Classification of fireproof materials used in steel structures

With the continuous development of steel structure technology, the current types of steel products supporting the continuous improvement and rich, and the use of Shanxi steel structure of the fire retardant coating and therefore said a lot of species, the current classification of fire retardant coating standards are many, but the most commonly used One is by the thickness, according to the thickness can be divided into thick coating type, thin coating and ultra-thin three categories.
Thick coating steel structure Fireproof coating refers to the use of coating thickness of 8 ~ 50mm coating. This kind of Shanxi steel structure fireproof paint fire resistance limit of 1.0 ~ 3h. This kind of steel structure fireproof coating is made of suitable adhesive, matched with inorganic light materials, reinforced materials and other components, the construction of more use of spraying, is generally used in the refractory requirements of more than 2h steel structure builders.
Thin coated steel structure Fireproof coating refers to the use of coating thickness of 3 ~ 7mm steel structure fire retardant coating. When the paint is inflated, it can expand and foam, and the fireproof insulation layer formed by expansion foam can delay the temperature rise of steel and protect the steel member. But the foam rate is not high, decorative than thick coating is good, the construction of more use of spraying, the general use of fire resistance requirements of not more than 2h of construction steel structure.
Ultra-thin steel structure Fireproof coating refers to the use of coating thickness of not more than 3mm steel fire retardant coating. Shanxi steel structure formula that this steel fire retardant coating by fire when the expansion of foam to form a dense fire insulation layer, the fire insulation layer delayed the temperature rise of steel, Shanxi steel structure to improve the fire resistance limit. Construction can be used spraying, brushing or roller coating, the general use of fire resistance requirements within 2h within the construction of steel structures.