BirchSorb hyperdesiccant is tailored specifically for shipping
containers, with a controlled absorption rate capable of handling long shipping
routes of up to 12 weeks - whilst absorbing three times its own weight in moisture.
BirchSorb absorbs three times its own weight in moisture quickly and
with no chance of moisture re-release even in hot environments.
Absorbs more than 3x it’s own weight in moisture
Reach and CLP-compliant
Safe to handle and can be disposed of with normal waste
Industry-leading cost efficiency
More effective than Silica Gel, Desiccated Clay and Calcium Chloride
Available worldwide through our global network
It’s more effective than Silica Gel, Desiccated Clay or Calcium Chloride while remaining
cost-efficient to use, and it can absorb moisture from all kinds of different materials
surfaces, including food, powders, glass, fabrics, wood, grains and more.
What is Container Rain and Why Does
Each year 10% of products delivered around the world are damaged by repair by
humidity and temperature changes creating what we call “container rain” - which causes mold,
corrosion, peeling and destroyed packaging.
Throughout every voyage, temperature fluctuations will cause humidity as the air inside a
shipping container cools. And it’s not just the air inside your shipping container that may
contain moisture - cargo with a high fibrous construction, such as clothes, furniture and
agricultural products, and many types of packaging material may also contain moisture which
is released when the air cools.
Container rain is a complex mechanism, which depends upon many factors,
transit route, time of year and cargo packaging (cardboard and wood can absorb moisture
regulate atmospheric humidity).
There are three distinct phases to RH in container shipping.
Container rain is more likely to occur in phase one and three, as this is
where the largest
changes in RH and consequently, the formation of condensation occur.
Loading and handling before sailing
Time spent at sea during shipping
Delivery and offloading at the destination
Container rain can be disastrous for a consignment, resulting in shipments being
destroyed by moisture and fungus and replacement journeys being made. However, there is a
Our unique formulation absorbs humidity from inside the container or packages and locks it away
chemically in a solid matrix. Empirical evidence shows the blend of multiple active ingredients
sophisticated packaging ensures exceptional moisture control in all three phases of the
Fast-acting components absorb moisture and begin to set in a solid matrix.
Moisture is chemically bound in an exchange between fast and slow-acting components and
release moisture back into the atmosphere.
Further moisture absorption capacity is realised as a result of the slow acting
and gives BirchSorb its extended life.
Moisture control and desiccant solutions prevent the build-up of moisture in the air,
eliminating container rain at the source. However, while traditional moisture control
are often only effective for very short periods of time, BirchSorb features an innovative
of chemicals designed specifically for long routes - making it powerful and long-lasting.
How Much Could Container Rain Cost
Is your business losing crucial revenue over container rain causing
corroded or mouldy goods? Find out exactly how much you could save in lost profit by
eliminating container rain from your shipping journeys.
Click on the 'i' icon below to discover how Birchsorb can help to protect
Get Complete Protection for Your Entire Shipping Journey
Sometimes protecting your cargo from moisture damage and destruction requires the help of an
expert. We’re committed to making sure you find the perfect moisture protection solution,
advice, technical support and product recommendations.
The Birch Chemicals line
the industry in high-quality,
high-performance products - and we're committed to continuous innovation.
With a unique on-site integrated supply chain, we have complete control over every part
formulation process, from the raw materials to the finished products. With stringent
control, high-quality materials and state-of-the-art research and development, we’re
to making every Birch Chemicals solution the best it can be.
Our Sustainability Promise
Our social and sustainability values shape everything we do. Our award-winning safety
procedures and plans have been consistently recognised on an annual basis by the Mineral
Productions Association, along with garnering recognition from the European Aggregates
Association and the Industrial Minerals Association.