Why are desiccants placed in shipping containers during sea transport?

Release Time：

2020-05-13

Container desiccants come in many types, but there is one type of container desiccant specifically designed for moisture protection in sea freight containers. This type of desiccant can absorb moisture up to 300% of its own weight and is an essential product for moisture protection in large spaces. So, what desiccant should be used for export sea freight? Below, the editor from Hengyuan Desiccant will share some insights with everyone.

There are many types of desiccants, but one type is only suitable for moisture prevention in sea freight containers. This type of desiccant has a moisture absorption rate of up to 300% of its own weight, making it an essential product for large-space moisture prevention. So, what kind of desiccant should be used for export sea freight? Let's share some information with you.

　　First, let's understand why desiccants are used in sea freight. Many people are not clear about this. They only know that using desiccants can effectively keep products dry during transportation and prevent them from deteriorating due to moisture. But why does moisture occur during sea freight? After consulting some professional materials, we found that during sea freight, due to the high humidity of the marine climate and the large daily temperature difference, the water vapor in the container condenses into water droplets, forming "container rain." Desiccants can reduce the moisture content in the container air and prevent the formation of container rain.

　　After introducing why desiccants are needed for sea freight, let's look at the previous question: what kind of desiccant should be used for sea freight?

　　The desiccants mainly used for moisture prevention in sea freight containers are container desiccants, the main raw material of which is calcium chloride. Because calcium chloride has strong and long-lasting adsorption capacity and high safety performance, it is the preferred raw material for producing container desiccants. Commonly used container desiccants include 1000g/strip, 1500g desiccant bags, and 1500g desiccant strips.

　　When using desiccants, attention should also be paid to the following: Unused desiccants should be sealed and stored after opening, rather than placed randomly. Desiccants must be stored in a sealed environment, isolated from the outside air, so that they remain effective for the next use. Otherwise, the next use will be of saturated desiccants, which will no longer be effective.

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