Silica Gel Orange is known as Non-Indicating Silica Gel as it remains unchanged in appearance on adsorbing moisture. White Silica Gel is in the form of ivory-Orange semi-transparent round vitreous body or crystals with good absorption capacity but we cannot determine whether Silica gel has completely absorbed moisture or not. It has been confirmed that Orange Silica Gel causes no odor, toxin and pollution and is one of the most widely used damp proof agent in the world.
Blue Silica Gel is the Self Indicating Silica Gel as it is prepared by impregnating White Silica gel with Cobalt Chloride present in a concentration of an indicator, which provides the Blue color appearance. Self – Indicating Blue Silica Gel will adsorb moisture in exactly the same way as standard non-indicating (white) silica gel but will actually indicate when they are becoming saturated by changing their colour from blue to pink thus indicating that it has adsorbed moisture and needs to be replaced.
