Frequently Asked Questions

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A desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its local vicinity in a moderately well-sealed container.

Absortech’s products contain calcium chloride that aggressively capture and absorb moisture from the air. They dry the air. When the air is dry, this prevents moisture problems.

Yes, most problems can be resolved. However, some cargoes may be so wet that any reasonable number of absorbents get overwhelmed. But Absortech’s products can reliably protect even difficult cargoes that may contain tons of moisture such as agricultural products, wood products and paper.

Yes, such a difference could be all the difference between no damage and disaster. The moisture behavior of most agricultural products have a strong exponential character.

No we have not changed our product’s ability to absorb moisture. Check your container and your packaging material. Did you just start to store your pallets outdoors? Have your shipment routines changed? Does your forklift drive into the container with snow on the wheels? Did you just change supplier of crates? You cannot tell by looking whether wood or cartons are dry. The moisture properties of wood and cartons have an exponential character. It makes a huge difference if your pallets have a moisture content of 20% instead of for example 15%.

Much damage to cargo is caused by prolonged periods of elevated humidity such as container rain, container sweat or a super saturation event. It is common that cargos loaded at a cool temperature and then moved into warm conditions suffer damage in the center of the cargo. This is a result of a difference in temperature between the outside and the center of the cargo. Warm air from the outside of the cargo becomes humid as it moves into the cooler center. Absorpoles and other Absortech products protect against this effect even though the desiccants are mounted on the container walls.

Your cargo or the packaging, including container floors, pallets and crates contain moisture that can evaporate into the air during transport. Wet packaging material is the most common cause of unexpected moisture problems.

No it is not. Calcium chloride is non-toxic and environmentally safe. The brine is somewhat similar to salty seawater and may cause slight irritation as it dries your skin. We recommend that you wear gloves when handling used poles. If you would get splashed by brine just rinse it off immediately with plenty of fresh water.

Yes, Absortech products will help. This can reduce your dependence on coatings, oil-paper and plastic wraps that are expensive both to apply and remove. Your container can probably be equipped with a sufficient number of Absortech desiccants to protect against any damage at less cost than your present packaging.

Yes, as long as there is some access of air through the top and bottom of the pallets. If this is not possible, a spiked roller may be used to make holes in the shrink wrap.

Moisture diffuses very effectively, even through a seemingly compact cargo. Experience shows that our products will make a difference even to mould growth inside cartons. It is, however, necessary that some free space is left in front of each absorbent, if they hang from the container wall.

Many containers are lined with kraft paper primarily for reasons of hygiene or to simply isolate the cargo from direct contact with the container walls. The liner will act as a kind of sponge, catching and absorbing any droplets of water and then re-evaporating the moisture into the air. If a liner is used without absorbent it could contribute to a kind of pumping effect, drawing moisture out of the cargo and then releasing back into the air. When used together with Absorpoles or other Absortech products the liner will act as a buffer in extreme conditions. This will prevent any container rain from reaching the cargo. Much the same can be said for so called dew cloths.

Calcium chloride absorbs moisture even when the humidity is not very high. This protects the cargo against damage caused by prolonged periods of elevated humidity. Some kinds of steel start to corrode at 70% relative humidity, molds can grow at 80% relative humidity and at near 90% relative humidity many things can go wrong. Yet, our products based on calcium chloride are also at their most efficient protecting against condensation. Most other products, such as silica gels, are only effective in very humid conditions and for a short time period before they become over-saturated.

Moisture processes have an exponential character. That means that even a small change in circumstances can have a huge effect on the outcome. Absorbents create circumstances that allow almost all of the moisture to remain in the cargo even while the level of humidity in the air is lowered by a crucial amount, sufficient to prevent damage. It is a question of ”leverage”. This is by absorbing moisture from the air and reducing the relative humidity.

Consumer goods are often shipped with a lot of cartons and cardboard packaging.  Even if the boxes seem dry they could literally hold tens of liters of water.