Paint knowledge | what are the differences between steel structure fire retardant coating and fire retardant paint

Core tip: because a large number of flammable materials such as wood and cloth are used in home decoration, it is very important to do a good job in home fire prevention At present, one of the most important fire prevention measures is to brush fire retardant coating or fire retardant paint What's the difference between fireproof coating and fireproof paint for steel structure? Let's talk about it in detail and get to know it together The difference between fire retardant coating and fire retardant coating for steel structure I The concept of fire retardant coating for steel structure: it is defined as the coating applied to the surface of buildings and steel structures, which can form a fire-resistant and heat-insulating protective layer to improve the fire endurance of steel structures At present, fireproof coating for steel structure at home and abroad Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: because a large number of flammable materials such as wood and cloth are used in home decoration, it is very important to do a good job in home fire prevention At present, one of the most important fire prevention measures is to brush fire retardant paint or fire retardant paint What's the difference between fireproof coating and fireproof paint for steel structure? Let's talk about it in detail and get to know it together The difference between fire retardant coating and fire retardant coating for steel structure I The concept of fire retardant coating for steel structure: it is defined as the coating applied to the surface of buildings and steel structures, which can form a fire-resistant and heat-insulating protective layer to improve the fire endurance of steel structures At present, the fireproof coating for steel structure at home and abroad mainly consists of matrix resin, catalyst, carbon forming agent, foaming agent, etc Fire retardant paint: a kind of fire retardant paint made of film forming agent, flame retardant, foaming agent and other materials The difference between steel structure fire retardant coating and fire retardant paint II Classification of steel structure fire retardant coating can be divided into: ultra thin structure fire retardant coating, thin steel structure fire retardant coating, thick steel structure fire retardant coating, mineral wool building fire retardant and heat insulation coating; fire retardant paint can be divided into: facing fire retardant paint, wood fire retardant paint, steel structure fire retardant paint The difference between steel structure fire retardant coating and fire retardant coating 3 Fire retardant principle of steel structure fire retardant coating fire retardant and heat insulation principle of ultra thin or thin steel structure fire retardant coating: The principle of fire protection and insulation for thin or thin steel structure fireproof coating coated on steel structure is that the fireproof coating layer expands and foams when it is heated, and the foam layer not only isolates oxygen, but also has good heat insulation performance because of its loose texture, and it can delay the heat transfer to the protected substrate According to the principle of physical chemistry, the process of coating foam layer is expanded by heat absorption, which also consumes the heat of combustion, which is beneficial to reduce the temperature of the system These aspects can make the fire retardant coating produce remarkable fire protection and heat insulation effect Fire and heat insulation principle of thick steel structure fire retardant coating: The fire insulation principle of thick steel structure fire retardant coating applied on steel members is that the coating basically does not change in volume when the fire retardant coating is under fire, but the thermal conductivity of the coating is very low, which delays the speed of heat transfer to the base material to be protected The coating itself of the fire retardant coating is non combustible, which acts as a barrier for steel members and prevents heat radiation, and avoids the direct attack of flame and high temperature on steel members In addition, some components in the coating react with each other in case of fire to generate non combustible gas in the process of endothermic reaction, which also consumes a lot of heat, which is conducive to reducing the system temperature, so the fire protection effect is significant, and plays an effective fire and heat insulation protection for steel In addition, the coating does not change in volume to form a glaze like protective layer when the steel structure fireproof coating is under fire, which can insulate oxygen and prevent oxygen from contacting with the protected inflammable substrate, so as to avoid or reduce the combustion reaction However, the thermal conductivity of the glaze protective layer produced by this kind of coating is often large and the thermal insulation effect is poor In order to achieve a certain fire and heat insulation effect, the thick steel structure fire retardant coating can generally achieve a certain fire and heat insulation performance requirements only when the coating is thick The fire-proof principle of fire-proof paint (1) the fire-proof paint itself is flame-retardant or incombustible, so that the protected base material does not contact with air directly, delaying the ignition of objects and reducing the burning speed; (2) in addition to its flame-retardant or incombustible, the fire-proof paint also has a low heat conduction system, which can delay the transfer of flame temperature to the protected base material; (3) The fire-proof paint decomposes the non combustible inert gas when heated, dilutes the combustible gas decomposed by the protected object when heated, so that it is not easy to burn or the burning speed slows down (4) The nitrogenous fire-retardant paint decomposes no, NH3 and other groups by heating, combines with organic free radicals, interrupts chain reaction and reduces temperature (5) the expansion type fire retardant paint is heated and expanded to form a carbon foam insulation layer to seal the protected object, which delays the transmission of heat and the substrate, prevents the fire from burning or the strength drop caused by the temperature rise When consumers purchase fire-proof materials, they will encounter such a problem What is the choice of fire-proof coating or fire-proof paint? After a brief introduction of the difference between fire-proof coating and fire-proof paint for steel structure, I believe it will help you and guide you to purchase in the future Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,