1. Thick-type steel structure fireproof coating should be painted before interior decoration and under the condition that it will not be damaged by subsequent works. When constructing the thick steel structure fireproof coating, the walls, doors and windows, mechanical equipment and other components which do not need fire protection shall be covered and protected.
2. Before applying the thick steel structure fireproof coating, the rust removal and antirust primer coating shall meet the design requirements and the current relevant norms, except for the dust, oil and other sundries on the surface of the steel components.
3. Before spraying, brush the steel structure interface agent once for thick steel structure fireproof coating NH(BT-03), and spray or smear the thick steel structure fireproof coating by spraying or wiping after the surface drying of interface agent. Before spraying, the thick steel structure fireproof coating should be mixed and stirred evenly according to the ratio of powder: emulsion=1:1, so that it will be a thick fluid state without lumps.
4. The consistency should be determined according to the way of coating, and it is suitable for convenient construction, no flow and firm bonding. For wide and large steel materials, steel frame net should be added to prevent the thick steel structure fireproof coating from leaking or separating.
5. when the thick steel structure fireproof coating is painted by spraying, the concave-convex bucket type spray gun is used, the air pressure is 0.6～0.8MPa, the diameter of the spray gun mouth is 6～10mm, and the spray gun is perpendicular to the surface of the painted member, and it is suitable to be 40～60mm.
6. Thick steel structure fireproof coating NH (BT-03) spraying construction once is not too thick, to be dry and then the next construction, in order not to flow as appropriate, until the standard thickness. The method of thick steel structure fireproofing coating by wiping is basically the same as that of cement wiping.
1、Thick steel structure fireproof coating does not contain asbestos and organic solvents, which is harmless to human body.
2、Thick steel structure fireproof coating is directly sprayed and smeared for construction, and it is fast drying and curing.
3、Thick steel structure fireproof coating has light coating, firm bonding, high strength, good fireproof performance, and the substrate can be treated without anticorrosion.
