Silica gel is a granular, glassy, porous form of silica from the synthetic preparation of sodium silicate. Silica gel has a higher hardness than ordinary household gel-like gelatin and agar. It is a naturally occurring mineral refined and processed into either granular or beaded form.
custom silicone， As a desiccant, it has an average pore size of 2.4 nanometers and has a strong affinity for water molecules
Silicone gel is a small (usually 2×3 cm bead) file package that is most commonly encountered in daily life. In this form, it is used as a desiccant to control local humidity to avoid damage to some goods or degradation. Since silica gel can add chemical indicators and absorb water very well, silica gel bags usually have warnings that remind users not to eat.
like：
