What Are Packaging Desiccant Salts and What Are They Used For?
Packaging desiccant salts are used to protect goods from moisture. They are hygroscopic substances, meaning they can absorb water present in the atmosphere. These salts are essential to absorb water vapor inside packaging, preventing damage to the goods. By using these products, merchandise can be stored for a long period of time (even several years) without deterioration. They are mainly used in combination with barrier bags, especially for industrial material transport and maritime shipping.
Types of Packaging Desiccant Salts
To ensure maximum moisture protection, high-quality raw materials are necessary. Packaging desiccant salts can be based on clay, silica gel, molecular sieves, and calcium chloride.
Clay
Clay is a natural product. Clay bags are inserted into packaging to protect goods from moisture damage during transport and storage. They offer an excellent quality-to-price ratio.
Silica Gel
Mainly used in the pharmaceutical and electronics sectors, white silica gel is a synthetic product, chemically an amorphous silicon dioxide. It is characterized by a high degree of purity.
Molecular Sieves
Flexpack’s molecular sieves, available in various granule sizes, are primarily used for rapid dehydration and purification of liquids and gases. They are especially used to protect electrical equipment. FlexPack’s packaging desiccant salts can maintain moisture inside packaging below 40% at 15°C. They come in various weights and comply with all safety regulations. They provide effective protection for a wide range of products.
Calcium Chloride
Calcium chloride is a highly hygroscopic salt used only in specific industrial applications. Its absorptive capacity is very strong, and once disposed of, it must be treated as hazardous waste.
Calcium chloride is a powerful hygroscopic salt used in specific industrial applications. It is not suitable as a desiccant in the pharmaceutical industry and is prohibited in the food industry. Its use is also discouraged in domestic settings due to safety concerns.
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