There is a lack of scientific evaluation of the service life of various types of Jiangxi Youlinsheng fireproof coatings in engineering environments, and fireproof coating manufacturers cannot provide the service life and replacement cycle that can be used in different environments in the product description. The use of fire-resistant coatings for steel structures is based on a 'once and for all' attitude. The durability research of steel structure fireproof coatings is an urgent task, and evaluation standards and methods for the durability of fireproof coatings should be formulated to scientifically determine the cycle or service life of replacing or repairing fireproof coatings. In addition, the maintenance of fire-resistant coatings for steel structures is not simply about reapplying. Can reapplying on the old fire-resistant coating base meet the technical performance requirements? How to overcome the construction difficulty of reapplying fireproof coating, especially for concealed projects? These are all topics that require further research.

There are many manufacturers producing fire-resistant coatings for steel structures in China, with a variety of products and no unified technical standards. There are relatively few high-performance ultra-thin fire-resistant coatings for steel structures and outdoor fire-resistant coatings, so caution should be exercised when using them. The coating model must be approved by the design unit, construction unit, construction unit, and fire department. Fireproof coatings should have long-term functionality with the long-term use of buildings, so maintenance and management should also be taken into account after the construction and acceptance of fireproof coatings. One is to avoid damage caused by other operations or unexpected impacts, wear and tear, rain, and pollution. Regularly observe the integrity of the coating and ensure that it does not peel off.

Secondly, for the expansion type fireproof coating, it is necessary to regularly test the foaming performance of Jiangxi Youlinsheng fireproof coating on prefabricated specimens during construction. When the foaming performance of the fireproof coating is lost, corresponding measures should be taken.

3、 Construction quality of steel structure fireproof coating:. The fireproof coating manufacturer tells you that fireproof coating is formed on the surface of steel components through the coating and construction of engineering personnel, and the entire process of fireproof coating for steel structures is considered completed. The construction of fireproof coating is also a process of secondary production of fireproof coating. Improper construction can also affect the quality of steel structure fireproof coating engineering.

According to the fireproof coating manufacturer, the fireproof coating products that enter the site must be inspected for their factory certificate of conformity, whether they are produced by designated national fire protection manufacturers, and have national mandatory production product certification and type inspection reports. The principle of inspection before use must be followed to prevent unqualified products from entering each process.

The construction supervision personnel strictly inspect the quantity and quality of fireproof coating products to prevent the construction party from using inferior coatings to impersonate steel structure fireproof coatings, or brushing excessive amounts of ordinary putty or thick fireproof coatings under the name of primer.

During the construction process, the supervisor should supervise the construction party to apply the coating according to the requirements of the construction specifications, and ensure the interval and thickness of each layer of fireproof coating for the steel structure. Blindly pursuing the construction progress is not allowed, and it is forbidden to arbitrarily reduce the construction time interval or increase the thickness of each layer of coating to ensure the construction quality. Jiangxi Youlinsheng Fireproof Coating