Silica gel with indicator

By adding a indicator to the silica gel the colour indicates when the beads or granules are becoming saturated by changing from orange to light blackish-green, therefore visually indicating the relative humidity of the environment.. After having reached the final green colour, i.e. after saturation, the silica gel must be replaced or regenerated.

Silica gel from Silcarbon applies a safe substance as an indicator, which is not classified as toxic according to the current EU legislation. No cobalt chloride is used.