Each year, approximately 10% of cargo worldwide is damaged by container rain – condensation that occurs within a shipping container due to humidity or temperature changes during transit.

Container rain can lead to millions of pounds lost in revenue, with destroyed or damaged cargo or packaging, loss of reputation and profit lost on replacement goods. However, it is possible to protect cargo from container rain during shipping.

One of the most foolproof ways to protect your cargo is with our hyperdesiccant, BirchSorb, which has been specially designed to prevent container rain. Effective for up to 12 weeks, BirchSorb is capable of absorbing 200% of its own weight in moisture, and is more effective than silica gel, desiccated clay or calcium chloride.

However, BirchSorb can also be used in tandem with other methods.

Container liners are often used in conjunction with moisture control solutions, reducing the humidity inside a shipping container.

Proper ventilation and insulation can also greatly reduce the amount of moisture inside the air of a container, keeping the contents of the cargo warmer than what is known as the “dew point” – the point at which moisture in the air becomes container rain. While insulation keeps the interior of containers warm, ventilation works by funnelling warm air from outside through the container.

However, while ventilation can lead to a reduction in moisture, it can also be a double-edged sword: in wet conditions, ventilation can instead pull humid air into the container, making condensation worse.

Ultimately, using a high-quality desiccant is an important step in protecting your product from container rain – which is why we recommend using BirchSorb in tandem with liners, ventilation or insulation.

BirchSorb is available worldwide – and now comes with a free trial, giving businesses around the world the opportunity to find out why so many companies rely on it.

About the author
By Birch

Global product, worldwide support

We work with our specialist distribution partners to offer unparalleled service and supply globally, whatever your requirement. If you want to talk rubber or plastics, coatings or adhesives just get in touch. Our distributors can speak your language - literally.

About Birch Chemicals


Sign up to the Birch Chemicals newsletter and stay up to date with industry news.

This field is for validation purposes and should be left unchanged.