The shelf life of fire retardant coating for steel structure usually refers to the shelf life of coating products which can be constructed normally under normal storage conditions and can guarantee the normal performance of coating film after construction.
Generally speaking, the shelf life of most fire retardant coating products for steel structure specified in their instructions is 12 months, The shelf life of coatings that are easy to precipitate and have slow chemical reaction in the storage process is generally specified as 6 months.
The manufacturer can refer to this standard for most steel structure fire retardant coatings. However, some coating products have such or such physical and chemical changes within a period of time after production, resulting in the shortening of storage time, For example, after most of the liquid components of the inorganic zinc silicate coating are produced, there is still a slow hydrolysis reaction inside.
The storage period at room temperature is generally 6 months, but this reaction may accelerate under the conditions of high temperature and humidity, Less than six months later, it may affect the quality of fireproof coating for steel structure.
