The steel structure engineering company explained that the ultra-thin steel structure fireproof coating should be treated on the coating substrate before coating, and the existence of dirt such as moisture and dust should be strictly prevented to ensure the adhesion of the film. During spraying, the distance between the spray gun and the surface of the steel substrate is moderate, about 20 ~ 30cm, which affects the adhesion of the coating.

If it is too close, the sprayed paint will easily rebound and cause losses. The spraying construction of fire retardant coating must be carried out in layers. Each spraying can only be carried out after the last coating is completely dried and cured. The construction environment is well ventilated and the weather is sunny. The recoating interval is 24-48 hours. In case of rain or condensation on the surface of steel structure, spraying construction shall not be carried out without other special measures. Whether the ultra-thin steel structure fireproof coating is within the effective storage period can be inspected according to this standard if it exceeds the storage period, and it can still be used if it meets the requirements.

The fire-proof spraying protection of steel structures shall be guided by a trained professional construction team or engineering technicians who develop fire-proof coatings to ensure the quality of the project. If the high-quality fire retardant coating is not properly applied and cannot achieve good fire protection effect, the correct construction method must be adopted, continuously improved and perfected in practice, formed specifications and strictly implemented.