The thick steel structure Youlinsheng fireproof coating, manufactured by a professional company, is composed of composite chemical additives such as special expanded vermiculite, inorganic cementitious materials, flame retardant additives, and high-temperature resistant reinforcement materials, boasting excellent fireproof and thermal insulation properties. It can serve as a fireproof layer for various steel structures in buildings, tunnels, and reinforced concrete structures, including beams, columns, walls, and floor slabs. Its fireproof performance and physicochemical mechanical properties meet the requirements of the GB14908-2002 standard.

The composition of a steel structure fire-resistant coating manufacturer is diverse. Typically, catalysts are added to the coating. It is precisely due to the presence of these catalysts that fire-resistant coatings can protect steel structures from deforming in case of a fire. However, many times, it is due to improper operation by construction personnel.

 Therefore, the fire resistance of steel structure fire-resistant coatings is greatly reduced, posing no guarantee for personnel safety. Next, we will discuss what incorrect construction practices to avoid with steel structure fire-resistant coatings. Proper application of fire-resistant coatings is crucial for them to function effectively.

 However, during construction, many incorrect and unqualified operations are often observed. In the application of fireproof coatings, it is important to understand and avoid certain incorrect practices. Selection errors: The thickness of the coating is directly related to the fire resistance rating of the fireproof coating. During construction, appropriate products should be selected correctly and strictly according to product specifications. The sprayed surface exhibits papillae.

To ensure uniformity and smoothness in the application of fire-resistant coatings on steel structures, any protrusions should be removed. When the sprayed coating is too thin: The performance indicators of fire-resistant coatings are related to the thickness and density of the spraying. Coatings of the same type can have varying thicknesses and different flame-retardant limits. In practice, an overly thin coating is prone to errors.

 The construction of thick steel structure fire-resistant coatings can be divided into two categories: with and without metal mesh. For the construction with metal mesh, after the anti-rust paint dries, the metal mesh is cut according to the shape of the steel sheet. The metal mesh is fixed to the steel sheet using steel bar clamps, and then pre-welded steel bars are used to press the metal mesh up, ensuring that the distance between the mesh and the steel sheet surface remains around 1cm.

The proportion without metal mesh: powder: water = 1:1.1-1.2. Spray (or apply) flame retardant coating. Mix the powder and water of the flame retardant coating in a blender according to the proportion, and stir for 5-10 minutes to obtain a uniform thick fluid state. Spraying: The construction requires a dedicated extrusion pump spraying system. When spraying, it should be perpendicular to the steel surface, with a distance of 0.4~0.6 meters being appropriate. The spraying pressure should be maintained between 0.4~0.6 Mpa.

Paint: Similar to the traditional method of applying mortar with a trowel, it requires uniform thickness, compaction, and leveling to avoid defects such as honeycombing and air voids. The coating thickness is 5-6mm, with 7-10mm applied for each layer until reaching the design thickness. After the surface dries, the next layer can be applied. Jiangxi Youlinsheng Fireproof Coating Manufacturer