high quality blue silica gel

blue silica gel is separated from blue gel indicatoroff colour silica gel and blue gel, the apperance is blue or light blue vitreous granule, can be separate from sphericity and nubby according to the shape of granule, it can turn into red from blue after adsorb humidity. 

 [action] 
1it is mainly used in instrumentmeterequipment, can adsorb humidity and prevent tarnishing in the airtight condition, it can turn into red from blue after adsorb humidity to indicate the environment's relative humidity intuitionstic.                2commix with the normal silica gel desiccants, indicate the desiccants' moisture adsorption degree and judge the environment's relative humidity . as the silica gel desiccant used in packing, it is broadly used in precious instruments, leather, shoes, dress,food, medicine and household electrical appliance and so on.                                                        [technical index]

[spec] 1-3mm2-5mm4-8mm
[packing] 25kg compound bag or170kg bucket .
[remark] packing and spec can be made according to users' demands.