Sazilast sealants: types and technical characteristics

Sazilast sealants: types and technical characteristics

In construction, situations often arise in which it is necessary to ensure the tightness of the surface. There is a huge range of sealants on the modern market. Products of the Sazilast trademark are in great demand. What are the sealants of this company, what types of products the manufacturer produces, what properties each sample has, this article will tell.

About the manufacturer

The SAZI company, which produces Sazilast sealants, has been producing insulating and sealing materials for over 25 years. It is one of the largest manufacturers of this type of product in Russia. The client of the company is such a giant of the domestic industry as Rosaviakosmos, as well as factories of the electronics industry, the military-industrial complex, large construction companies.

The products of this manufacturer are in demand both among small repair companies and among individuals.

Features and Benefits

Each Sazilast sealant is a substance that, after being applied to the surface, begins to evaporate water. This triggers the vulcanization reaction. The result is a fairly hard rubber-like material. It is not affected by acids and alkalis, perfectly protects the surface from moisture penetration. Such material is not afraid of ultraviolet radiation, as well as various vibrations..

Sazilast sealants have a number of advantages that explain their popularity..

  • The quality of the products meets the highest requirements, which is why it is used in the space industry. Brand materials have an international quality certificate.
  • A large product line allows you to choose the building material according to your needs.

  • The manufacturer’s sealants retain their properties for more than 15 years..
  • The products perfectly tolerate changes in temperature and humidity..
  • Products can be applied to damp surfaces without fear of water film.
  • The compositions have good adhesion to concrete, wood, aluminum, brick, building stone.
  • The resulting coating does not flake off the paint.
  • Compositions are elastic, suitable for surfaces with slight deformation.
  • The products are available in various containers. You can choose a plastic cartridge with a capacity of 0.31 l, a tube with a volume of 0.6 l, a plastic or metal bucket weighing up to 15 kg.


9 types of various sealants are produced under the Sazilast trademark.

They can be divided into two main groups, differing in technical characteristics:

  • for foundation and roofing works;
  • for facade works.

The first group can be attributed to substances that are subject to increased requirements. Their main components are polysulfides. This includes two-component sealants “Sazilast-51”, “Sazilast-52”, “Sazilast-53”. At the same time, products with numbers 51 and 52 are particularly good at withstanding the negative effects of UV rays, so these samples are excellent for sealing roofs..

If we compare the fluidity of these types, then the product at number 52 is more liquid. It is often used to seal hard-to-reach areas. Sazilast-51 sealant withstands temperature extremes better. It can be applied at temperatures ranging from -15 to +40 degrees, and after hardening, the material can be operated in the range from -60 to +70 degrees. Sazilast-53 is more suitable for foundation work. It perfectly tolerates high humidity, it can stay in water for some time.

The second group includes products numbered 11, 13, 21, 22, 24, 25. Among these sealants, it is worth highlighting material number 11. It is a one-component acrylic substance. “Sazilast-11” is used both indoors and outdoors, including for finishing balconies and tile joints. This product is easy to apply, even a person who has not dealt with sealants before can handle it..

“Sazilast-21”, “Sazilast-22”, “Sazilast-24” – two-component compositions based on polysulfides. They are used on surfaces with a deformation of up to 25%. Product number 21 has additional UV protection so it can be used on surfaces exposed to direct sunlight. The most temperature-resistant material in this group is “Sazilast-22”.

“Sazilast-13”, “Sazilast-25” – two-component compositions based on polyurethane. They are very plastic, they are used to seal surfaces, the deformation of which is up to 50%. In this case, product number 13 can be used at the same temperature regime as sample number 51.


Sazilast sealants are very popular. Buyers who preferred the materials of this company say that the products are of high quality, are easy to apply, quickly set, provides reliable adhesion to materials, and does not peel off over time..

Particularly noted is the versatility of the two-component product number 13, which can be used both inside and outside buildings..

In the next video, you will see the sealing of interpanel seams with Sazilast polyurethane sealant..

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