During the last 70 years fire protection of structures is inherently connected for the sake of the improvement of fire-prevention standards, on the means of an increase in the actual fire resistance of structures and for the sake of reduction in the combustibility of the materials of the propagation of fire on them.

Before the contemporary practice of building wide acceptance obtained the metal constructions, which possess high strength, relative ease, longevity. However, under the action of high temperatures with the fire they are deformed, they lose the stability, which carries ability. Their deformation and loss of the bearing capacity as a result of fire leads down caving of building. Therefore fire protection of the metal constructions, utilized before the building, is one of the vital problems of an increase in the fire resistance of buildings and construction.

Before the 21- ohm century development stage of society is characterized as far as the progressive urbanization, which leads down the concentration of business- centers, supermarkets, prestigious hotels, habitable buildings and cultural centers before the limited urban territory. The special feature of fire hazard for the people, which are located before these buildings, consists before the fact that the evacuation of people here considerably hinders in comparison with the low houses, and the complexity of fire control also grows.

For the multistory buildings are characteristic the rapid development of fire on the vertical line and the intensive smoke-screening of the upper levels, the large complexity of guaranteeing of evacuation and rescue operations.

The analysis of the consequences of fires before the skyscrapers showed that the factors, which facilitate the tragic course of events, were:

• the insufficient fire resistance of structures and of engineering equipment;
• the blocking of evacuation routes by products of combustion; the presence of the large internal volumes, not divided by fire barriers;
• the device of central air conditioning with the numerous channels;
• the device of suspension ceilings;
• the large number of combustible equipment, furniture, revetments.

These circumstances, and also large number of people, which are located before the accomodations, specify the need of applying the package of measures for fire protection of the component parts of such critical piece as high-rise building.

Thus, fire protection of constructions is the component part of the general system of measures for the guarantee of fire safety and fire resistance of the objects of building.

At present there are three types of the fire-retardant coatings:

1. Closegrained coatings
2. Closegrained distending themselves coatings
3. Coatings

The application of paints, which form closegrained coatings, is most common before the practice of fire protection of the metal structures of buildings. The shielding function of such coatings consists before the creation beyond the surface of the elements of the metal constructions of the cellular screens, which were being formed in the process of action of flame the distending itself layer, which makes it possible to slow down the heating of metal and to preserve the bearing capacity during the assigned period of time.

During the distention the non-burning gases, which leave the thick layer of carbonaceous foam-isolation, which is the coked fusion are separated.

In privately held company “[NPO] Of [korrZashchita]” are developed the new effective distending themselves paints “[UNIPOL]- FIREPROOF” ([UNIPOL] stamp [o]) and “[INTUMESTERM]” for fire protection of metal structures beyond the acrylate basis. Paints are the single-component system, ready to putting by brush, by roller and by the mechanized method of airless or pneumo- dispersion.

One of the advantage of the fire-retardant [intumestsentnykh] paints “OF [UNIPOL]” is the temperature of the application of coating. The temperature range of putting composes from minus of 25o[S] to plus of 35o[S]. This speaks, that to use our compositions is possible practically the year round that one cannot fail to estimate, taking into account climatic temperature conditions in our country!

In [ITS] “varnish color” were carried out the tests on the study of the time of drying coating with a thickness of 300-350 m down the degree “1”, “3” depending on temperature were obtained the following results:

Temperature of air, deg. [s]	Time of drying down the degree “1”	Time of drying down the degree “of 3”
40	5 min	0,5 h
30	10 min	0,5 h
20	10 min	1 h
10	20 min	1 h
0	1 h of 30 min	2 h
-5	1 h of 30 min	4 h
-10	1 h of 30 min	4 h
-15	1 h of 30 min	4 h
-25	1 h of 30 min	4 h

Our compositions satisfy the requirements of fire protection, ecology (slide with the certificates) and operation of structures, but so they do not worsen the aesthetics of the materials of utilized in the accomodations for the finishing interiors.

“[UNIPOL]- FIREPROOF”, substituted down the steel columns of double-T profile cross section № 60 (given thickness of metal 7,4 mm) with the thickness is not less than 2,45 mm and the expenditure of 3,5 kg/sq. m. ensures the limit of fire resistance not less than 1,5 hours.

“[INTUMESTERM]”, substituted down the steel columns of the double-T profile cross section of № 20 (given thickness of metal 3,4 mm) by the thickness is not less than 1,2 mm and the expenditure of 1,8 kg/sq. m. it corresponds to the 4-[oy] group of effectiveness on [NPB] 236-97.

“[INTUMESTERM]”, substituted down the steel columns of the double-T profile cross section of № 20 (given thickness of metal 3,4 mm) by the thickness is not less than 1,75 mm and the expenditure of 2,6 kg/sq. m. it corresponds to the 3rd group of effectiveness on [NPB] 236-97.

Fire-retardant coatings possess grow prettier by compatability with the anticorrosive materials “OF [UNIPOL]”. This makes it possible not only to ensure fire protection of metal structures, but also to protect from the aggressive environmental effects (atmospheric, chemical and other actions).

The materials “OF [UNIPOL]” adapted on such objects, as the oil-refining enterprises joint stock company “[LUKOIL] - [Nizhegorodnefteorgsintez]”, joint stock company “By [sibur]-[Neftekhim]”, [Meshcherskoe] Linear- production control and [Mokrusskoe] Linear- production control. On the point of the pouring in of oil g. Of [uyar] the application of coating was accomplished at minus temperatures of -15[S]^.

^{The positive qualities of the fire-retardant materials “OF [UNIPOL]” were [proverenny] not only in practice. The paints “OF [UNIPOL]” stamp according to “[Intumesterm]” obtained gold medal before the competition, that were being carried out by the organizers of the exhibition “Of [interlakokraska]” in 2006 as the best fire-retardant coatings.}

^{Thus, presented to your attention materials satisfy purposeful and operating requirements RF. The major advantages of our materials in comparison with others commercially available are:}

• ^{high fire-retardant properties;}
• ^{the possibility of the complex protection of constructions from the fire;}
• ^{the possibility of application at minus temperatures and before open air.}

^{Application of the fire-retardant distending itself paint “OF [UNIPOL]” stamp [o] for the carrying steel constructions on the object joint stock company “[LUKOIL] - [Nizhegorodnefteorgsintez]”}