How to understand that the waterproofing of the sewer pipe is flowing. Sealing the joints of PVC sewer pipes, cast iron and plastic pipes without dismantling

The sewerage system must be absolutely sealed. Otherwise, dirt and unpleasant odors cannot be avoided. How to seal sewer pipes? What are the options, and which one is the most effective? This will be discussed in this article.

Use tape for sealing

Many experts will suggest using special self-adhesive tapes. Such material is produced both in the usual and in foil form.

Self-adhesive tapes have a number of advantages:

they are easy to use;
thanks to the basis of polyethylene, they have good performance;
possess dielectric and anticorrosive properties;
can be used to seal almost any pipeline;
are used not only when sealing joints is carried out, but also when applying a protective layer on plugs, bends, tie-ins, etc.

Applying a self-adhesive film is carried out in the following sequence:

The first step is to prepare the foundation. The joints (or other areas) are cleaned of dust and dirt. Then the base must be dried;
when winding the tape, it is necessary to ensure its constant tension. At the same time, the formation of folds and wrinkles is not allowed;
by applying the material, an overlap on the previous layer is provided, which should be at least 50%. As a result of such wrapping, each section of the pipe will be covered with a double layer of tape.

Note! Self-adhesive film does not tolerate exposure to ultraviolet radiation. For this reason, if sewer pipes are located in areas exposed to sunlight, an additional protective layer must be provided.

Silicone based sealant

Most often, silicone sealant is used to seal sewer (and other) pipes. This material has excellent adhesion and easily adheres to any smooth surfaces (metal, ceramics, plastic). In addition, silicone sealant easily tolerates all the harmful effects of aggressive environments and is not afraid of ultraviolet solar radiation.

The composition of the material includes many components, but the main one is synthetic rubber. It is it that is responsible for the main qualities of the sealant.

For sealing joints and other areas sewer pipes two types of silicone sealant are used:

acid;
neutral.

The first option is more expensive. It is more resistant to acidic environments, but should only be used in accordance with the manufacturer's instructions. The fact is that acid silicone sealant is not suitable for all surfaces.

Note! Neutral material can be used for sealing any pipelines and for other purposes. It is considered universal. The only place where its use is undesirable is metal surfaces.

Silicone sealant begins to harden when exposed to air and moisture. Therefore, the started tube must be kept tightly closed. The material is used at temperatures from +5 to +40 degrees. It is simply applied in a thin layer on desired area. After crystallization, the sealant turns into a rubber-like substance. Its layer reliably and permanently seals the desired area, without losing its properties over a long service life.

Other options

If you are thinking about how to seal the joints of sewer pipes, then in addition to the two options listed above, there are others that are no less popular.

We list the main ones:

Epoxy resin. This material is quite widely used for sealing joints.
Portland cement. It is used in the preparation of mixtures for sealing the joints of cast iron sewer pipes.
Asphalt mastic and oil bitumen. It is used for filling joints and sockets of ceramic pipes.
Hemp, jute, resin strand. This material is used for various purposes, including for driving sockets. Most preferred is the use of a combination of hemp or jute ropes and resin impregnation.
Technical sulfur. It is rarely used, mainly for sealing joints of cast-iron pipes. Before use, technical sulfur is crushed and heated to the melting point.

There are other materials for sealing. Various mastics and sealants, woven and liquid materials, but they are used much less frequently.

The traditional method of sealing joints with a socket

For many years, the caulking method has been used to seal sockets. With this method, the sealing material is driven to the depth of the socket up to 2/3. The rest of the space is filled with cement mortar.

A resin rope or a hemp or jute rope is used as a sealing material. To prepare the solution, cement, Portland cement or asbestos cement is taken. In this case, the brand of cement must be at least 400. The mixture is prepared in advance, and water is added immediately before pouring into the joint of the socket.

The process of sealing the socket connection is as follows:

pipes are centered relative to each other;
then, up to a depth of 2/3, the sealing material is tightly laid, while using a special tool - chasing or caulking;
after that, the finished cement mixture is diluted with water and poured into the socket;

In order for the solution to grab better and cracks do not appear on the surface, a damp rag is placed at the junction. Such sealing is quite laborious, but it gives an almost 100% guarantee that there will be no leakage, especially when using cast iron pipes.

Leak repair

If there is a leak in the sewerage system, then it must be urgently fixed. Of course, if the pipes are already very worn out, then it is better to carry out a complete replacement. But sometimes there is no time and money for this. In this case, some tips from professionals will help close the gap or fistula:

If the hole is small, then you can use old way- hammer a small wooden peg. At the same time, you should not make it long. A peg sticking out inside the pipe can cause blockage.
If there is free access to the entire surface of the pipe, then you can use a regular bandage. This material is wrapped around the problem area, and then the bandage is impregnated with epoxy.
You can use a rubber band, additionally securing it with wire.

It is worth remembering that all these methods are temporary. More reliably (and for a longer period) the fistula can be blocked by laying a rubber gasket and then fixing it with a repair sleeve or clamp.

Quite often (especially for products made of cast iron or ceramics), cracks appear on the surface of the pipes. They can be superficial or solid. In the first case, there is no great danger. Odor and liquid do not seep out of the crack. More dangerous are solid cracks.

To cope with this trouble, it is better to use " cold welding". The workflow itself will look like this:

the crack is expanded, while being careful;
the problem area is dried and degreased;
pre-mixed, according to the instructions, adhesive mass is applied, which is allowed to harden.

Cold welding can reliably seal the resulting crack. But still, it is not worth pulling with the replacement of old sewer pipes.

Careful sealing of PVC sewer pipes must be carried out at the construction stage. It is carried out with sealants designed specifically for the drain line. There are several types of them.

Which one to choose for use is decided based on the sewer pipes used for work. Also take into account the method of laying the network. The master conducting the installation work can also choose the type of sealing of PVC sewer pipes.

Sealing is needed for all PVC pipes in the drain network, especially if they run underground. To do everything thoroughly and for a long time, you need to treat the whole process with high responsibility.

Because the inaccuracies exterior finishes easier to fix. But to make a second procedure for a PVC pipeline is possible only with the implementation of a large amount of work. Their scale can be compared with the laying of a new system.

Also, when sealing, it is very important to avoid leaks from the drain pipes. No one doubts the tightness of drain drains. Thanks to this, you can not worry about leaks in the premises.

The next point is the protection of sewer lines from the ingress of various liquids into them, disrupting their stable functioning.

IMPORTANT! If you do not seal the sewer pipelines, or do it incorrectly, then in the near future you will have to redo already ready system again.

Sealant - types and purposes

The concept of sealant includes not only the usual mixtures in tubes with a nozzle, in this context there are more voluminous concepts.

By means of these devices, sewer lines and PVC risers are sealed.

This tape is suitable for any products. Its difference is a long service life and high strength. Of the auxiliary tools for working with self-adhesive tape, you only need to prepare a knife.

The joint where sealing will take place must first be cleaned, then it is degreased and primed with a primer. The tape is applied spirally and with an overlap between layers.

As a result, the coating is formed from two layers. Docking is performed after we have wound the tape. The only disadvantage of this sealant is the poor tolerance of sunlight.

For these reasons, the use of this product on open sewers requires the installation of additional UV protection.

silicone material

Adhesive sealant for PVC silicone rubber pipes can be acidic and neutral. The first type is used on sewer pipes that are not afraid of acid exposure. The second is used for any materials, only it has a higher cost.

ADVICE! Silicone is a highly adhesive material, and is excellent not only for PVC pipes, but also for cast iron and ceramic products.

A special syringe is used to apply the sealant adhesive. The joined sections are thoroughly cleaned of debris beforehand, this is necessary to obtain the highest possible effect.

On the uncleaned basis of sewer pipes, this glue may simply not stick. After hardening, a waterproof and durable layer is obtained.

It will not let any liquid through the joint. These joints are known for their durability and long service life.

Other ways to seal joints on pipes

Sealing pipe joints, in addition to the options described, can be performed in other ways. It should be noted that they also do an excellent job with the tasks assigned to them. More about them below:

Melted bitumen. It is also known under a different name - bituminous mastic. Actions with this sealant do not include anything complicated.
There are other sealants as well. For example: technical sulfur. The cost of this product is not high, and a distinctive feature is a long period of use. Basically, this type is used for cast iron pipelines. Almost the same features as Portland cement. But, in recent years, it has often been replaced serocement or sulfur concrete. These funds can most often be found during the installation of sewer networks at large industrial facilities and in multi-storey buildings.
A special type of sealant is epoxy resin. It is widely used not only for sewer outlets, but also in the construction of various structures where additional impregnation is required. In drain and water supply pipes, this type of material can be found where there are ceramic or cast iron pipes. Compared to PVC pipes, these products need more serious connections. And the advantages of epoxy resin include its resistance to chemicals and longevity. Poorly resists this product only sulfuric and nitric acid, acetone and hydrogen peroxide.
Previously, for finishing on pipelines in everyday life, they set jute which was treated with resin. The action of jute is a bit like self-adhesive tapes. But, the principle of fastening in this case is slightly different. Jutes are ordinary twine, which, after being treated with resinous substances, become very durable. Finishing in this way is characterized by a long service life and high strength.

Sealants for ventilation from PVC materials

A professional master will help with the choice of sealant and quickly and efficiently do all the work. The money spent in this case will be justified by the good work of the exhaust system in the house, and, accordingly, good health its residents.

Sealing PVC sewer pipes, as well as the exhaust system, can be made with any material. The choice in this situation does not play a significant role. All of the proposed options allow you to achieve a highly effective sealing result.

The final decision on the choice of material for work should be made after studying the placement of the network and the type of material used for it.

The most important thing is literacy in the performance of this work, this will be the key to the absence of leaks in such a network for a long period.

July 25, 2016
Specialization: philological education. Experience as a builder - 20 years. Of these, for the last 15 years he led a brigade as a foreman. I know everything about construction - from design and the zero cycle to interior design. Hobbies: Vocal, psychology, quail breeding.

Greetings, my dear readers!

Many people know that when creating and repairing various engineering communications it is important to securely seal all elements. The reliability and efficiency of systems depends on this. Today I will tell you how to choose a sealant for pipes for water supply, sewerage, heating and smoke removal.

Category No. 1: materials for sealing water and sewer pipes

For sewers and water pipes There are several types of seals.

Sealing tapes

Self-adhesive tapes specially designed for sealing pipe joints are a modern means of sealing. They have such merit.

Self-adhesive films are easy to use and have high efficiency.
Sealing tapes on a durable polyethylene base have good performance characteristics.
They are universal, they can be used to seal different types of pipelines (sewer and water), because they have anti-corrosion and dielectric qualities.
Tapes can be used not only for sealing pipe joints, but also for sealing system elements: tie-ins, plugs, corners, etc.

Prepare its surface for winding sealant: it must be cleaned of dirt, dust and dried.
When applying the tape to the pipe, make sure that it is constantly stretched, in addition - do not allow the formation of wrinkles and folds.
Wind the film, creating an overlap of 50 percent in a spiral. As a result of this, the entire surface to be sealed should be under the two-layer protection of the tape.

Plumbing tape does not resist UV light well. As a result, if the sealed section of the pipeline is exposed to the sun, it should be additionally protected from ultraviolet radiation over the film.

Silicone compounds

Silicone-based plumbing pipe sealant is another common sealant. Rubber silicone compounds are a composite of different substances that provide a high quality seal. They have good adhesion to the surfaces to be sealed and do not require pretreatment with a primer.

I want to warn you that according to the type of hardener, silicone sealants for sewer pipes are divided into the following types:

acid compounds. Their price is relatively low. However, they cannot be used to seal certain surfaces that may come into contact with acids.
neutral counterparts. They are universal and can be applied to all types of materials from which pipes are made.

With the help of silicone sealants, both metal and plastic pipes are sealed, but only sewer pipes.

Following the vulcanization of the silicone gel, after its application, it is converted into a material similar in quality to rubber. This process is directly affected by the moisture content in the air.

At the moment, they are of the highest quality, which is why sealants of the Tytan, Moment and Sinicon brands are popular. They are used not only for sealing joints of metal and plastic pipes, but also for repairing fistulas and cracks.

Let me show you how to use them:

Make sure the surface is dry and clean before sealing.
Next, carefully distribute the silicone gel along the junction of pipes or elements of the system.
The composition should not be smeared additionally. Apply it in 2-3 layers, slightly going beyond the borders of both sides of the joint.
It is highly undesirable to moisten the pipe not only before and during work, but also until the polymerization of silicone is completed.

Squeezing and distributing the sealant is extremely simple - using a special mounting gun. If not, you can use a regular hammer.
Insert its handle into the tube and press this kind of piston.

Epoxy resin

It serves, as well as adhesives based on it, the most used means for water and sewer pipes:

In water supply and wastewater systems, epoxy resin is used for cast iron and ceramic piping, which require a stronger mating than plastic counterparts.
The advantages of this sealant include its long service life and resistance to more than fifty chemically aggressive compounds.
"Epoxy" is not resistant only to sulfuric and nitric acids, hydrogen peroxide, methyl ethyl ketone, acetone and fluorine compounds.

Hemp, jute rope

Another common sealant for water pipes made of metal and sewer analogs made of ceramics and cast iron is a jute or hemp rope, as well as a resin strand (kabolka). They are used to seal network sockets. I want to give you advice - the use of resin-impregnated rope is the preferred option.

Previously, only jute impregnated with resin was used to seal household communications. The principle of its operation is the same as that of self-adhesive tapes, but they are fixed in different ways.

Jute is an ordinary twine, tow. However, if it is impregnated with bitumen or resin, it is converted into a durable and strong sealant for sockets of ceramic and cast iron sewers.

Other funds

Cement is a common element in some sealants. It is most often used for the manufacture of asbestos-cement mixtures and for caulking sewer sockets made of cast iron.
Asphalt mastic and an analogue from petroleum bitumen are used for the production of casting compounds. They are needed to seal the joints and sockets of ceramic networks. For different types of pipelines, the following mastics are used: talc-bitumen, asbestos-polymer-bitumen, rubber-bitumen, polymer-bitumen, etc.

Technical sulfur is used to seal the sockets of cast iron sewer pipes. Before using, it must be crushed, then heated until melted. It should be said that this method now rarely used, tk. sulfur has a very pungent and unpleasant odor.

Category No. 2: seals for the heating system

We all have to install a new heating network, change radiators and threaded joint seals shortly before heating season. Find out from my article which sealants can now be used for this.

Linen tow

At the moment, there are many seals for radiators and pipes. heating systems who belong to different generations. One of the oldest sealants is linen tow, planted on paint.

However, this material was good many years ago, now it is of little use. I'll explain why:

Flax is natural, i.e. degradable, hence short-lived sealant. Previously, cast-iron radiators were quietly operated for 40 years. However, now the conditions for the service of heating networks have become different. This sealant will have to be changed after 3-4 years.
The current paints have a composition that is different from what the Soviet counterparts had. They are absolutely not suitable as impregnation of flax fibers. Silicone doesn't work for this either. It contains vinegar, which will corrode the threads.

Modern high-rise buildings are not Khrushchevs with 2-5 floors. During pressure testing (testing pipelines for strength and tightness) and operation of the network of such a building, pressure up to 16 atmospheres is turned on. Linen sealant can be used at pressures up to 8 atmospheres.

As a result, the connections on the linen seal burst due to its swelling or cannot withstand the operating pressure in the heating system.

For apartments in 1-5-storey apartment building linen sealant can be used. There are only a few connections in the dwellings.
IN own house, a cottage, the number of threaded mates on pipes can approach several hundred. It is highly undesirable to use linen sealant in them.

More modern means - polymer threads and anaerobic sealants

The photo shows the sealing of a pipe fitting with a polymer thread.

Linen, planted on paint, is gradually becoming a thing of the past. Now there is a more modern, reliable, safe and durable method of sealing pipes and elements of heating systems. It is based on the application polymer threads and anaerobic gels.

The anaerobic sealant for heating polymerizes in conjunction when in contact with metal, completely filling the entire thread. The connection will last as long as the pipes, without replacements and leaks. He will not be afraid high pressure and temperature, shock and vibration loads.
Polymer threads are also an excellent sealant for threaded assemblies of heating systems. They are suitable for sealing metal, PVC and polypropylene pipes, whose conjugation is undesirable using gel materials. The operating temperature of the threads is not limited, and dismantling is easy.

In the table below, I present to you specifications high-quality anaerobic gels from the Russian company RST (Region Spetstechno).

Name	purpose	Characteristics
Gel "Santekh-master" (green)	Anaerobic sealant for metal flanges and threaded connections up to 1.5 inches.	Polymerization period: 20/30 min. Application temperature from +15º. Dismantling is easy. Volume: tube - 60 g, blister - 15 g. Fork operating temperatures -60/+150º. Ingredients: dimethacrylate polyglycol and modifiers.
Gel "Santekh-master" (blue)	Anaerobic sealant for metal threaded and flanged joints up to 2"	Polymerization period: 15/20 min. Installation temperature from +15º. Removal requires medium force. Volume: tube - 60 g, blister - 15 g. Ingredients:
Stop Master Gel (red)	Anaerobic sealant for metal flanges and threaded connections up to 3 inches.	The polymerization period is 5 minutes. Installation temperature +5º. For dismantling, heating is required. Volume: tube - 60 g, blister - 15 g. Ingredients: dimethacrylate polyglycol and modifiers. Fork operating temperatures -60/+150º.

Category No. 3: sealants for furnace equipment

Furnace equipment may crack due to temperature differences.

What are oven sealants for?

Through cracks can reach the chimney. Then soot on its walls and increased fuel consumption will not be all problems. Harmful combustion products will begin to penetrate into living rooms.
Chimney problems are not as common when made of quality ceramic or sandwich, but they are dangerous. For optimal traction, its channel must be sealed. This directly affects fire safety. Why?
Soot often settles on the chimney walls. If it is not cleaned in a timely manner, it can catch fire with the access of air oxygen. The ignition temperature will be quite high - up to + 1500º. If the thermal insulation of the heated pipe is poor, then the ceilings or the roof will light up.
Incomplete tightness of the chimney channel also leads to the fact that the fire gas burner goes out. This problem is widespread when using gas boilers.

To cover the cracks, as well as join the elements of the channel, it is best to use a pasty chimney sealant. The basis of such materials is different polymers that give different technical characteristics to the sealant.

They are packed in tubes of different configurations and volumes. There are packages that look like tubes of toothpaste. The sealant just squeezes out of them.

Tubes for mounting guns are also produced. In this case, on the cone of the lid, you need to cut off the spout, insert the sealant into the fixture and squeeze out the desired amount of paste using the trigger lever.

Varieties of material

According to the release form, high-temperature seals are divided into two- and one-component.

The first of them must be mixed before use. In most cases, they are used by professional builders.
This is due to working conditions: when mixing components, you need to measure them very accurately. The maximum permissible error is only one gram.

In addition, with an accidental hit and a small proportion of the components into each other, the reaction begins, and the viability of the resulting mixture is only a few hours. Based on all this, for non-professional builders, I recommend using ready-to-use paste sealants.

Oven sealants are divided into two groups according to the area of application and maintained temperatures.

Heat-resistant seals are used for areas that are heated up to + 350º. The scope of their use: external surfaces of fireplaces and stoves, masonry joints (however, not between laying and casting the stove). They are also suitable for sealing joints between hot water and heating systems, sandwich chimneys and bricks with roofing.

Heat-resistant and heat-resistant counterparts are able to resist extremely high temperatures - up to 1500º. The scope of their use in fireplaces and stoves interface areas brickwork and furnace casting. In boilers, they are used in furnaces and combustion chambers. In chimney channels - at seams and mates, including those that go immediately after the outlet pipe.

These pastes can be used in direct contact with an open flame. However, then the sealant must have an additional characteristic on the packaging: “fire-resistant” or “fire-resistant”.

Heat resistant seals

This type of high temperature seals are silicone based. The temperature regime that the composition is able to withstand may vary, based on the exact composition of the paste. So, to increase the thermal resistance, silicone is modified with iron oxide.

Such a paste keeps the temperature well up to +250º, with a short increase to +315º. Iron oxide colors the sealant in a brownish-reddish tone.

Therefore, using a similar composition for a brick oven or fireplace, you will not spoil their appearance, it will not be visible. It can also be used to seal the joints of heating pipes. However, aesthetics suffer here.

Based on its composition, the silicone material can also be neutral or acidic. The latest analogues, drying, release vinegar. As a result, such seals must not be used for corrosion-resistant cements, concretes and metals.

In this case, a reaction occurs between the base and the seal, which leads to the appearance of a layer of oxides or salts, they destroy the tightness. Then the seams and joints cease to play their role, starting to let air and moisture through.

Cement, concrete and metal can be sealed with silicone-based neutral seals, as when cured, they release alcohol and water. The main properties of neutral heat-resistant sealants are below.

UV resistant. As a result, they can be used outdoors, for example for sealing roof penetrations.
Moisture resistance. This parameter makes it possible to use such a composition for chimney channels. For example, to seal the seams and cracks in the passages of the roof, at the junctions of its flooring, to seal the threaded joints when installing heating.
Good adhesion to the base different materials: concrete, brick, glass, metal, plastic, ceramics, wood.
The seal after hardening retains some elasticity, therefore it does not crack with slight vibration and deformation. However, plasticity also has its drawback - paint is not retained on silicone sealant. She peels and cracks.
The drying period of the material can be equal to several hours and several days. This parameter is affected by the composition of the sealant and its storage time. The fresher the sealant, the faster it dries. The drying period is indicated on the packaging.

Manufacturers measure this parameter at a humidity level of 50 percent and a temperature of 23º. Changing their values shortens or lengthens the drying time. The lower the humidity and temperature, the longer the sealant hardens.

The polymerization of the sealant starts from its surface and continues inward, it requires air moisture. Based on this, do not make the seams deeper than necessary, the silicone at the bottom simply may not harden. In this case, the joint or seam will let water or smoke through.

In order for the sealant to have a good adhesion to the base, I strongly advise you to prepare it.

First, clean the surface to the very foundation: remove dirt, dust, salts and oxides.
Then wash it with water and thoroughly degrease.
Silicone-based seals must not be used on damp surfaces. Therefore, before sealing, wait until the base is completely dry.
Silicone seal holds well on a smooth surface. However, to improve the grip, I recommend that you sandblast it, sandpaper it, or some other abrasive. Then wash the base again, wipe with a solvent and dry. Next, you can work with sealant.

All silicone-based oven materials are painted red or brown-reddish.

Heat-resistant analogues

Universal heat-resistant sealant is made on the basis of silicates. The operating temperature regime, which it withstands - up to +1300º, is able to endure short-term exposure to +1500º. This type of furnace sealant can be used in areas where there is direct contact with an open flame. In this case, the packaging of the sealant should be marked: "refractory".

Heat resistant seals are used:

for repair of leaks in heating boilers;
for sealing chimney pipes and sealing cracks in them;
for sealing areas of contact between brickwork and furnace casting;
for sealing fireclay masonry furnaces;
when installing a chimney from sandwiches, it is also highly desirable to coat their modular joints with a similar agent.

The exception is pyrolysis and condensing boilers, at the outlet their smoke temperature is up to +150º. Here you can use heat-resistant seals.

When it is planned to make a chimney channel or another element collapsible, apply sealant only at the joints. By loosening the two sections and crumbling the seal, you can separate them.
If you apply a layer of the agent to the entire surface, then the structure will become monolithic. You can't take it apart without damaging it.

Silicate-based materials have good adhesion to stone, brick, concrete, metal, cement mortar. However, I warn you that they are not firmly held on a smooth plane, as a result of which such surfaces require abrasive processing before applying the sealant.

I also want to note one point - it is possible to apply a sealant only at a range of positive temperatures: +5 / +40º. The best option- temperature not less than + 20º, in this case the composition dries faster.

Once cured, the heat-resistant composition creates a strong and rigid, i.e. non-elastic seam. Based on this, silicate sealants can be used in areas that are not subject to vibration or are subject to it to a small extent. Otherwise, the material will crack.

However, non-plasticity has its plus - it makes it possible to paint the sealant. The silicone composition is distributed using a mounting gun and a thickness of not more than one centimeter.

I ask you to turn Special attention that some types of heat-resistant seals, once on the skin, are capable of causing chemical burns. Based on this, when working with your own hands, wear rubber gloves on them and be careful.

Fire-resistant and heat-resistant oven sealants are painted in black or gray. They don't have any other colors..

They are not pure sealants, but a sealing adhesive.
These funds are transparent, they can withstand extreme temperatures up to + 200º.
Such compositions are chemically neutral, i.e. they do not react with salts and acids. The period of their drying is not affected by humidity and temperature. Thanks to this, they can be used outdoors and in the winter season.
Sealing adhesives are waterproof. Therefore, they can be used in rooms with high level humidity - in the shower, bath, bath, etc.
The relative disadvantage of such compositions is that they are not high-temperature.

Of these seals, I can recommend Soudal's "Fix All" sealing adhesive. It does not directly relate to heat-resistant counterparts, but it is perfect for repairing leaks, cracks in heating networks, as well as hot water supply, both in the pipes themselves and in fittings.

Popular brands of funds

Almost always, manufacturing companies write on the packaging of heat-resistant sealants their main purpose. For example: "sealer for chimneys, fireplaces and stoves." So, with a choice you will not be mistaken.

Soudal-C. The Belgian company Saudal manufactures a diverse range of sealing materials. Among them are heat-resistant analogues, there are also heat-resistant stove, fireplace seals "Soudal-Calofer". Such compositions are painted in black.

Penosil manufactures Penosil/+1500, a heat resistant oven sealant. It is black in color and can withstand temperatures up to +1500º. It polymerizes within 15 minutes.
The company also has heat-resistant analogues of red color, holding temperatures up to + 300º. They are acidic, so they cannot be used for concrete, cement and metal.
In the middle price segment, you can also find seals that are of good quality. For example, heat-resistant sealants of the Tytan and Bau-Master brands.

Under the Titan brand, the Selena-Group group of companies from Poland produces professional-grade building and finishing materials, including oven sealants. They are standardized and certified by DIN and ISO No. 9001.

Tytan's high temperature seal is modified with fiberglass to give the material a high degree of gas and smoke impermeability. It is able to withstand temperatures up to +1250º. This composition is suitable for chimneys and stoves.

Output

Without pipe sealants, the effective operation of many engineering networks is impossible. Depending on the type of network, you should use different types seals.

If you watch the video in this article, you will know Additional information. Ask your questions in the comments.

So I say goodbye, and success to you in your endeavors!

July 25, 2016

If you want to express gratitude, add a clarification or objection, ask the author something - add a comment or say thanks!

What is a sealant for cast iron sewer pipes and how to choose the right material for sealing joints? One of the main tasks facing the master at the final stage of construction is to prevent leaks that appear in the sewer system.

Sealant for sewer pipes must be selected, given the fact that it has a significant diameter and a large length.

Sealing of sewer pipes is necessary to prevent the penetration of sewage into the apartment and eliminate bad smell in residential areas.

Solving the problem of sealing joints must be taken quite seriously.

By identifying the cause of the malfunction that interferes with the operation cast iron pipe, the host can spend the whole cycle necessary work to eliminate it.

The causes of pipe leaks are varied:

defect in the material used to install the sewer;
improper laying of cast-iron segments;
the presence of cracks and holes in the riser.

Types of insulating material: self-adhesive tapes and their properties

As for the choice of insulating material, special anti-corrosion tape coatings should be used here. With their help, joints between pipes are sealed, coupling units, tie-ins, bends related to the sewer system are sealed.

Silicone sealant

Sealing of joints is carried out using silicone adhesives made in accordance with TU 6-15-1822-95, GOST 6-02-4-53-96.

The silicone insulating material is a rubber-based composition consisting of a filler, a hardener and a catalyst. The vulcanization temperature of the material is in the range from +60 to +200˚С.

Silicone sealant for repairing pipes in the sewerage system has a density of 2.0 g / cm³, dries at a temperature of + 20 ° C in 150 minutes. The characteristics of tensile strength are even more diverse, ranging from 16 to 20 kgf / cm² and depending on the brand of material.

The peculiarity of the sealant is that the vulcanizer has high adhesion to steel, copper, aluminum, silicate glue, concrete. Silicone sealant is resistant to adverse weather conditions, solvents, synthetic and mineral oils.

No contamination occurs during pipe repair environment toxic substances, since silicone materials belong to the 4th class of low-hazard agents. Sealant is used for gluing and sealing joints and connectors in the repair of sewer pipes.

Additional means for sealing pipes

When sewer equipment becomes unusable, it is repaired with technical sulfur. What is the mechanism of its action? The material is first melted in an electric furnace at a temperature of 130-135˚С, and then it is poured into the socket. Unfortunately, the repair may be of poor quality if it was not possible to fill it at once.

Special precautions will help to avoid unpleasant consequences when working with sulfur, since the sealant is easily spilled, and careless handling leads to a chemical burn.

Insulation is performed using petroleum bitumen. It is not difficult to seal the riser from the inside and outside, and after the work done, the operational life of the equipment is significantly increased and its efficiency increases.

After the oil bitumen coating of the inner surface of the pipes, the coefficient of friction of the liquid medium decreases and the fluidity of the effluents enclosed in the sewer pipe increases.

Epoxy resin is the most common material for. The joint is sealed by pouring resin into the gap, and can be used hot or cold for permanent results.

When working with Portland cement, it is necessary to apply the mixture over the joint.

Tools and materials for working with sealant

As for working on, the whole process requires competent, balanced actions from the master. After all, it is precisely the right tools and materials that allow sealing in the shortest possible time.

The following resources must be purchased in advance:

flax fiber;
paint;
steel brush;
petrol;
rag.

Having identified the cause of the defect, the owner proceeds to seal the sockets, using the following tools for work:

hammer;
cold chisel;
iron pot;
tripod
asbestos funnel;
thermometer;
a set of caulks;
iron cauldron.

To work with silicone insulating material you will need: a paint knife, a chisel, a scraper, staples, a glue gun, a brush, a cutter, toilet paper, a spray bottle, soap, a brush for spraying the solution. A similar approach to selection necessary tools will allow to carry out work qualitatively and in a short time.

Using glue for sewer pipes

Sewer equipment, significantly worn out, with numerous damages, is repaired using epoxy resin. The material is necessary to eliminate leaks when performing pipe repairs.

Through cracks found after inspection of the equipment are sealed using a two-component adhesive composition. The mixture is prepared immediately before use, following the manufacturer's recommendations.

A detailed inspection shows that it is quite easy to eliminate the leak if epoxy resin is used for sealing. The composition is used in combination with a hardener, and the ratio of components for the formation of a working mixture is 1:2 or 1:1.

The polymerization reaction proceeds much faster with an increase in temperature by 10˚ C. The sealing of the formed cracks is quite strong, since the epoxy composition has minimal shrinkage, high resistance to adverse factors, and stable physical and mechanical characteristics.

Epoxy adhesive is obtained by mixing the resin and hardener in a ratio of 1:10, and distilled water is used to form a composition with a water-borne resin.

Thus, observing, it is possible to qualitatively carry out work related to the repair and planned replacement of equipment.

The main problem in the operation of pipelines from various materials- the possibility of leaks at the junction of individual elements of the line. Particularly acute is the question of how and with what the sealing of sewer pipes, which usually have a socket design, should be performed.

Separately, it is worth noting the need to dock elements of sewer lines from dissimilar lines, inserting individual branches in which it is impossible to use standard fittings. These sections of the pipeline are considered the most problematic, while the solution to the problem may differ both in cost and in the complexity 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 high-quality materials), it will solve two main problems:

Prevention of leakage of sewage into the ground. The main task is not only to comply with environmental safety standards, but also to eliminate the possibility of flooding of the underground parts of buildings (basements, basements).

Equally important is the elimination of leaks and hits ground water or parts of the soil in sewer system. Ground water can seriously damage the flow of effluent through the pipeline, in addition, there is the possibility of sewage silting.

Eliminating the consequences of any of these problems will require a considerable amount of work. At the same time, the costs of excavation associated with the opening of the highway, practically do not differ from the cost of laying a new line. Therefore, it is economically feasible to purchase materials for sealing sewer pipes, and not spend money on emergency response work.

The main types of sealants

It should be taken into account that most types of polymer pipes do not require additional insulation due to the use of rubber butt seals. Basically, means of sealing sewer pipes are needed when laying cast-iron or ceramic lines. The installation of elements of such highways requires the obligatory presence of the so-called expansion joint, which makes it possible to maintain the integrity of the pipes with some ground movements.

Whatever sealant for sewer pipes is chosen, it is necessary to follow the technology of its application, otherwise the use of even expensive materials can bring 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 ones, have been added to the list of sealing compounds.

All existing sealants can be divided into two main classes:

Means 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 fittings and individual sections of the pipeline. They are used not only during the installation of sewerage, but also when performing a tie-in in the highway, carrying out emergency recovery work, and eliminating emergency leaks.

Pasty materials based on various silicone rubber. Differ in high sealing ability, are capable to provide resistance to possible deformations. In the process of polymerization, silicone sealants turn into a rubber-like substance, which is highly resistant to various influences.

They 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, provides reliable sealing of the elements.
Acid silicone is necessary for the construction of highways working with aggressive environments.

Sealing sewer pipe joints with silicone is different affordable cost, while ensuring guaranteed quality and durable operation of the joint, today this material is most popular both among professionals and in solving various domestic issues.

This type of sealant is a metallized tape on a bitumen-rubber base. An aluminum or copper layer provides sufficient strength and sealing reliability.

To achieve the required connection quality 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; the tape simply will not stick on a dusty or damp surface.
The wrapping should be done in a spiral, with an overlap of approximately 50%, this will allow for two layers of tape to cover the entire surface.
The wrapping should be carried out with a significant stretch of the self-adhesive, this will prevent the possibility of its spontaneous sticking after the removal of the protective layer and ensure the uniformity of the coating (the absence of wrinkles and other defects).

To date, self-adhesive tapes for sewer pipes are considered the easiest material to use, while they provide a high degree of sealing of joints. various types. Allow to significantly simplify the elimination of emergency leaks.

Liked the article? Share it

Print article