Insulation stone wool board is made of basalt through multiple processing.

     This issue we will continue to introduce how to judge the quality of insulation stone wool board.
     Touch
     1. The fiber strength is good, the stone wool board is flexible and elastic and it is not easy to be brittle, and the overall strength of board is good when touched by hand;
     2. Press the edge of the stone wool board by hand, and the wool will not fall off;
     3. Touch the stone wool with hands, and will not feel itchy.
     Smell
     Smell the stone wool, if there is no obvious pungent odor, the stone wool is of good quality.
     High-quality exterior wall stone wool board has better thermal insulation performance, and has stable characteristics and convenient for construction. stone wool is a grade A non-combustible material, which can withstand high temperatures above 1000 ℃, can effectively avoid the spread of fire, and at the same time,it will not generate toxic gas when being in the fire, which is environmental friendly. The water hydrophobicity of stone wool is as high as 98%, and it has excellent air permeability, which can always keep the structure dry and avoid moisture and mildew.