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High temperture Fire Retardant Coating
Most of the main load-bearing components of modern buildings rely on strong and lightweight steel, steel structure will not burn under the action of fire, but steel in the direct burning of high temperature flames, the strength will be reduced as the temperature rises, when it reaches a limit threshold, it will significantly reduce the strength and loss of load-bearing capacity.
The use of fireproof coating for fire retardant method is considered to be one of the most effective measures, and steel structure fireproof coating plays an important protective role in 90% of steel structure fireproofing projects. Fireproof coating coated on the surface of materials, in addition to the decorative and protective effect, due to the coating itself or else and refractory, can prevent the spread of flame and delay the expansion of fire when fire occurs, better protection of the substrate.
As a functional coating, the main function of fireproof coating is fireproofing. The anti-corrosion of steel structure mainly needs antirust primer to complete, the antirust primer used for steel structure fireproofing coating must be compatible with fireproofing coating, and both of them have good adhesion. Generally, the construction of fireproof coating is carried out on the basis of primer, and the corresponding thickness is applied according to the requirements of fire resistance limit.
In the fireproofing coating system, the sealing topcoat is very important. One is to resist corrosive media and external stress on the destruction of fireproof coating, can effectively close and block water, moisture penetration into the paint surface, so that with the fireproof coating up and down to play the overall effect of protection of steel. The second is to play a decorative and beautifying role for the building in general, such as good gloss, rich colours, flat and smooth exterior.