Notes on Application of Fire-Proof Paint

Fireproof spray protection project on steel structure should be constructed by trained and qualified team which can choose strict construction program according to the engineering characteristics and product selection. Physical and chemical properties of the coating can be carried out in accordance with the project which needs the required proportion for sampling.

Substrate surface on fire-retardant paint should be viewed as a strict process. And the people should clear dust, iron, rust, grease and other substances interfere with adhesion to take great measures on rust prevention. The bottom and surface on the fireproof paint should be correspondingly matched without rust steel.

The coating thickness should meet the value; the node position should be thickened. Spraying area requirements, component surface treatment, filling seams, paint preparation, spraying passes, quality control and inspection, etc., should be consistent with existing national standards "Steel fire-retardant application of technical specifications" (CECS24) requirements. If the coating crack is large, you should research and analysis process to ensure whether it is correct. Coating is also important in the whole steel structure engineering, so you must pay more attentions to it.

Consistency should be well controlled while coating, and the distance between air compressor and component. If there are many splash down things, that means the construction parameter is unreasonable and it should be adjusted. Paint thinner dosage is not too much, otherwise it will reduce the viscosity of the normal construction of the paint, and coatings cannot be attached to the structural steel surface.

In the coating application process, you must coat it after first basic coating is drying. Paint protection, construction of the number of times the thickness of the protective layer should be determined according to the construction design requirements, each pass coating thickness should be moderate, not too thick or roller evenly, so as not to affect the quality of the coating.