Thick steel structure fireproof coating is a type of thick coating fireproof coating designed and produced for fire-resistant steel structural components ranging from 5.5 to 25 levels. Where is the thick steel structure fireproof coating? Now let's take a look at the three highlights of thick steel structure fireproof coatings.

Firstly, thick steel structure fireproof coatings have a longer fire resistance time: the key point of fireproof coatings is the fire resistance limit, which is the general fire resistance time. Apply a thick layer of steel structure fireproof coating on the surface of the steel structure. During a fire, the non flammability and low thermal conductivity of the coating form a fire-resistant insulation protective layer, which increases the fire resistance limit of the steel structure. After spraying thick steel structure fireproof coating on the surface of the steel structure, a fireproof insulation protective layer is formed depending on the non flammability and low thermal conductivity of the coating, effectively improving the fire resistance limit. E-shaped steel structure. According to national standards, the fire resistance time of thick steel structure fireproof coatings can reach 3 hours.

Thick steel structure fireproof coating manufacturers are healthy and environmentally friendly: regardless of the region, health and environmental protection are eternal themes. Three types of fireproof coatings for steel structures: thin, thin, and thick. Only thick steel structure fireproof coatings are based on the principle of inorganic compounds. The advantage of inorganic compounds is that they do not produce chemical reactions, and their physical principles are fire-resistant and heat-insulating. Thick steel structure fireproof coating has the non corrosiveness of steel, no chemical reaction with any anti-corrosion primer, no irritating odor, light coating weight (light structural load, light weight), large coating area, no smoke, and no harmful gas release. There is no harm to the human body. It is a non-toxic and healthy fireproof coating.

The prospect of thick steel structure fireproof coating manufacturers is promising: only with better development based on the premise of products, in recent years, with the rapid development of the construction industry, various steel structures have sprung up like mushrooms, rising in all directions, and thick steel structures. The demand for fire-resistant coatings is increasing year by year. In this context, the development prospects of thick steel structure fireproof coatings will also become increasingly better.

The coating thickness of thick steel structure fireproof coating (Class H) is 7-45mm, which presents a granular surface with low density. The coating does not foam when heated and relies on its low thermal conductivity to slow down the temperature rise of the steel structure, providing fire protection. The fire resistance limit can reach 0.5-3.0h, and this coating is commonly referred to as steel structure fireproof and thermal insulation coating. Two types of coatings have different performance characteristics and are suitable for different occasions. All steel structure fireproof coatings are divided into two types of use: indoor and outdoor.

According to GB14907-2002 "General Technical Conditions for Steel Structure Fireproof Coatings", steel structure fireproof coatings can be classified into three types based on their coating thickness and performance characteristics: ultra-thin, thin coating, and thick coating. The coating thickness of ultra-thin steel structure fireproof coating (Class CB) is not more than 3mm, and the coating thickness of thinly coated steel structure fireproof coating (Class B) is 3-7mm. These two types of coatings can absorb heat, expand and foam in case of fire, forming foam like carbonized insulation layer, thus preventing heat transfer to the steel structure, delaying the temperature rise of the steel structure, and playing a role in fire protection. These two types of coatings are commonly referred to as steel structure expansion fireproof coatings.

1.When selecting, the requirements of the building's environment and usage nature are often overlooked.

2.When outdoor steel structures are exposed to sunlight and rain, or when transparent panels are used on the upper part of the top steel structure of high-rise buildings, and the environmental conditions are harsh, outdoor steel structure fireproof coatings should be selected. The fourth is to use coatings with technical performance that only meet indoor requirements for outdoor use. Designers often simply indicate the use of steel structure fireproof coating protection measures, without detailed explanation of which type of steel structure fireproof coating to choose. In construction, they only consider issues such as price and aesthetics, resulting in improper selection of fireproof coatings.

3.Ultra thin steel structure fireproof coatings have become a hot topic for research and production units in China's steel structure fireproof coatings. Ultra thin steel structure fireproof coatings are generally solvent based systems. Compared with thick and thin coated steel structure fireproof coatings, ultra-thin steel structure fireproof coatings have better decorative properties, thinner coatings, and greatly reduced usage in engineering, thereby reducing the total project cost. They are currently widely promoted in the market.

There has been a one-sided pursuit of thinner coatings and a one-sided promotion of ultra-thin coatings in steel structure fire protection engineering, which is extremely detrimental to providing practical and reliable safety guarantees for buildings. Due to the fact that ultra-thin steel structure fireproof coatings mainly rely on the physical and chemical reactions of organic components in the formula, any factors that affect the carbonization and expansion properties of the coating will affect its final fireproof performance, making it difficult to ensure that it can provide fire protection for components for more than 2.0 hours after a long period of coating. Tianjin fireproof coating manufacturer