Moisture-proof beads are a highly reactive adsorbent and are the most commonly used desiccant. It belongs to amorphous material and its chemical formula is mSiO2.nH2O. It conforms to Chinese chemical standard HG/T2765-2005. It is the only FDA approved dry cleaner that can be in direct contact with food and drug products. The moisture-proof beads have strong moisture absorption capacity and strong adsorption performance, and will not soften or liquefy even if the moisture-proof beads are all immersed in water. It is non-toxic, odorless, non-corrosive and non-polluting, so it can be in direct contact with any item.
Blue silica gel, orange silica gel, non-indicating silica gel
1) effectively absorb more than 30% of its own weight of water;
2) After the moisture absorption, it does not change its shape, and it is non-toxic, harmless and pollution-free;
3) Good thermal stability and strong mechanical strength;
4) Widely used, shoes, hats, leather, handbags, food, medicine, hardware, toys, bamboo and wood products, instruments and meters, electronic appliances, etc. can be used.