surface, the liquid composition fills all cracks and cavities;
- after this, the vulcanization process begins, as a result of which the silicone paste acquires a consistency similar in properties to rubber. Vulcanization is carried out as a result of exposure to the composition of moisture in the air.
Thus, the joints of all parts are sealed.
In private homes, it is necessary to seal not only the sewer system itself, but also the place where the pipes enter.
As a rule, the sealing of the inputs is carried out using rubber sealing bushings and sealing cuffs.
Basic properties
Among the features of the sealant, the following qualities can be distinguished:
- good adhesion to any surfaces. Therefore, you can use sealant for PVC sewer pipes, as well as cast iron systems. Moreover, before applying the composition, the surface does not need to be treated with a primer, as is the case with the use of many other means;
- good elasticity, due to which the seal is not broken even as a result of vibrations and other mechanical influences;
- does not lose its performance over time;
- dries quickly - the sewer can be used just a few hours after assembling the system;
- tolerates high temperatures well and is also resistant to aggressive environments;
- retains elasticity at low temperatures.
It is thanks to these qualities that sealant for sewer pipes is very popular.
Kinds
First of all, it should be said that only silicone sealant should be used for sewer systems. There are two types of it on sale:
- acid- is cheaper, but is not suitable for surfaces that cannot withstand acids. In addition, such compositions react with acids and alkalis. Therefore, they are not the best choice for plumbing and sewer systems.
- neutral- is more expensive, but at the same time more versatile.
Usage
So, what to seal with? sewer system we figured it out. Now let's look at how to use this tool correctly.
It should be noted that the instructions for assembling a pipeline using sealant are extremely simple:
- if necessary, part of the pipe is cut to obtain the required length. It should be noted that the pipe can only be cut from the smooth side;
- then a chamfer is cut from the cut side and the burrs are removed. To do this, you can use a sharp mounting knife;
- After this, a cuff is inserted into the socket. First, it and the bell itself must be cleaned of possible debris;
- then all adjacent surfaces are treated with sealant;
- then the smooth part of the pipe is inserted into the socket until it stops;
- all elements of the system are connected according to this principle;
- After a few hours, when the sealant has hardened, you can check the operation of the system to make sure it is tight.
During the curing process, the sealant should not be exposed to moisture so that it acquires the necessary properties within the time specified by the manufacturer.
As we can see, this process is extremely simple, so even an inexperienced person can handle it with their own hands. However, it should be noted that only a plastic pipeline is assembled using this scheme. If the pipes are cast iron, the work is performed somewhat differently:
- after connecting the pipes, the socket is filled 2/3 with linen tow and compacted with a wooden spatula;
- then the remaining part of the socket space is filled with sealant.
If you need to connect cast iron pipes to plastic ones, you should use special rubber adapters.
Before connecting, they also need to be treated with sealant.
This is, perhaps, all the information that will allow you to independently ensure the tightness of sewer pipe joints without much difficulty.
obustroeno.com
Sealing materials
It is known from construction practice that re-sealing joints of sewerage pipes and deformed seams is comparable in scope of work to installing a system from scratch. Therefore, this process should be approached with the utmost seriousness.
Important! When installing external sewerage, it is necessary to exclude the presence of leaks not only from inside the pipeline, but also inside it. This way you will avoid overflowing the drainage system, which can arise from the penetration of groundwater into it.
Today, the most popular materials are:
- silicone sealants;
- cement mortar and resin rope;
- tapes for sealing.
The most popular are silicone based products.
Besides, modern industry issues special means. So, if you are looking for how to seal sewer pipes made of ceramics, pay attention to petroleum bitumen and asphalt mastic. This will be the best choice. And reliably seal the socket joints cast iron pipes you can with the help of technical sulfur.
The most common methods of sealing
Silicone sealants. This material is a mastic that can harden when exposed to air. One of the advantages of silicone sealant is that there is no need to pre-treat the pipe surface with primers. For its manufacture, silicone rubber is used, into which special additives are added that enhance the degree of adhesion and, accordingly, the strength of the sealing layer.
The work takes a minimum of time and does not require professional skills. A mounting gun is used for extrusion. If you don’t have it at hand, and the sewer pipe is leaking at the joints, you can use with a simple hammer, the handle of which will serve as a piston. Upon completion of the vulcanization process, the silicone mastic will turn into a certain substance similar in its properties to rubber.
Table No. 1. Silicone sealant consumption
| Meters per cartridge 110 milliliters. | |||||||
| Depth of sealant layer, mm | 25 | 20 | 15 | 12 | 10 | 7 | 5 |
| 5 | ˗˗˗ | ˗˗˗ | ˗˗˗ | ˗˗˗ | 6,0 | 8,0 | 12,0 |
| 7 | ˗˗˗ | ˗˗˗ | ˗˗˗ | 3,0 | 4,0 | 6,0 | ˗˗˗ |
| 10 | ˗˗˗ | 1,5 | 2,0 | 2,5 | 3,0 | ˗˗˗ | ˗˗˗ |
| 12 | 1,0 | 1,2 | 1,7 | 2,1 | ˗˗˗ | ˗˗˗ | ˗˗˗ |
| 15 | 0,8 | 1,0 | 1,3 | ˗˗˗ | ˗˗˗ | ˗˗˗ | ˗˗˗ |
| Meters per file package 600 milliliters. | |||||||
| Width of the sealing layer, millimeters. | |||||||
| Depth of sealant layer, mm | 25 | 20 | 15 | 12 | 10 | 7 | 5 |
| 5 | ˗˗˗ | ˗˗˗ | ˗˗˗ | ˗˗˗ | 11,0 | 15,0 | 23 |
| 7 | ˗˗˗ | ˗˗˗ | ˗˗˗ | 6,0 | 7,0 | 11,0 | ˗˗˗ |
| 10 | ˗˗˗ | 3,0 | 4,0 | 5,0 | 6,0 | ˗˗˗ | ˗˗˗ |
| 12 | 2,0 | 2,4 | 3,0 | 4,0 | ˗˗˗ | ˗˗˗ | ˗˗˗ |
| 15 | 1,4 | 1,9 | 2,5 | ˗˗˗ | ˗˗˗ | ˗˗˗ | ˗˗˗ |
Cement mortar and resin rope. Sealing sewer pipes with these materials is in the classic way eliminating leaks. It is performed by caulking 2/3 of the depth of the socket with a resin tow and then pouring into the remaining 1/3 cement mortar, made on the basis of M300 cement. The cement mortar is prepared in a ratio of 1:9.
Those homeowners who are looking for how to seal sewer pipe joints with the least amount of labor are recommended to use special expanding waterproof cement. In this case, they will be able to seal the problem area without a resin band. This is due to the fact that such cement quickly hardens and at the same time expands. The solution must be prepared immediately before use by mixing cement with water in a ratio of 1:2.5.
Important! The socket joint should be centered, secured, and only then thoroughly filled with the prepared mixture.
Self-adhesive tape. This material is rightfully considered a highly effective sealant. In addition, the tape has dielectric and anti-corrosion properties. Ease of use plays a significant role in its high popularity.
Self-adhesive tape, or FUM tape, is used to seal bends, taps, plugs, turning corners and, of course, when a sewer pipe is leaking at the junction. In the latter case, it is necessary to perform a certain sequence of actions. The first stage is preparing the surfaces of the joined pipes for the upcoming procedure by cleaning them from dirt and dust. After allowing the surfaces to dry, if necessary, treat them with a primer.
Next, the tape is carefully wound in a spiral around the connected pipes with good constant tension. In this case, it is necessary to prevent the formation of any, even small, folds. To reliably seal, wrap the pipes with a 50% overlap. Then the surfaces and the joint itself will be covered with two layers of self-adhesive tape.
Cold welding
Cold welding is a mixture of epoxy resin with special fillers. They give the created product the required qualities, including strong surface adhesion. Thus, the roughness present on the attached surfaces only contributes to their more reliable adhesion to each other.
By appearance cold welding resembles two-color plasticine. Before use, you need to knead it and mix both colors until you get a uniform shade. Then this mixture should be pressed as quickly as possible onto the leak area that has been cleaned to a shine, dried and thoroughly degreased.
One of the significant advantages of this material is its excellent adhesion to surfaces on which moisture is present. Thus, if a sewer pipe is leaking at a joint, the use of cold welding allows you to quickly seal the existing leak.
A connection created in this way will become reliable after 1 ˗ 24 hours. Exact time depends on the amount of material used and temperature conditions. But in any case, for this period you will have to stop using the sewer system.
How to seal the joint between plastic and cast iron pipes
If a cast iron sewer pipeline is leaking, the home owner can replace the damaged segment with a piece of pipe made of the same material. But there is also Alternative option in the form of a plastic product. However, in this case, it is necessary to know the nuances of how to seal a sewer pipe consisting of components that differ in their characteristics.
To achieve a good result, first of all, you should purchase rubber or polymer adapters. Having done this, you can start working. First you need to clean the cast iron bell from rust and dirt. To improve the level of tightness, it is recommended to then degrease it. Next, a layer of silicone sealant is applied to the inner surface of the socket. The same operation must be performed on the outer surface of the adapter pipe. Then this structural element is carefully inserted into the socket. Upon completion of the polymerization process, the pipe, together with the plastic part, is connected to the pipeline. If there is no spare pipe, the best solution to fix the leak is to use a metal clamp.
You can purchase such a mount already with a rubber seal, or you can cut a piece of suitable size yourself. A clamp is generally a universal solution to many problems associated with pipe repair.
Helpful advice! For best result Rubber pads are applied to the problem area in one or even two layers, after which this structure is tightened with screws.
Don't discount the easiest way to seal sewer pipe joints: sealing them with paint. Although this method is rarely used, it also gives good results. And on all types of sewer pipes. It is carried out in two stages: first, the socket must be filled with cloth and filled with paint. Then, using a screwdriver, the contents of the socket are compacted well. After the resulting mass has hardened, you can begin to operate the repaired drainage system.
To choose from suitable option Sealing of sewer pipes is influenced by the following factors: the location of the pipeline and the material from which it is made. But know: you can do this work with your own hands. To do this, you just need to clearly set yourself a task, carefully study the instructions for using this or that material and follow the tips of common sense.
trubamaster.ru
The purpose of sealing system elements
The sewerage system is reliably sealed during the installation stage. During operation internal system regularly inspected to detect and eliminate leaks in time. Wastewater should not leak out, and nothing should get into the sewer system from the outside, because... this can disrupt its operation and lead to serious damage.
Particular attention should be paid to sealing pipes located underground, as they are much more difficult to repair if leaks occur. If the operation of the system is disrupted due to groundwater entering it, a lot of effort will have to be made to determine this.
Careful sealing during the construction phase of the sewer system prevents problems such as:
- Leaks to the outside. Once in the soil, wastewater can contaminate water in drinking wells and cause serious illnesses. The smell of sewage in the premises is also dangerous, because... rotting organic matter releases gases harmful to humans: hydrogen sulfide, ammonia, methane.
- Flooding of buildings and structures. In case of severe leaks, soil erosion may occur. Sewage water floods foundations, cellars, cellars, and basement floors. Due to the high content of chemically active substances, they accelerate the destruction of building materials and provoke corrosion.
- Leaks into the system. If atmospheric or groundwater enters the system, the pressure in the pipeline increases. Due to the strong pressure of wastewater, the operation of pipes is disrupted, and treatment or storage facilities may not be able to cope with the additional load and fail.
- Leaks at joints due to temperature changes. If the system is initially installed efficiently, the joints are reliable and do not leak even without additional sealing. However, processing is still necessary, because Temperature changes over time lead to a decrease in tightness.
For the installation of sewerage systems, pipes made of different materials are used, and a suitable sealant should be selected for each type of pipe. The choice also depends on the installation technology and the intended purpose of each individual element of the system.
Main types of sealing materials
Many different materials are used to seal sewer pipe connections:
- sealing tapes;
- polymer sealants;
- technical sulfur;
- jute and hemp ropes;
- epoxy resin;
- Portland cement;
- mastics based on petroleum products.
Each sealing material has its own varieties, features, purpose and scope of application.
Option #1: Sealing tapes
There are regular and foil self-adhesive tapes. They are designed for sealing connections of water and sewer pipes and have unique properties. The tapes contain bitumen-polymer materials, making them absolutely waterproof.
Depending on the operating temperature range, there are three main types of tapes:
- Summer (in the marking it is indicated by the letter L). The tape can be used at temperatures up to +300˚С. It is suitable for insulating pipelines through which hot liquids are pumped.
- Winter (marked with the letter Z). The temperature range at which the material does not lose its sealing properties is from -200˚ to +100˚С.
- Heat-resistant (the properties are indicated by the letter T in the marking). This tape is used to insulate pipelines through which liquids with temperatures up to +1500˚C are pumped. In this case, the ambient temperature can fluctuate from -100 to +300˚С.
For insulating sewer pipes indoors, summer or winter sealing tape is suitable, but for outdoor work it is better to choose winter tape.
The advantages of the material include the following properties:
- No deformation. If the tape is applied correctly, no bubbles will appear underneath it during use.
- Dielectric properties. The tape protects against electrical voltage, which often becomes one of the causes of corrosion. metal pipes wires
- Resistance to all types of influences. The material does not delaminate, is characterized by mechanical strength, resistance to chemicals, and soil corrosion. It is so reliable that it can even be used when laying oil pipelines, so you can definitely rest assured about the sewerage system.
The unique characteristics and strength of sealing tapes allow them to be used at any temperature and in almost any conditions. The service life of the adhesive coating is at least 30 years. During this time, the tape does not lose its properties and remains 100% tight.
To ensure that the material does not lose its properties for a long time, it must be applied correctly. The surface preparation stage is very important. They are thoroughly cleaned of old coatings, degreased and dried.
It is necessary to monitor the uniformity and tension of the tape while wrapping the pipe and make wide overlaps equal to half the width of the material. If the tape is applied correctly, the surface will be covered with two protective layers.
Option #2: polymer sealants
Silicone sealants are most often used to treat the joints of sewer systems. Another option is polyurethane compounds. They are universal, suitable for sealing and gluing most different designs and elements. Optimal solution– buy a special silicone-based plumbing compound, selecting it taking into account the material and operating conditions of the system.
Silicone contains rubber, which makes the finished material highly elastic and adhesion to any substrate. When using silicone sealants, it is not necessary to prime the surfaces to improve adhesion.
Depending on the composition of the hardener, there are two main types of silicone sealants:
- Acidic. The main advantage of acid compositions is reasonable price at good quality. The disadvantages include a limited scope of application: sealants are not suitable for all surfaces and can enter into chemical reactions.
- Neutral. These sealants do not contain acids, so they do not destroy pipes. This significantly expands the scope of application and makes the materials universal. The downside is the higher cost than acid formulations.
Silicone sealants are usually used to seal joints between plastic and metal sewer pipes. After polymerization, they form dense elastic coatings resembling rubber. Due to their high elasticity, they tolerate loads well and do not crack.
Sealants are applied using mounting guns that squeeze out the contents of the package. The joints are processed along the entire circumference. The line should be continuous so that there are no gaps. After applying the composition, the seam is carefully leveled with a special soft spatula or a wet gloved finger.
Option #3: technical sulfur
Technical sulfur is produced by processing petroleum products. It can be powdery or lumpy and is sold in hardware stores. This is a good option for sealing joints in cast iron pipes. An additional plus is the low price.
The sulfur is crushed (if lumpy sulfur is purchased), heated to the melting temperature (about 130-150˚C), and then poured into the bell space. When the material hardens, it will turn into a dense, waterproof mass. Its only drawback is low elasticity.
Option #4: Portland cement
Portland cement is indispensable for many types of work. The material contains clinker, gypsum, and calcium silicates. The dry mixture is diluted with water until a thick solution is obtained. It hardens quickly, forming a high-strength, frost-resistant and water-repellent monolith.
Special additives are added to the cement mixture to increase its elasticity. This allows you to reliably seal the joints of cast iron pipes. The material is resistant to temperatures, tolerates freezing and unfreezing well, so it is successfully used in the arrangement of external sewerage.
Option #5: epoxy resin
Epoxy resin is a universal adhesive that can also help out when installing sewer systems. To prepare a sealing compound, epoxy resin is mixed with a hardener. The proportions depend on the brand of material and are indicated in the instructions for use.
When mixing resin and hardener, it is important to strictly follow the manufacturer's recommendations, otherwise the hardening time of the composition and the performance properties of the finished coating may change.
Option #6: bitumen mastics
The sockets of ceramic pipes are often filled with bituminous materials. Bitumen-rubber and bitumen-polymer mastics have proven themselves to be excellent. Based on the type of application, they are divided into cold and hot.
To seal pipes, it is better to use cold-applied compounds, because... they are much easier to use, and the work itself is safer. The only disadvantage of such sealants for sewer pipes is that they are somewhat more expensive.
Option #7: jute and hemp ropes
To seal the joints of cast iron and ceramic sewer pipes, hemp and jute ropes and resin strands are traditionally used. These are cheap and easy-to-use materials, but in terms of their technical and operational properties they are significantly inferior to modern sealants.
For sewer pipes, it is better to use sanitary silicone or polyurethane sealants. Their quality and durability can vary greatly depending on the manufacturer, so pay attention to brands and choose the most reliable ones.
8 best sealant manufacturers
Brand Sealants Ceresit And Moment out of competition. They are reliable, durable, highly elastic and adhere to any surface. If you have the opportunity to purchase formulations from these brands, do not hesitate, because... you will pay not just “for the name”, but for real quality.
There are 6 more brands that produce decent products:
- Ciki Fix. This brand produces high-quality transparent sealants that are perfect for metal and ceramic pipes. The finished coating is resistant to impact detergents, solvents.
- Belinka. These are popular one-component compositions for sealing seams and joints. They are resistant to negative influences, durable and elastic.
- Tytan. Trademark Tytan produces high-quality silicone-based sanitary sealants. If you need a high-strength seam, you should give preference to the Tytan Professional polyurethane composition.
- Krass. The Krass brand produces fast-curing, one-component sealants, which, after hardening, form tight joints that do not shrink.
- S 400. Distinctive feature sealants of this brand – increased biological stability. Includes a large number of fungicides that prevent the appearance of fungus and mold on seams.
- Dow Corning. The sealants of this brand hold surfaces together so firmly that they are used as glue. They are thicker than compounds of other brands and penetrate deeply into seams and joints.
Sometimes sealants are subject to increased requirements for certain performance characteristics. In such cases, it makes sense to carefully study the manufacturers' descriptions and consult with sellers.
For example, the best sealant for rooms with high fire hazard– universal composition Krass; for complex connections - “Moment Germent”; for ceramic pipes – Belinka Belsil Sanitary Acetate; and for rooms with constant high humidity– Ceresit CS 25 or S 400.
Useful video on the topic
During the process of sealing a sewer system, many questions arise. We offer video materials that will help you cope with difficulties and complete all the work yourself.
Instructions for sealing sewer pipes using silicone sealant:
We offer video instructions on how to properly mix epoxy resin and hardener:
Do-it-yourself video tutorial on sealing the socket of a cast-iron external sewer:
Detailed instructions for sealing the socket of sewer pipes when switching from cast iron to plastic:
Whatever type of sealant for sewer pipes you choose, you need to carefully prepare the surfaces and perform the work efficiently. There should be no cracks or fistulas on the pipes. Before sealing, they are cleaned, repaired, and degreased. When working, you should strictly adhere to the technology, and after finishing it, wait the allotted time until the composition hardens. Only after this the system can be operated normally.
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Sealing of sewer pipes is necessary for the components of sewer systems, especially at their joints. To carry it out, you will, of course, need to use some kind of sealant designed directly for sewer pipes. Our article will tell you how to choose the right sealant and how to properly seal it.
The Importance of Sealing
The sealing process should be taken quite seriously right away, since the work is carried out with pipes, unlike exterior finishing, for example, the defects of which are quite easy to correct. To reseal seams that have undergone deformation, the same amount of work will be required as to build the system from scratch.
When installing a sewerage system, it is unacceptable for the following to occur:
- leaks from inside sewer pipes;
- leaks inside sewer pipes. For example, when laying an external sewerage pipeline, groundwater is not allowed to enter.
Materials intended for sealing
Sealing tapes
Self-adhesive tapes, which have anti-corrosion properties and are specifically designed for sealing pipe joints, are one of the newest modern means sealing. They have many positive properties:
- Self-adhesive anti-corrosion tapes are quite highly effective and easy to use.
- Sealing films, thanks to their high-strength polyethylene base, are characterized by good properties operation.
- They are used to provide protection for various types of pipelines as a whole, as they have dielectric and anti-corrosion properties. In addition, sealing films are used to seal linear elements of sewer pipes.
- Sealing using tape is possible not only when sealing the joints of sewer pipes, but also when sealing plugs, taps, turning corners, bends, etc.
Before sealing a sewer pipe using sealing tapes, remember that sealing is carried out in the following sequence:
- To apply the tape, surface preparation is necessary: it must be dry, dust-free and clean;
- it is necessary to ensure constant tension of the tape that is wrapped around the pipe, and also to prevent the appearance of folds and wrinkles;
- the tape must be applied, providing an overlap of 50%, in a spiral, as a result of which the entire surface to be insulated will necessarily be under two layers of film.
Pro tip:
Such films are not resistant to UV radiation. That is why, when placing sewerage pipes in an area that is exposed to the sun, an additional protective layer must be provided over the film.
Silicone sealants
Silicone rubber forms the basis of silicone sealants. Silicone sealants in general are a composition of different substances that provide high quality sealing. Silicone sealants have good adhesion to surfaces, without requiring them to be pre-treated with primers.
Based on the type of hardener in its composition, sealant for sewer pipes made of silicone is divided into:
- Acid. Acidic silicone sealants are quite inexpensive, although they cannot be applied to some surfaces that can interact with acids.
- Neutral. In this regard, neutral silicone sealants are considered more universal.
Using silicone sealants, it is possible to seal the joints of sewer pipes:
- made of metal;
- made of plastic.
After vulcanization, the silicone paste turns into a substance that is similar in properties to rubber. The vulcanization process of silicone sealant involves moisture in the air.
Pro tip:
Squeezing out the sealant is quite simple - using a mounting gun. If it is not available, you can use an ordinary hammer by inserting its handle into the tube and pressing as if on a piston.
Sealing sewer pipes with other sealants
In addition to the above means, sealing sewer pipes is also done using other means:
- Epoxy resin- at home, like glue based on it, it serves as the most common means used when connecting sewer pipes.
- Portland cement is a fairly common component of most sealing mixtures - it is used in the preparation of asbestos-cement mixtures and when caulking the socket joints of cast iron sewer pipes.
- Petroleum bitumen and asphalt mastic– will be required for preparing the fill, which is intended for sealing joints and filling sockets of ceramic pipelines.
- Hemp or jute rope, resin strand– used for sealing sockets of sewerage pipes made of cast iron and ceramics. Using a combination of rope and resin impregnation would be preferable.
- Technical sulfur– used to ensure tightness, mainly at the joints of sockets of cast iron sewerage pipes. Before pouring it into the joint gap, it should be crushed and then heated until melting.
With such an abundance of materials, the question is unlikely to arise: “How to cover a sewer pipe?”
Classic socket sealing
Traditionally, sealing of sewer pipe joints is carried out by caulking 2/3 of the socket depth with a resin tow and then pouring cement mortar into the remaining 1/3. In this case, the mass proportion of 300K grade cement to water will be 9:1.
The cement mixture can be replaced with a mixture of asbestos cement, and the grade of cement should be 400 or higher with the content of asbestos fiber, the proportion of which is 2:1. This mixture is prepared in advance, and immediately before use it is diluted with water.
The laborious and tedious caulking of the seal can be replaced by sealing the socket with cement, which has expansion and waterproof properties, which is also capable of fairly rapid hardening, in parallel with self-sealing and expansion.
The joining of sewer pipes, that is, the connection of the sockets, is centered and filled completely with a solution that is made of expanding cement and water in a proportion that looks like this: 1: 2.5.
The choice of sealing method itself is, in fact, of little importance, since all of the above means have sufficient high level reliability. The main thing in this process will be a competent approach to the sealing process itself. After all, it is the sealing process that is the determining factor subsequently for the absence of leaks when sewer pipe joints are sealed.
The service life of a fireplace or stove largely depends on how and with what exactly the chimney is sealed using stainless steel or other materials.
Correct installation does not guarantee the absence of problems with combustion products entering the room. Over time, pipe materials are subject to thermal deformation, which leads to ruptures and cracks in the structure.
This leads to a decrease in draft, as a result of which a large volume of combustible material is required to heat the house, and because of this, soot intensively settles on the inner surface of the pipe. The latter is especially dangerous, as it not only leads to the formation of condensation, but can also cause a pipe fire.
For this reason, for the stable functioning of a chimney made of stainless steel or any other materials, it must be regularly inspected and any deficiencies that may arise must be promptly corrected. To avoid problems in the future, it is better to seal all cracks and joints to avoid defects.
The construction market offers a wide range. The entire wealth of choice is conventionally divided into heat-resistant and heat-resistant sealing agents, although, of course, there are many more varieties.
Types of sealant for stainless steel chimneys
By sealing the cracks of stove or fireplace pipes, combustion products will not enter the room through them. Reliable insulation makes using a stove, fireplace or boiler as safe as possible.
Watch video - high-temperature products for stainless steel and other materials
All sealing agents can be divided into several types:
- based on silicone or silicate;
- by composition: one-component or two-component;
- according to temperature characteristics: temperature-resistant sealants and heat-resistant.
As the name suggests, one-component sealants consist of one component and do not require mixing of ingredients before the sealing procedure. This makes them easy to use and popular with home owners who appreciate the ease of use of the insulation product.
Two-component However, before starting work you need to mix it, strictly observing the proportions specified in the instructions. In this case, the finished product should be used within several hours after mixing. This option is not suitable for sealing joints with your own hands; professional builders usually use two-component insulation.
In addition to chimney insulation, sealing compounds are also used to insulate structural seams heating system based on an electric boiler when eliminating pipe leaks.
Silicone sealants for structures made of stainless steel, glass and other materials
When wondering how to seal a chimney made of stainless steel, glass, plastic or ceramics, you should pay attention to fireproof silicone. This material promotes close contact of structural parts with each other and reliable insulation. The main advantages of silicone composition:
- thanks to elasticity, the quality of contact is maintained for a long time, even when, due to high temperatures, structural elements are deformed and change position relative to each other;
- after completion of the polymerization process, the material becomes very durable;
- silicone is absolutely waterproof;
- the material has a high degree of resistance to ultraviolet radiation and other weather conditions;
- Silicone is characterized by high thermal and heat resistance.
Silicone sealants come in two types:
- Acidic. They release acetic acid during hardening, which can damage the pipe or roofing. Such a product will definitely not help in solving the problem than sealing a chimney made of stainless steel or a material of natural origin: cement, stone or concrete, as it can contribute to the formation of corrosion metal elements, destruction of the sections of the pipe and roof in contact with it.
- Neutral insulation products, unlike acidic ones, are thrown into the environment water and alcohols. This is a suitable sealant for stainless steel chimneys.
An additional advantage of silicone-based products is that as a result of heating, the iron oxide contained in it turns brown, which makes the insulation more invisible against the background of a roof or brickwork.
Heat-resistant and heat-resistant sealants: what are the differences?
According to their temperature characteristics, insulation products are divided into heat-resistant and heat-resistant. They are used to seal joints between different sections of the structure, as they can withstand different temperatures. If heat-resistant ones are only suitable for external surfaces, then heat-resistant ones can seal the cracks of a high-temperature chimney, where temperatures are especially high.
Heat-resistant adhesive for sealing: scope of application, characteristics
This type of insulation is suitable for working with external walls fireplace, stove, as well as processing the joint between brickwork and roofing.
It should not be used for stainless steel pipes, as it has quite a low temperature heating - only 350°C.
Heat-resistant sealant is made from silicone. The temperature range at which a product can be used is affected by the additional components present in the product and their percentages. The most common additional component is iron oxide, which gives insulation brown tint.
The main characteristics of this type are as follows:
- high elasticity of the thermosealant: due to its resistance to deformation, silicone can be used for insulation on pipe sections quite complex shape. It will easily cope with the task and will not crack under the influence of temperature;
- mid range temperature conditions heat-resistant silicone ranges from +250°C to +320°C;
- resistance to ultraviolet radiation: insulation can be used to seal external structural elements;
- silicone does not allow moisture to pass through, which also makes it convenient for outdoor use. Rain and snow are not scary for him;
- high adhesion allows the silicone composition to adhere perfectly to the most different types surfaces: brick, metal or ceramics.
Silicone has few disadvantages, but they still exist:
- due to its low heat resistance, it is not suitable for sealing internal surfaces that directly interact with fire;
- Since the material is elastic, it cannot be painted. The paint will not remain on its surface for a long time.
Curing speed of heat resistant insulating material depends on the temperature at which the work takes place. At low temperatures and high humidity, the composition will take longer than indicated on the package. In dry air and high temperature it will harden faster. The insulation also adheres better to a dry surface.
Heat-resistant sealant: for which structures it is suitable, pros and cons
A heat-resistant insulating agent is a better option than caulking the joints of a metal and stainless steel chimney. This is explained by the fact that silicate, which is the main component in the refractory composition, perfectly withstands high temperatures up to 1200-1300°C, and under short-term load – up to 1600°C.
Watch the video – stainless steel versus galvanization
The silicate composition is suitable for sealing cracks in fireplaces and stoves where there is direct contact with fire. Typically, high temperature insulation material is gray or black.
The main advantages of fire-resistant silicate:
- the chemical inertness of the product allows it to be used for structures made of any material, since it does not react with it;
- silicate insulation is resistant to sun rays and precipitation, it can be safely used to treat areas of the chimney located in the open air;
- The top layer becomes porous after drying, making it easy to paint.
- upon completion of the polymerization process, the product becomes rigid: the slightest vibration or “walking” of structural elements can lead to cracks. Therefore, it is not used for pipes made of materials prone to significant temperature deformation. Seal silicate composition only cracks are worth it, since when processing the chimney elbow, problems may arise in the future with its disassembly for cleaning;
- silicate products have rather low adhesion: the composition will not last long if the sealing area is not treated with a special composition before applying it;
- silicate-based sealant can only be applied at temperatures above 20°C and humidity not lower than standard levels. If these conditions are not met, the seam will take much longer to set.
Although all silicate heat sealants can withstand high temperatures, in order to seal those areas that will come into contact with the flame, it is better to use only non-flammable sealants labeled “fireproof”.
You should not apply silicate sealant in several layers to increase its wear resistance: this way it will not be able to dry out and will become covered with cracks. The required width and depth of application are indicated in the instructions. The silicate product adheres better to a damp surface, so before starting work it is better to slightly moisten the area where you plan to apply it.
Thermal tape and hot melt adhesive
Another way to seal joints and cracks is with heat-resistant adhesive and sealant. Adhesive composition for insulation it can be made on the basis of materials such as acrylic, silicone or polyurethane. The composition allows not only to seal seams, but also to reliably glue the surfaces of materials together. The adhesive has excellent waterproofing properties and has good adhesion to natural materials and concrete.
How to properly seal?
Most often, difficulties are caused by the heat and waterproofing of the fireplace, or more precisely, by leading the stainless steel pipe through the roof and sealing the joints between them. This is important not only for high-quality pipe insulation, but also to ensure that the roof does not leak.
The place where the pipe connects to the roof is called the chimney outlet. This is a key part of the entire structure that must be carefully sealed. The durability of the roof and the quality of the heating system depend on its reliability.
Most modern roofing materials In addition to the main elements, they have special parts made of non-flammable compounds, with the help of which you can surround the chimney as tightly as possible with a coating and prevent heating of the roof from a hot chimney and possible fire. Thus, insulation also performs fire protection functions.
Even if the house does not have a fireplace or stove, and it is heated using a boiler, there is still a need to purchase boiler sealant to ensure good draft and stable work heating device.
Most sealing compounds are packaged in cartridges or tubes with a sharp tip, which must be cut at an angle of 45° before starting work. It is important to make a hole of the same diameter as the future seam.
Squeeze out the sealant using a standard construction gun, applying it evenly to the desired areas of the chimney. If they process a collapsible chimney pipe made of stainless steel, the composition is applied only to the joints, so that in the future you can easily clean it and disassemble the elements for cleaning.
There are several simple rules for working with sealants:
- It is not recommended to seal pipes and other structural elements at temperatures below +5°C;
- You only need to work with gloves; if the sealant gets on your skin, immediately rinse the area with running water;
- the insulation composition requires at least a day to dry completely;
- Upon completion of the work, you should light the stove or light the fireplace to check the quality of the work performed.
The sealing compound should be used as follows:
- Clean the surface where the sealant will be applied;
- If the composition is heat-resistant, then it is better to treat the area with abrasive to increase adhesion. If the surface is made of brick, you can make several scratches on it for this purpose;
- The application area is degreased and dried (naturally or construction hairdryer). Drying is necessary only for compositions for silicone based, to apply heat-resistant ones, on the contrary, the surface must be moistened.
Next, the cracks, crevices and joints are sealed: the work must be done strictly with gloves, observing the thickness and width of the seam specified in the instructions. It is important to ensure air access to the place where the composition is applied: this is necessary for its proper hardening.
Sealing the chimney with cement
If for modern finishing materials There are sealants made of silicone and silicate, so to seal a slate roof, a method known to our grandfathers is suitable - a mixture based on asbestos and cement.
The chimney is sealed with cement as follows:
- First prepare a mixture of cement and asbestos in a 1:1 ratio. It is better to use fluffed asbestos, but you can also tear sheet asbestos into small pieces;
- the asbestos is then mixed with water and allowed to swell until it becomes a homogeneous mass;
- swollen asbestos is mixed with cement;
- the result cement composition coat the gap between the pipe and the roof;
- then you need to wait for the solution to dry completely, and you can light the stove.
What factors influence the choice of sealing agent?
When choosing suitable remedy for hydro- and thermal insulation, they are guided by the conditions under which the stove, fireplace or heating boiler will be used. It is also important to consider where exactly the product will be applied: inside the pipe, outside or at the junction of the chimney and roof. The choice of sealant is also influenced by the heating temperature of the surface that is planned to be treated.
Watch the video - a stainless steel pipe after 2 years of operation (external galvanized and internal stainless steel)
However, in any case, it is worth following general recommendations, which are true in all cases:
- elastic means are better suited for hard-to-reach areas and joints subject to thermal deformation;
- solid sealants are suitable for cracks and brickwork;
- sealants containing iron oxide acquire a brown tint, which camouflages them well against the background of brick;
- To seal a chimney made of metal, stainless steel or natural stone, brick, you should not use acidic compounds that can damage the surface of the chimney of boilers or stove heating.
You should not save on chimney sealant, because forced regular cleaning, as well as the need to re-disassemble the structure, will lead to more expenses, you won't be able to save money. In addition, poor-quality sealant can lead to soot getting into living spaces, the formation of plaque on the walls, poisoning of residents, or even a fire.
The main problem when operating pipelines made of various materials is the possibility of leaks at the junctions of individual pipeline elements. The question of how and with what should be used to seal sewer pipes, which usually have a socket design, is especially acute.
Separately, it is worth noting the need to join elements sewer lines from dissimilar mains, insertion of individual branches in which it is impossible to use standard fittings. These sections of the pipeline are considered the most problematic, and the solution to the problem may differ in both cost and labor intensity of the process.
First of all, it is worth considering the need for high-quality insulation of the connection of elements of external sewer lines.
Which sealant for sewer pipes would not be chosen (we are talking only about quality materials), it will solve two main problems:
- Preventing sewage leakage into the ground. The main task is not only to comply with the norms environmental safety, but also to eliminate the possibility of flooding of underground parts of buildings (basements, basements).
- Equally important is the elimination of leaks and the entry of groundwater or parts of the soil into the sewer system. Soil water can seriously damage the movement of wastewater through the pipeline, in addition, there is the possibility of silting of the sewer system.
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Eliminating the consequences of any of these problems will require a considerable amount of work. At the same time, the costs for excavation costs associated with opening the main line are practically no different from the costs of laying a new line. Therefore, it is economically feasible to purchase materials for sealing sewer pipes, rather than spending money on emergency response work.
Main types of sealants
It must be taken into account that most types polymer pipes does not require additional insulation due to the use of rubber butt seals. Basically, means of sealing sewer pipes are necessary when laying cast iron or ceramic lines. Installation of elements of such highways requires the mandatory presence of the so-called compensation expansion joint, which allows maintaining the integrity of the pipes during certain ground movements.
Whatever sealant for sewer pipes is chosen, it is necessary to follow the technology for its application, otherwise the use of even expensive materials may have zero effect. In practice, various types of materials are used that can provide high-quality sealing of joints, while most pipe sealants were known and effectively used by craftsmen several centuries ago. Recently, polymeric substances and various resins, including epoxy, have been added to the list of sealing compounds.
All existing sealants can be divided into two main classes:
- Products applied in the form of a paste (glue).
- Self-adhesive sealant tape.
Both types of materials allow you to reliably seal and ensure the safety of fitting connections and individual sections of the pipeline. They are used not only when installing sewerage systems, but also when making connections into main lines and carrying out emergency restoration work, elimination of emergency leaks.
Paste-like materials based on various silicone rubber. They are characterized by high sealing ability and are able to provide resistance to possible deformations. During the polymerization process, silicone sealants turn into a rubber-like substance that is highly resistant to various influences.
Can be used for laying and repairing sewer lines made of metal (steel, cast iron), ceramic and polymer pipes.
There are two main types of silicone:
- Neutral, which is used in most cases, ensures reliable sealing of the elements.
- Acidic silicone is necessary for the installation of pipelines working with aggressive media.
Sealing sewer pipe connections with silicone has an affordable cost, while ensuring guaranteed quality and durable operation of the joint, today this material most popular both among professionals and when solving various everyday issues.
This type of sealant is a metallized tape on a bitumen-rubber base. An aluminum or copper layer provides sufficient strength and reliable sealing.
In order to achieve required quality connection using such a tape, you must remember the basic rules for its installation:
- Before use, it is necessary to carefully prepare the pipes or fittings for dusty or wet surface the tape simply won't stick.
- Winding should be carried out in a spiral, with an overlap of approximately 50%, this will ensure that the entire surface can be covered with two layers of tape.
- The winding should be carried out with a significant stretch of the self-adhesive, this will prevent the possibility of its spontaneous sticking after removing the protective layer and ensure uniformity of the coating (no wrinkles or other defects).
Today, self-adhesive tapes for sewer pipes are considered the easiest material to use, while they provide a high degree of sealing of various types of connections. Allows you to significantly simplify the elimination of emergency leaks.