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The amount of diluent in the coating shall not be too much, otherwise the normal construction viscosity of the coating will be reduced, and the coating cannot be attached to the surface of steel structure.
Precautions for the construction of intumescent indoor steel structure fireproof coating 1.
Spraying site requirements, component surface treatment, joint filling, coating preparation, spraying times, quality control and acceptance, etc, It shall comply with the current national standard technical code for application of fire retardant coatings for steel structures.
Different parts should be selected to test the foaming performance of intumescent fire retardant coatings in construction.
In the process of coating construction, the last coating shall be applied after the previous coating is basically dry and solidified.
Formulate strict construction scheme according to project characteristics and product selection.
For the spraying of fireproof coating, the consistency of coating, the pressure of air compressor and the distance between spraying port and components shall be well controlled.
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5.
The substrate surface cleaning of fireproof coating shall be strictly inspected as a process.
The protection mode, construction times and thickness of the protective layer of the coating shall be determined according to the construction design requirements.
The bottom and surface coatings in the fire retardant coating shall be matched accordingly, and the bottom coating shall not rust the steel.
The fireproof spraying protection of steel structure shall be constructed by a professional construction team who has been trained and qualified and has corresponding construction qualification.
The physical and chemical properties of the coating can be tested according to the needs of the project in accordance with the specified proportion before the project is carried out.
Shida Jinzun water-based environmental protection fire retardant coating focuses on the research and development of high-quality fire retardant coating products, and undertakes all kinds of large, medium and small steel structure workshops, workshops and building spraying process projects.
The coating thickness shall be checked while construction (measured by thickness gauge) 。 If the cracks in the coating are common and wide, study and analyze whether the process is correct and whether the mix proportion of the coating is reasonable.
The coating thickness shall reach the design value, and the node shall be thickened.
The coating shall be flat, without obvious depression, firmly bonded, without pulverization, looseness and laitance, the mastoid has been removed, and there are no missing coating, de pulverization, obvious cracks, etc.
4.
During construction, it is mainly observed that there are many splashes, indicating that the construction parameters are unreasonable and should be adjusted.
The coating thickness of each pass shall be moderate, not too thick or not rolled evenly, so as not to affect the coating quality.
After the completion of the project, it is not only necessary to measure the coating thickness, but also use visual method to detect the coating color, missing coating and cracks, tap the coating with 0.75 ~ 1kg hammer to detect its strength, and use 1m ruler to detect the flatness of the coating.
Strictly follow the coating process, and avoid leaving potential safety hazards to the building in order to rush the construction period.
Remove dust, iron filings, rust, grease and other substances that hinder adhesion, and do a good job in antirust treatment of the substrate.
It has all kinds of fire maintenance and security inspection technology appraisal! For the benefit of people’s livelihood, we are committed to creating high-efficiency products and construction spraying technology.
