Blue Silica Gel can be used in moisture absorption, because of the characteristic of allochromasia, it’s usually used to indicate the moisture level of desiccant,with ordinary silica gel desiccant.

Fine Pored White Silica Gel 1.non-toxic, odorless and chemically stable. 2.Visual for the filter system.

Orange Color Variable Silica Gel 1.non-toxic, odorless and chemically stable. 2.be used as catalyst and catalyst carrier.