... with any substance.(2) thermal stability, pore type silica gel can be less than the temperature of 300 °C ... to use, and other types of silica gel was able to 500-600 °C long-term ... use under high temperature conditions.(3) silica gel has a rigid frame structure, high mechanical strength, ... absorption, the look and feel, or dry.(5) silica gel with stable quality, and does not use and ...