Check out our Frequently Asked Questions section.

Absorpoles contain calcium chloride that aggressively grab and absorb moisture from the air making it dry. When the air is dry, moisture is no longer a problem.

Well, not all. Some cargoes may be so wet that any reasonable number of Absorpoles get overwhelmed. But Absorpoles can reliably protect even very difficult cargoes that may contain tonnes of moisture, such as coffee beans, wood products or paper.

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

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

Depending on your cargo small changes in moisture levels can have a significant impact on the quality of the product. It can change anything from the taste or odour of your goods to how the final foodstuff presents such as clumping and mould.

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

Lots, if not most damage to cargoes is caused by prolonged periods of elevated humidity without any condensation (container rain, container sweat, super saturation event). It is common that cargoes loaded at cool temperature and then moved into warm conditions suffer damage in the centre of the cargo as a result of a difference in temperature between the outside and the centre of the cargo. Warm air from the outside of the cargo becomes humid as it moves into the cooler centre. Absorpoles protect against this effect even though the poles are mounted on the container walls.

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, moulds can grow at 80% relative humidity and at near 90% relative humidity lots of things go wrong. Yet, Absorpoles are also at their most efficient protecting against condensation. Most other products, such as silica gels, are really effective only in very humid conditions and in protecting the cargo against condensation damage.

Well, they will not fall off the wall, get punctured during loading and unloading, leave a wet puddle on the cargo or run out mid voyage. They are installed in seconds without ladders and take up no cargo space. The capacity of each pole is large, so fewer are required. The cost of installation is very competitive, even against much inferior alternatives.

The number of Absorpoles required to protect the cargo depends on the cargo type, the temperature conditions during the voyage, the length of the voyage – and just how safe you want to be. For some really dry cargoes eg. steel coils or household removals, 2-3 Absorpoles are enough. For a lot of ”normal” goods 4-6 Absorpoles is about right. Some cargoes with very difficult moisture properties on long voyages may require up to 16 Absorpoles.

Lots of 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 liner is used without Absorpoles it could contribute to a kind of pumping effect, drawing moisture out of the cargo. When used together with Absorpoles the liner will act as a buffer in extreme conditions, and will prevent any container rain from reaching the cargo. Much the same can be said for so called dew cloths.

Moisture diffuses very effectively, even through a seemingly compact cargo. Experience shows that Absorpoles will make a difference even to mould growth inside cartons in the cargo. It is, however, necessary that some free space be left in front of the grille of each Absorpole. If some Absorpoles have collected less water than others inside a container, there may be a problem with air access to those poles.

Yes, so long that 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 tear holes in the shrink wrap.

You can forget about your tectyl, 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 Absorpoles to protect against any damage at less cost than your present packaging.

No it isn’t. Calcium chloride is non-toxic and environmentally safe. It is the second biggest constituent of sea-salt and is liberally sprinkled over icy roads in cold countries. The brine is somewhat similar to very salty seawater, and may cause irritation and rashes if left to dry on the skin. We recommend that you wear gloves and goggles when handling used poles, but should you get splashed by brine just wash off immediately with lots of fresh water.

The poles are made by PP/PE plastic, similar to what is used to make drink bottles, and is readily recyclable. Each part of the pole is appropriately marked for optimum recycling. Any remaining calcium chloride is easily removed by soaking the poles in fresh water.

In order to work out how many oxygen absorbers are required, use the following calculation:

Oxygen Volume (CC) = [Package Dimensions (cm) (Length x Width x Height) – Food weight (g)] x 20%

Firstly check the condition of the master bag.  The bag should be vacuum sealed and secure.  If it is no longer in a vacuum sealed condition, the product in the bag should be treated as expired and discarded.  The sachets in the master bag must be used within 30 minutes upon opening.  Otherwise the sachets absorption capabilities will deteriorate.

The shelf life of an oxygen absorber is up to 18 months.  Sachets should be stored at room temperature (5°C to 30°C) in their sealed package before use.  Do not expose to direct sunlight during storage.  Keep at room temperature for long term storage.  After 30 minutes, exposed oxygen absorbers will begin to deteriorate.  Absorbing capacity can be preserved by vacuum sealing unused oxygen absorbers.

Oxygen Absorber sachets are not recyclable. After use, the sachets should be disposed of in general waste.

Pro-Ex will not be beaten on price. If you find an identical stocked item with a competitor we guarantee to beat that price.