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Sdp-m03

SuperDryPak™ Safe Indicating ...Before exposure

Sdp-m04

SuperDryPak™ Safe Indicating ...After exposure

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Indicating silica gel is a silica gel bead or granule that has been washed with a concentration of cobalt chloride ( a heavy metal salt). The cobalt chloride is a deep blue colour when it is dry and turns from blue to purple to pink as it becomes saturated with moisture. Typically, the colour changes as the desiccant goes past 8% moisture levels (by weight) and indicates it is time to replace the desiccant. The most typical use for an indicating silica gel is for a moisture sensitive product that will be inspected regularly as it gives a quick visual indication of how well it is doing. Because of the addition of cobalt chloride, indicating silica gel should not be used in contact with products for consumption such as food or pharmaceuticals.

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