Spectro's color silica gel was successfully developed and put on the market in July 2019. The product is a kind of humidity indicator silica gel, which indicates the humidity according to the different moisture absorption display color of the color silica gel under different humidity. The product does not contain cobalt element. It is a green, non-toxic and harmless color silica gel, widely used in various industrial and civil fields. In line with the export requirements of the European Union and the United States, it is a new era of discolored silica gel.
