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Introduction to Flame Retardants：
Inherent FR：Inherent FR (Flame Retardancy) refers to the flame - resistant property that is an integral part of a material's molecular structure, rather than being added as a surface treatment or post - applied coating. Unlike conventional flame - retardant methods, inherent FR materials do not rely on additives that might leach out over time or lose effectiveness after repeated use or washing. This built - in characteristic enables the material to continuously resist ignition, self - extinguish rapidly once the heat source is removed, and limit the spread of flames. In environments where fire safety is of utmost importance, such as hospitals, schools, and public transportation, inherent FR materials offer unparalleled reliability. They provide long - term protection against fire hazards, ensuring that equipment, furnishings, and textiles maintain their flame - resistant capabilities throughout their lifespan, thus significantly enhancing overall safety and minimizing the risk of fire - related accidents.
FR coated：FR coated, or flame - retardant coated, refers to a method where a flame - retardant layer is applied onto the surface of a base material, endowing it with fire - resistant properties. Unlike inherent FR materials, whose flame - retardancy is an innate part of their molecular structure, FR coated materials rely on the addition of flame - retardant chemicals in the coating formulation. These coatings typically contain substances such as halogen - based compounds, phosphorus - based additives, or intumescent agents that act to suppress combustion. When exposed to high heat or flames, the FR coating reacts by forming a protective char layer, isolating the base material from the heat source, diluting combustible gases, or interfering with the chemical reactions of combustion. This approach offers flexibility, allowing manufacturers to apply flame - retardancy to a wide range of existing materials. It is commonly used in industries like furniture upholstery, automotive interiors, and construction fabrics, providing an additional layer of fire protection. However, the effectiveness of FR coated materials may be affected by factors such as wear and tear, repeated laundering, or environmental exposure, necessitating proper maintenance and sometimes re - coating to ensure continued flame - retardant performance.
Flame retardant standard：BS5867 , BS5852 , BS7177 , M1 , B1 , CPAI-84 , EN14116 ， EN11611 , JISK7201 , JISL1091 , NFPA701