No matter in warehouse or shipping container cargo storage, all are
very sensitive to cargo moisture corrosion. Such as damaging
moisture will result in fading color, changing texture, geting rust
and so on.
Especially in a container ocean shipping transport, there are a big
moisture content in a ocean shipping container and a huge
temperature fluctuation inside. Because during ocean transport,
passing through different climate zones, and day to night
temperature fluctuation,when air warms up, the water vapour content
increase which produces condensation when the air cools down again.
The central fact is that warm air is cooled, it becomes more humid,
and if it is cooled enough, some of the moisture may rain out and
condense directly on the shipping cargo outer package.
Drops of container rain drips down from the container roof, that
will cause lots of moisture corrosion problem. Such as the salt
water will change cargo’s quality and texture, like the salt water
will change the density of wood characteristic, also resulting in
clothes garments fading color, peeling label and so on.
Is silica gel desiccant can keep products dry such as for grain
leather and metal product conquer moisture corrosion problem?
Actually, we don’t recommend silica gel desiccant for cargoes with
higher moisture content, such as grain leather products against
moisture corrosion problem.
Even though the traditional silica gel desiccant with very cheap
price, but its moisture absroption capacity is very limited. Silica
gel desiccant with lower moisture absorption capacity for less than
10% moisture of its own weight, and will stop working entirely
after 2 weeks.
We recommend TOPDRY calcium chloride desiccant with powerful
moisture absorption capacity and longer absorption period, will be
the best moisture drying agent for cargoes against moisture
corrosion, such as for grain rice, cocoa beans or industrial
products such as leather or metal cargoes against humidity problem.