Detailed explanation of construction method of fire retardant coating

Fire prevention has always been a topic of concern to us, especially now the chemical industry is developing faster and faster, and many new products have appeared, which are very flammable. Therefore, if you don't pay attention, it is easy to have a fire. Now fire retardant coatings can play a very good fire prevention effect. Fire retardant coatings are mainly materials coated on the surface of objects. This material can not only prevent fire, but also prevent the fire from spreading. Therefore, fire-retardant coatings are paid more and more attention in our lives. Then Bian Xiao will tell you about flame retardant materials.

Construction method

The first construction method is scraping method:

Metal or nonmetal hand scraping tools such as glass fiber reinforced plastic scraper, horn scraper, plastic scraper and hard rubber plate are often used to scrape off redundant parts such as thick slurry fire retardant coating or cracks on the surface of objects.

The second construction method is roller coating:

Roller coating method is generally suitable for wall construction. Apply the paint on the roller, then roll it back and forth on the wall and stick the paint on the wall. The drum we are talking about is a hollow cylinder with a small diameter, and the surface is stuck with long fluff made of synthetic fibers. There are two washers at both ends of the cylinder, and there is a hole in the middle, through which the curved handle passes. Now the technology has improved, and roller coating equipment with air compressor to transport paint has appeared.

The third construction method is brushing:

Brush coating method is not only suitable for wall construction, but also for the surface of any other shape objects, and most fire-retardant coatings can be constructed in this way. Brush coating is also very good at applying paint to tiny holes and cracks on the surface of objects, so it can strengthen the adhesion to the surface of objects. However, its production efficiency is low, labor intensity is high, and sometimes there are brush marks on the surface of the coating, which affects the decoration of the coating.

The fourth construction method is spraying:

The paint is atomized by a spray gun and sprayed on the surface of the object. The sprayed coating has uniform quality and high production efficiency. However, some paint will be wasted in the construction process, and at the same time, due to the evaporation of a large number of foggy solvents, it is not conducive to healthy operation. The key equipment of air spraying is spray gun. Spray guns are usually divided into three types according to the supply mode of paint: gravity type, suction type and pressure type, and they are also divided into small and large types according to the spraying ability. The paint has high viscosity and needs high air pressure, so the nozzle should be large in diameter; The paint has low viscosity and low pressure, and the nozzle can choose small caliber.

Matters needing attention

First, pay attention to whether the purchased fire retardant coating is qualified. ? Only qualified fire retardant coatings can prevent fire after painting. Unqualified fire retardant coatings not only fail to prevent fire, but also may promote combustion.

Second, pay attention to whether the fire retardant coating construction team has relevant qualification certificates. ? According to the technical specification for application of fire retardant coatings for steel structures? CECS24∶90, the fire retardant coating construction team should meet the following requirements: the fire prevention and spraying protection of steel structures should be carried out by trained and qualified professional construction teams. The safety technology and labor protection requirements in the construction shall be implemented according to the current relevant regulations of the state.

Third, pay attention to the selection of fire retardant coatings.

As can be seen from the above information, during the construction, the fire-retardant coating is evenly painted on the surface of the object to be constructed, so as to take fire prevention measures for the object to be constructed. Because of its good flame retardant effect, it is widely used in factories, buildings and other places. However, fire retardant coatings can be divided into many categories, and their construction methods are also different. Therefore, before construction, we must fully understand the construction methods of fire retardant coatings, so as to correctly use different types of fire retardant coatings and give full play to their functions. The above is the information about fire retardant coatings for everyone to share.

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