Buildings in the natural environment, will inevitably contact with various substances in the natural environment. The erosion of buildings by natural weather is particularly obvious. The refractory rock wool board has good water repellency, and the water vapor brought by rain and snow in nature will not enter the room through the rock wool board, nor will it be absorbed by the refractory rock wool board, so that the thermal insulation performance of the board can be guaranteed, which is also an advantage of refractory rock wool board.

     Today's high-quality refractory rock wool board is made of basalt and other natural ores as the main raw materials. After the melting, the raw materials are spun into 4-7μm non continuous fiber through international advanced four-roll centrifugal wool making process, and then add a certain amount of binder, dust-proof oil and water repellent to the rock wool fiber. After sedimentation, curing, cutting and other processes, a series of products with different densities are made according to different purposes. The main difference between the fireproof rock wool boards on the market is the physical distribution of the fibers, which are divided into layered and folded, that is, the so-called horizontal and vertical fibers.
     Next issue we will continue to introduce refractory rock wool board for external wall insulation. Please stay tuned!