Why does the mold glue do not dry on the surface and inside?

Condensation mold silicone rubber is cured by absorbing moisture in the air. In the process of making silica gel, the moisture is evaporated to dryness

without adding proper amount of moisture. This phenomenon will occur.

Solution: This phenomenon is not a product quality problem, but because the moisture is not controlled, the storage period of the silica gel is increased, and the shelf life is long,

some phenomena will appear. As long as the silica gel is used, an appropriate amount of 0.05% water is added and mixed evenly. Some situations can be resolved.