Fire Protection Effect Of Intumescent Steel Structure Fireproof Coating On Steel

Barrier function. The high-expansion carbonized layer can effectively isolate the protected steel structure from air and heat sources, thereby effectively reducing the surface temperature of the steel structure and prolonging the support time of the steel structure in a fire.

The heat absorption, softening, melting and expansion of the polymer coating, the physical change of the carbonized layer and the thermal decomposition, evaporation and carbonization of the coating components will absorb a lot of heat, thereby effectively reducing the surface temperature of the steel structure.

Suspend combustion. Various incombustible gases decomposed by thermal decomposition of coating components can dilute the oxygen concentration and capture free radicals generated by combustion, thereby effectively preventing combustion. The coordination of these three processes finally makes the intumescent steel structure fireproof coating play an effective fireproof role.

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