Careful sealing of PVC sewer pipes should be completed during the construction phase. This is done using sealants designed specifically for drain lines. There are several types available.
The choice of which method to use is determined by the sewer pipes being used. The installation method is also taken into account. The installation technician can also select the type of sealing for PVC sewer pipes.
Sealing is essential for all PVC pipes in the drainage system, especially if they run underground. To ensure a thorough and long-lasting seal, the entire process must be approached with the utmost care.
Because imperfections in external finishes are easier to correct. However, repeating the process for PVC piping requires a significant amount of work. The scale of the work is comparable to installing a new system.
It's also crucial to prevent leaks from drain pipes when sealing. The tightness of drain pipes is unquestionable. This means you don't have to worry about leaks in your premises.
The next point is the protection of sewer lines from the ingress of various liquids that disrupt their stable functioning.
IMPORTANT! If the sewer pipes are not sealed, or if they are not sealed correctly, the existing system will have to be redone in the near future.
Sealant - types and purposes
The concept of sealant includes not only the usual mixtures in tubes with a nozzle; in this context, more comprehensive concepts are located.
These devices are used to seal PVC sewer lines and risers.
There are different types of sealant used for PVC sewer pipes.PVC pipes have successfully replaced steel products that had been used for many years.
Thanks to their numerous positive characteristics, PVC products quickly gained popularity among consumers. Among the advantages of these products is their ease of installation and maintenance.
The most commonly used sealing products that maintain the proper functioning of sewer system components include tapes, silicone, techsulfur, Portland cement mortar, epoxy resin, resin strand, asphalt bitumen, and others.
When using any of these methods, you must strictly adhere to the required technology. Otherwise, you may not achieve the desired result.
Sealing tape
PVC sewer pipe sealing tape provides excellent corrosion protection for pipe joints. It is also used for:
- coupling joints;
- bends;
- inserts.
This tape is made from a base of bitumen and rubber. It also contains a thin layer of aluminum or copper.
This tape is covered with a protective film that is removed during installation. Working with this material is straightforward, as it is self-adhesive.
This tape is suitable for any product. It boasts a long service life and high strength. The only tool required for working with self-adhesive tape is a knife.
The joint where the sealing will take place must first be cleaned, then degreased and primed. The tape is applied in a spiral pattern, overlapping between layers.
The resulting coating consists of two layers. The joining is done after we apply the tape. The only drawback of this sealant is its poor sun exposure.
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For these reasons, the use of this product on open sewer pipes requires the installation of additional UV protection.
Silicone material
Silicone rubber sealant for PVC pipes comes in two varieties: acidic and neutral. The former is used on sewer pipes, which are resistant to acid. The latter is suitable for all materials, but is more expensive.
ADVICE! Silicone is a highly adhesive material and is ideal not only for PVC pipes, but also for cast iron and ceramic products.
A special syringe is used to apply the adhesive sealant. The areas to be joined are thoroughly cleaned of any debris beforehand to ensure maximum effectiveness.
This adhesive may simply not adhere to uncleaned sewer pipe surfaces. After curing, it creates a waterproof and durable seal.
It will not allow any liquid to pass through the joint. These joints are known for their durability and long service life.
Other methods of sealing pipe joints
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In addition to the options described above, pipe joints can be sealed using other methods. It's worth noting that these methods also perform their intended functions well. Below are more details:
- Melted bitumen. It's also known by another name—bitumen mastic. Using this sealant is straightforward.
- There are other sealants, too. For example: technical sulfurThis product is inexpensive and has a long service life. This type is primarily used for cast iron pipelines. It has almost the same characteristics. Portland cementBut, recently it has often been replaced serocement or sulfur concreteThese tools are most often found during the installation of sewer networks at large industrial facilities and in multi-story buildings.
- A special type of sealant is epoxy resinIt is widely used not only for sewer outlets but also in the construction of various structures that require additional impregnation. In drainage and water supply systems, this type of material can be found where ceramic or cast iron pipes are installed. Compared to PVC pipes, these products require more robust connections. The advantages of epoxy resin include its resistance to chemical reagents and durability. This product has limited resistance only to sulfuric and nitric acids, acetone, and hydrogen peroxide.
- Previously, for finishing on pipelines in everyday life they used jute, which was treated with resin. Jute works somewhat similarly to self-adhesive tapes. However, the fastening principle is slightly different. Jute is ordinary twine that becomes very strong after being treated with resinous substances. Finishing this way is characterized by a long service life and high durability.
Sealants for ventilation made of PVC materials
No home can function without a ventilation system. The primary purpose of these structures is to remove polluted air from the premises and supply fresh air. Until recently, such systems were constructed of galvanized steel.
These days, this material has been successfully replaced by plastic products, which have quickly become very popular with consumers. The advantages of exhaust ducts are as follows:
- high corrosion resistance;
- high wear resistance;
- long time of use;
- ease of installation.
Sealing such a system is a crucial step during construction. PVC pipe ventilation sealant prevents air from escaping from the joints.
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The importance of such a criterion as ventilation tightness is due to the following reasons:
- Reduced air permeability negatively affects the normal functioning of the network and creates difficulties in its maintenance.
- Air loss must be compensated for by increasing the equipment's performance; otherwise, the indoor microclimate deteriorates. This leads to poor health and decreased productivity for those living in the home.
- Sealing the ventilation network allows you to reduce electricity costs and reduces the load on the equipment.
- Condensation forms on an exhaust system that is not sealed when passing through a cold room.
For ventilation of plastic pipelines A regular sealant will do. If there are any problems or concerns, it's best to leave this work to professionals.
A professional technician will help you choose the right sealant and complete the job quickly and efficiently. The money spent in this case will be justified by the efficient operation of the home's exhaust system, and consequently, the improved health of its residents.
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Sealing PVC sewer pipes and exhaust systems can be done with any material. The choice in this situation is not critical. All proposed options provide highly effective sealing.
The final decision on choosing the material for the job should be made after studying the network layout and the type of material used for it.
The most important thing is to carry out this work competently; this will guarantee the absence of leaks in such a network for a long period.
