Fires in enterprises are most commonly caused by reasons such as the rotting of distribution cabinets, aging of electrical lines, equipment short-circuits, and improper operation of electrical equipment. The main reason is that as the awareness of steel structure fire prevention increases, people are also beginning to value the fire prevention capabilities of steel structures. Using fire-resistant coatings on steel structures is convenient and simple, and thus has been widely adopted. However, with more people using them, issues have arisen. Since many are not familiar with steel structure fire-resistant coatings, there's a possibility that the purchased coatings may not be up to par. (1) Check whether the product has a qualified inspection report issued by the Fire Control Quality Inspection Center, and you can also search online. Currently, fire-resistant coatings are subject to the type recognition system for fire products, and fire-resistant coatings sold on the market should have a national type recognition certificate for fire products and a type inspection report of qualification. (2) According to national standards, in addition to meeting fire resistance requirements, the combustion performance of fire-resistant coatings is classified into Level 1 and Level 2. Under specified test conditions, the combustion resistance time of Level 1 fire-resistant coatings should not be less than 20 minutes, and the heat resistance time of Level 2 fire-resistant coatings should not be less than 10 minutes. Users should pay attention to differentiate when selecting.

(3) As per my knowledge, currently, fire-resistant coatings produced by domestic enterprises that meet the second-level fire-resistant standard are priced at over 8,000 yuan per ton. If the selling price is below this, the quality is questionable. (4) The on-site application of fire-resistant coatings should be guided by the product's outer packaging instructions from the manufacturer. Generally, it does not require water dilution. The coating should be applied in two or more coats, with each coat not less than 500 grams per square meter. When fire-resistant coatings are diluted with water or insufficiently applied, it greatly affects their fire-resistant properties. Fire departments should strengthen supervision at construction sites to prevent contractors from cutting corners. (5) Genuine fire-resistant coatings will undergo significant foaming and expansion when exposed to high heat from torches, with the surface bulging up without burn damage within minutes. Counterfeit fire-resistant coatings, on the other hand, barely foam and will show excessive falling and chipping, and the wooden base material will quickly catch fire and deteriorate. (6) If possible.

Also, a preliminary quality check of the product can be conducted on-site: cut 2 to 3 small samples from the pre-installed substrate, or apply a small amount of sample to 2 to 3 150mm x 150mm plywood sheets, and brush according to the actual application process. After drying, inspect with the flame of an alcohol lamp. The flame height should be around 40mm, and the flame should be applied for about 20 minutes to check for foaming. Normally, applying the coating at the specified rate (usually 500g/square meter) results in a foam layer thickness of over 20mm for Class 1 fire-retardant coatings and over 10mm for Class 2 fire-retardant coatings, with the foam layer being even and dense. (7) In actual use, to ensure the fire-retardant properties and other performance of the fire-retardant coating, a transparent topcoat is generally required. The application rate of the fire-retardant coating is typically 350 to 500g/square meter, and the topcoat is usually applied at a rate of 50g/square meter. Second, due to an unreasonable construction plan, the fire-retardant coating on the painted steel structure is too thin.

The purpose of applying fire-resistant coatings on steel structures is to enhance their fire resistance limit, which is closely related to the coating thickness. Different thicknesses of the same fire-resistant coating result in varying fire resistance limits. It is essential to select the appropriate coating thickness based on the building's fire resistance limit for effective fire protection. Thirdly, there may be surface imperfections in the fire-resistant coating of steel structures during construction, caused by two factors: improper surface preparation and uneven application. Fourthly, choosing the wrong type of fire-resistant coating during application is critical. Different types of coatings have different thickness requirements and fire resistance limits on steel structures. Applying different types of coatings to various parts of the steel structure ensures that the fire resistance limit meets fire safety standards. Incorrect type selection can compromise fire safety even if the coating thickness is adequate. Fire-resistant coatings for steel structures can be categorized into indoor and outdoor types, and they should be transported as ordinary solid substances to prevent rain and excessive sunlight exposure. Performance specifications: Appearance, Bulk Density, Water Resistance, Oil Resistance, Compressive Strength, Drop Resistance, Fire Resistance - Coating should be intact and free from damage, 0.6×10^3 kg/m^3.

≥3 days, no visible changes in the inner packaging material, with the package intact and undamaged; R≥0.05 Mpa, when the package is dropped freely from a height of 5 meters onto a concrete flat surface, no damage occurs; fire-resistant sealing material with a fire resistance limit of ≥180 minutes.

Fire incidents in enterprises are most commonly caused by reasons such as the rotting of distribution cabinets, aging of wiring, equipment short circuits, and improper operation of electrical equipment. The main reason is that with the promotion of fire prevention knowledge for steel structures, people have also started to value the fire resistance of steel structures. The use of fire-resistant coatings for steel structures is convenient and simple, and has gained widespread application. However, as more people use it, issues have been identified. Due to the lack of understanding of fire-resistant coatings for steel structures, there is a possibility that the purchased coatings may be: (1) Verify if the product has a qualified inspection report issued by a fire inspection and quality supervision center, and also check online. Currently, fire-resistant coatings are subject to the type-approval system for fire products, and fire-resistant coatings sold on the market should have a national type-approval certificate for fire products and a type-approval report of conformity. (2) According to national standards, in addition to meeting fire resistance requirements, the combustion performance of fire-resistant coatings is divided into level one and level two. Under specified test conditions, the burn time of level one fire-resistant coatings should not be less than 20 minutes, and the heat resistance time of level two fire-resistant coatings should not be less than 10 minutes. Users should pay attention to differentiate between them when choosing.

Avoid businesses from selling substandard products that fail to meet fire protection requirements. (3) According to the author's understanding, currently, fire-resistant coatings produced by domestic enterprises that meet the second-level fire-resistant standard are priced at over 8,000 yuan per ton. If the selling price is below this, the quality is questionable. (4) On-site application of fire-resistant coatings should follow the manufacturer's instructions on the product's outer packaging, generally without the need for water dilution. The coating should be applied in two or more coats, with a minimum of 500 grams per square meter. If the fire-resistant coating is diluted with water or applied insufficiently, it will significantly affect its fire-resistant properties. Fire departments should strengthen supervision at construction sites to prevent contractors from cutting corners. (5) Genuine fire-resistant coatings will foam and expand significantly when exposed to intense heat from torches, with surface bulging that does not show burn damage within minutes. On the other hand, counterfeit fire-resistant coatings barely foam and will shed large amounts of debris, with the wood substrate quickly catching fire and deteriorating. (6) If possible.

Also, a preliminary quality check of the product can be conducted on-site: Cut 2 to 3 small samples from the pre-installed substrate, or apply a small amount of sample to 2 to 3 150mm x 150mm plywood sheets, and brush according to the actual application. After drying, inspect with the flame of an alcohol lamp. The flame height should be around 40mm, and the flame should be applied for about 20 minutes to check for foaming. Under normal circumstances, applying the specified amount (usually 500g/square meter) should result in a foam layer thickness of over 20mm for first-grade fire-resistant coating and over 10mm for second-grade fire-resistant coating, with the foam layer being even and dense. (7) In actual use, to ensure the fire-resistant properties and other performance of the fire-resistant coating, it is generally necessary to use a transparent topcoat. The amount of fire-resistant coating typically ranges from 350 to 500g/square meter, while the topcoat usually requires 50g/square meter. Secondly, due to an unreasonable construction plan, the fire-resistant coating on the painted steel structure is too thin.

The purpose of applying fire-resistant coatings on steel structures is to enhance their fire resistance limit, which is closely related to the thickness of the applied coating. Different thicknesses of the same fire-resistant coating lead to varying fire resistance limits. It is essential to choose the appropriate coating thickness based on the building's fire resistance limit for effective fire protection. Thirdly, in the construction process, the surface of the fire-resistant coating on steel structures may have issues, primarily due to improper surface preparation and uneven application during coating. Fourthly, selecting the wrong type of fire-resistant coating during application is problematic. Different types of coatings have varying thickness requirements and fire resistance limits on steel structures. Applying different types of coatings to various parts of the steel structure ensures that the fire resistance limit meets fire safety requirements. Choosing the wrong type can compromise fire safety, even if the coating thickness is adequate. Fire-resistant coatings for steel structures can be categorized into indoor and outdoor types based on the construction environment.

Interior steel structure fire-resistant coatings lack some properties of exterior steel structure fire-resistant coatings and cannot adapt to outdoor environments, thus they are not suitable for outdoor fire protection. In contrast, exterior steel structure fire-resistant coatings can be used for indoor fire protection. Additionally, ultra-thin and thin-coating steel structure fire-resistant coatings, due to their better decorative properties, have a fire resistance limit of two hours or less. Therefore, they are generally used on steel structures requiring decorative effects within two hours. On the other hand, thick-coating steel structure fire-resistant coatings, with poor decorative properties, have a fire resistance limit of more than two hours and are used on steel structures that do not require decorative effects for more than two hours. Fifthly, the construction team chosen for the steel structure fire-resistant coating is不合格. The quality of the steel structure fire-resistant coating's construction directly affects its fire protection and performance. According to national regulations, the construction of steel structure fire-resistant coatings should be carried out by trained personnel. Sixthly, the fire-resistant coating layer was damaged during decorative work, welding, and dismantling of construction tools, and was not repaired in a timely manner. To ensure the fire resistance limit of the steel structure fire-resistant coating, the coating should be repaired promptly when damaged.

Recently, a polystyrene foam factory on Dalun Road in Dacun Township, Changhua County, caught fire, with the flames spreading rapidly and thick smoke filling the air. Thankfully, due to timely rescue efforts, there were no casualties. It is widely known that fires are occurring more frequently these days. To prevent fires, the Fire Department has stipulated that fire-retardant coatings must be applied during factory construction. However, does fire-retardant coating actually prevent fires? Fire-retardant coatings are a type of flame-retardant paint made from various materials such as film-forming agents, flame retardants, and foaming agents. Common types include decorative fire-retardant coatings, wood fire-retardant coatings, and steel structure fire-retardant coatings, with a wide range of applications. The fire-retardant mechanism of fire-retardant coatings lies in their inherent flame resistance or non-flammability, which prevents the protected material from coming into direct contact with air, delaying ignition and reducing the rate of combustion. In addition to their flame resistance or non-flammability, fire-retardant coatings also have a low thermal conductivity, which can delay the transfer of flame temperature to the protected material. When heated, fire-retardant coatings decompose to release non-flammable inert gases, diluting the flammable gases released by the protected object upon heating.

It makes it less flammable or slows down the burning rate. Nitrogen-rich fire-retardant coatings decompose upon heating to release groups such as NO and NH3, which then react with organic free radicals, interrupting the chain reaction and lowering temperatures. Expandable fire-retardant coatings expand and foam upon heating, forming a carbonaceous foam insulating layer that seals the protected object, delaying the transfer of heat to the base material, and preventing the object from catching fire and burning or from experiencing strength degradation due to temperature rise. The main characteristics of fire-retardant coatings are enhanced through micronization technology and formula optimization, resulting in an expandable carbonization layer with excellent adhesion and strength, maintaining good adhesion even under strong air flow impact, and completely resolving the issue of carbonization layer delamination (the two-skin phenomenon). Long-lasting Corrosion Protection: By modifying synthetic resins and micronizing raw materials, the poor corrosion resistance caused by physical defects in raw materials is effectively addressed, significantly enhancing the product's corrosion resistance and durability. Types of fire-retardant coatings: Expandable fire-retardant coatings: This type of fire paint contains resins.

To ensure the quality of fire-resistant coating on steel structures, a key highlight is selecting qualified fire-resistant coatings for steel structures and construction teams. Below, we introduce how to choose a fire-resistant coating construction team for steel structures. Check the qualifications of the construction team for steel structure fire-resistant coating. The qualification must be recognized by the fire supervision department, and the construction operators should be trained and proficient in the construction process. Second, inspect the chosen fire-resistant coating construction personnel and inquire about relevant information, such as precautions and steps for fire-resistant coating application, to prevent the presence of unqualified personnel. Third, have the steel structure fire-resistant coating personnel perform a trial application, observe the results. Unqualified personnel should be replaced promptly. Fourth, to prevent issues with the construction team, provide a basic training session to enhance the knowledge of the construction personnel, thereby reducing the likelihood of discovering unqualified situations.

Many fire-resistant coating companies aim to reduce the production costs of fire-resistant coatings while maintaining the same quality. To be honest, this is quite challenging, but today, Beijing Xingkun Fireproof Material Co., Ltd. is going to show everyone how to achieve this goal. More importantly, it is crucial not to compromise the quality and effectiveness of the fire-resistant coatings. Firstly, strengthen the training of production personnel for steel structure fire-resistant coatings. Skilled workers not only operate quickly but also have a high production capacity. Therefore, enhancing the training of these production personnel is also a way to lower production costs. Secondly, locate the factory for producing steel structure fire-resistant coatings near the raw material market. A shorter distance for production can increase speed and reduce transportation costs, thereby lowering the production costs of steel structure fire-resistant coatings. Thirdly, choose affordable raw material suppliers. In the cost of steel structure fire-resistant coatings, the price of raw materials largely determines the overall cost.

Indoor steel structure fire-retardant coatings lack some properties of outdoor steel structure fire-retardant coatings and cannot withstand outdoor environments, thus they are not suitable for outdoor fire protection. Conversely, outdoor steel structure fire-retardant coatings can be used for indoor fire protection. Additionally, ultra-thin and thin-coated steel structure fire-retardant coatings, due to their better decorative qualities, have a fire resistance limit of two hours or less. Therefore, they are generally used on steel structures requiring decorative effects within two hours. In contrast, thick-coated steel structure fire-retardant coatings, with poor decorative qualities, have a fire resistance limit exceeding two hours and are used on steel structures that do not require decorative effects for more than two hours. Fifthly, the selected construction team for steel structure fire-retardant coating is不合格. The quality of steel structure fire-retardant coating construction directly affects the fire protection and performance of the coating. According to national regulations, steel structure fire-retardant coating construction should be carried out by trained personnel. Sixthly, the fire-retardant coating layer was damaged during decorative work, welding, and dismantling of tools, and was not promptly repaired. To ensure the fire resistance limit of the steel structure fire-retardant coating, any damage to the coating should be repaired promptly.