Which container desiccant are suitable for shipping containers?

Today, tens of thousands of containers are loaded and transported to all parts of the world every day. It is not only convenient and economical but also very efficient. Therefore, it has become the preferred means of transport for most exporting companies to all parts of the world. As the cargo is transported by sea in containers, it has to go through the high temperature and humidity climate, in addition to the large temperature difference. The probability of causing moisture problems encountered by cargo in sea transport is also higher than in ordinary land transport or land storage. Millions of dollars of worth of goods are shipped worldwide in containers daily. Therefore, the problem of cargo getting wet during transport is increasing. In recent years, shippers, consignees, distributors and insurers are increasingly aware of the moisture formed by containers and the threat of "container rain," which gradually increases the risk of damage to container cargo. Risk; Therefore, container desiccant are in increasing demand in the market, so which container desiccant are best suited for container shipping?

1) Choose the safest one: Normal container desiccant like silica gel and mineral container desiccant would release the absorbed moisture when the temperature reaches a relatively high level, and then the moisture in the air would turn into liquid water again. Although the Sorb-Plus desiccant bag, strip or poles are composed of calcium chloride and starch, it will gel upon absorbing moisture and will not re-vaporize.

2) Choose the most efficient: Sorb-Plus desiccant absorbs 8 to 10 times the moisture that silica gel or mineral clay adsorbs. So the amount to be used inside the 20ft container and 40ft container will be much less.

3) Choose to order from a qualified and reliable supplier: Sorb-Plus desiccant is REACH compliant, NON-DMF, and ROHS certified by SGS. In addition, the product passed at least four internal inspections within the company and strictly complied with international standards.

4) Enjoy additional service and support: First, you can timely and accurately analyze potential moisture hazards or moisture problems you face; second, provide adequate and efficient moisture solutions; be responsible for all solutions and products.

Seven tips to avoid container condensation

Container condensation or cargo sweating often occurs during cargo transportation, so it is very important to take correct and effective moisture-proof measures to prevent the cargo from getting wet. Below are some suggestions that can help exporters, importers and freight forwarders to get their goods in good condition to their destinations.

container condensation

The prerequisite for preventing container condensation is to ensure the inside is dry.

To avoid condensation in the container, the first thing to do is to ensure no visible moisture. Next, the container floor is dried (the moisture content of the wooden floor is less than 15%, and the highest should not exceed 20%).

Each container will be washed with water after unloading, and sometimes freight forwarders will use those containers that have not been exposed long enough to reach the urgent delivery date. In addition, the wet wooden floor of the container can easily increase the humidity.

Make sure the container door frame and seals are intact.

To avoid condensation in the container, it is also necessary to ensure that none of the sides of the container are corroded or have holes.

The inside of the container openings needs to be covered with masking tape. Because a large amount of air with relative humidity close to 100% at the sea surface will enter the container through these poorly sealed holes, vents and ports, to make matters worse, rainwater can enter the container through these holes and cause severe moisture damage.

Make sure the packaging materials and accessories are dry.

Many packaging materials, such as foam, paper, and wood, often contain or absorb moisture from the air. When the temperature rises, the absorbed water evaporates into the air and increases the room's relative humidity, causing mold and dampness problems.

Cargo must be kept dry.

Some goods, such as wood, agricultural products or paper, can contain tons of water. Even if only a small part of this moisture is released into the air, it will greatly increase the room's relative humidity. When the temperature drops, moisture cannot be absorbed immediately and will turn into water droplets on the load, causing various damp conditions.

Pallet and forklift wheels must be kept dry.

Wet tires will bring water droplets into the container, thus increasing the relative humidity in the container and causing moisture problems.

It is better not to charge the car on rainy days.

When the relative humidity is very high on rainy days, forklift tires and packaging materials bring water into the container.

The solution to prevent container condensation, use a special container desiccant

If each of the above six items is not done correctly, a large amount of moisture will be generated in the container, and any desiccant will be rendered powerless.

But even if you're doing well in each of the above, you could still experience moisture damage. This is because warm air can hold more moisture than cold air. So when the temperature in the container drops rapidly, the air will contain too much moisture. The excess moisture will condense into dew on the container's ceiling or wall and then drip onto the cargo, causing moisture damage. In this case, you need to use a container desiccant to absorb moisture from the air and reduce the relative humidity to avoid moisture problems.

The container space is large, and the temperature fluctuates between 10°C and 80°C. According to our decades of experience, each 20ft container must absorb at least 8kg of moisture to avoid moisture problems. Therefore, the container desiccant must absorb moisture quickly, have a strong moisture absorption capacity, and be able to work under large temperature differences. Therefore, we recommend using calcium chloride-based container desiccant because the performance of calcium chloride-based container desiccant will be better than silica gel container desiccant.

If you want container desiccants and other protective packaging products like cooling pack, floor protection roll and mattress bag you can purchase it from our website. Go and purchase it at Britwrap protective packaging.