What should be paid attention to in the construction of steel structure fire protection coating?

China Paint Online News Information:
Steel structure fire protection paint construction precautions: 1, steel structure fire spray protection should be trained qualified and with the corresponding construction qualifications of professional construction team construction team. According to the characteristics of the project and product selection, such as the formulation of strict construction programs. The chemical and chemical properties of the coating can be tested according to the prescribed proportion before the project is carried out. The inflated fire-resistant coating should be selected in the construction of different parts to test foaming performance.2, fire-resistant coating substrate surface cleaning should be a process of strict inspection. Remove dust, iron chips, rust, grease and other substances that hinder adhesion, and do a good job of rust-proof treatment of substrates. The underlying and surface coatings in the fire-resistant coatings shall be matched accordingly, and the underlying coatings shall not rust steel.3, the thickness of the coating should reach the design value, its node site should be thickened treatment. Spray site requirements, component surface treatment, seam filling, coating preparation, spraying number, quality control and acceptance, etc., should comply with the current national standard "steel structure fire coating application technical specifications" (CECS24). The thickness of the coating should be checked at the side of the construction (measured by a thickness meter). If the coating cracks are widespread and the width is large, the process should be studied and analyzed correctly, and the coating's fit ratio is reasonable.4, fire-resistant paint spraying to master the consistency of the paint, air compressor pressure and injection of the distance between the port and the component. The main observation in the construction, splashing objects show that the construction parameters are unreasonable, should be adjusted. The amount of thinner in the coating should not be too much, otherwise it will reduce the normal construction viscosity of the coating, the coating can not be attached to the surface of the steel structure.5, in the paint construction process, must be in the previous coating after basic drying and curing, and then after construction. The protection mode of the coating, the number of construction times and the thickness of the protective layer should be determined according to the construction design requirements, the coating thickness of each pass should be moderate, should not be too thick or not rolled evenly, so as not to affect the quality of the coating. In strict accordance with the coating process, avoid in order to rush the construction and leave a safety hazard.6, after the completion of the project can not only carry out the measurement of coating thickness, but also should use visual method to detect the color of the coating and leakage and cracks, with 0.75 to 1 kg tap the coating to detect its strength, etc. , with a 1m straight ruler to detect the coating flatness.
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