Aihua Paper / Water Based Ink / Strong Seal Strength-Excellent transparency of the Aihua Paper makes easy to see the changes of indicating silica gel during the absorption process. Aihua paper has strong breathability smooth surface with harmful substance, also has good heat resistance and water vapor permeability greater than or equal to1100g/m2 in 4H. Strong seal strength to ensure rigid seal, so as to make it useful for small storage situations. The printing ink on the inner layer will not be in direct contact with reagent products. Aihua Paper / Water Based Ink / Strong Seal Strength-Excellent transparency of the Aihua Paper makes easy to see the changes of indicating silica gel during the absorption process. It has strong breathability smooth surface with harmful substance, also has good heat resistance and water vapor permeability. Strong seal strength to ensure rigid seal, so as to make it useful for small storage situations. The printing ink on the inner layer will not be in direct contact with reagent products. It is completely safe to be in physical contact with any medicine, food, diagnostics reagent and health care products. Pure White Silica Gel Beads With 10% Indicating Silica Gel Beads-White silica gel has strong moisture adsorption capacity, while orange indicating silica gel reminds you to replace desiccant when necessary. Desiccant Packs are cobalt chloride-free, non-toxic, non-hazardous and DMF-free. Orange indicating beads will change color to green after absorbing moisture. Silica gel raw is stable both physically and chemically. It is not combustible or corrosive. High Quality Standard For Moisture Content & Moisture Absorption Rate.