What is a facing fire retardant coating?
Finished fire retardant coating: Finished fire retardant coating is a new type of coating that combines decoration and fire protection. When it is applied to flammable substrates, it can usually play a certain decorative role; once a fire occurs, It has the purpose of preventing the spread of fire and thus protecting the combustible substrate. It is precisely because of its special use that foreign industrialized countries developed fire retardant coatings as early as the 1920s. The development of this coating has gone through two stages. In the initial stage, inorganic fireproof coatings with silicate water glass as binder are used. These fireproof coatings do not burn themselves. When they are in fire, they can form an empty core foam layer, which has a certain protective effect on combustible substrates. Thermal properties and weather resistance are poor, and it is prone to whitening, cracking and shedding. In the late 1940s, people began to develop organic intumescent fire-retardant coatings. The main features of this coating are fire resistance and physical and chemical properties, which are superior to inorganic fire-retardant coatings. When the coating encounters fire, it can form dense sponge-like expansion foam with good thermal insulation properties. The layer is more effective in protecting flammable substrates. Finished fire retardant coatings: The development of China's decorative fire retardant coatings is also divided into two stages. The fire retardant coatings that appeared in the late 1950s were also inorganic fireproof coatings using silicate water glass as a binder. In the early 1970s, some professional paint factories produced perchloroethylene and chlorinated rubber fire retardant paints. The above two kinds of fireproof coatings are not ideal in China because they are not ideal for fire prevention. It was not until the late 1970s that China began research work on organic intumescent fire retardant coatings. The earliest intumescent fireproof coating was developed by the Sichuan Fire Research Institute of the Ministry of Public Security, B60-1 acrylic intumescent fire retardant coating and A60-1 modified amino intumescent fireproof coating. Since then, China's organic expansion fire retardant coatings have developed rapidly. Up to now, China's fire-resistant paint production enterprises have grown to more than 200, with sales of tens of thousands of tons, and have formed an inter-departmental research and production system. Finished fire retardant coating: Finished fire retardant coating can be divided into solvent type and water type. The fireproofing components selected for the two types of coatings are basically the same, so it is difficult to say how much their fire performance is different. The solvent chosen is based on the film forming material employed. Solvent-based fire retardant coatings generally use chlorinated rubber, perchloroethylene, amino resin, phenolic resin, etc. The solvent used is solvent gasoline No. 200, paint thinner, butyl acetate and the like. The film-forming materials of water-based fire-retardant coatings are generally selected from the group consisting of vinyl chloride-vinylidene chloride emulsion, styrene-acrylic emulsion, pure acrylic emulsion, polyvinyl acetate emulsion, etc., all of which use water as a solvent. The difference in performance between the two types of coatings is mainly in the physical and chemical properties and weather resistance of the coatings. The performance of the solvent-based fire retardant coatings is superior to the waterborne fireproof coatings. Transparent fireproof coating is a kind of decorative fireproof coating developed in recent years and matured. The products are widely used in the decoration of wooden structures such as hotels, hospitals, theaters, computer rooms, etc., decoration of various high-rise buildings and ancient buildings. And fire protection. However, with the rapid development of China's industry and the demand in the market, higher requirements are put forward for transparent fireproof coatings, which not only have good fireproof performance, but also require transparent and bright paint film and good weather resistance. Cupping Testing Machine,Automatic Cup Test Machine,Cup Test Machine,Cup Testing Machine Jinan Chenda Testing Machine Manufacturing Co., Ltd. , https://www.jncdtester.com