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• Super dry is the most effective, easy to use and safe moister absorber for your containerized goods transportation.
• Environmentally friendly, disposable and fully recyclable.
• Requires no loading space, designed to fit perfectly in existing corrugated container walls.
• More cost efficient than all other existing products on the market.

• GOODS PROTECTED BY "SUPER DRY"
  • Agricultural Products : Coffee, Tea, Wood / Furniture, Spices, and Food Products
  • Leather Goods : Footwear and Garments
  • Metals & Metal Products : Machinery and Auto-parts
  • Electronic Goods : Electrical Appliances, TV and Computers
  • Textiles : Most Fabrics and Garments

   

Fundamentally there are two different kinds of condensation :

• Cargo sweat
  This occurs when moving cargo from a cold or temperate climate to a tropical one and vise-versa. The air containing moisture or water vapor condenses-out on the cargo or its packing.
• Container sweat
  This is water vapor in the air condensing or forming on the inside surfaces of the container when moving from tropical or temperate climates to cooler areas.
• Fungi, moulds and mildew do not usually cause any problems below approximately 55% Relative Humidity.
• The effect or onset of corrosion is a function of many variables where humidity and time are also present. A fixed humidity level cannot be stated because of the variables, however the lower the humidity the better.

The type of goods to be protected must be considered when determining the amount of water or relative humidity that needs to be removed. This in-turn will determine the quantity of 'Super Dry' poles required in a container to reduce and hold the humidity at a level that will not cause damage or deterioration to the products in the container.

This depends upon :

• The weather during the voyage.
• The duration of the voyage.
• Type of goods, commodities or materials in the container.
• The condition of the container.
• The sensitivity of the goods.
• Moisture inherent in the floor and/or wooden or other types of pallets or packaging materials.

The chart clearly illustrates the problem with moisture. If the container is stuffed in 90% relative humidity and 30° temperature, the air can then hold about 27 gram of water per m3. If the temperature is lowered to about 0° the air can then only hold about 5 gram of water. The differently 22 gram will fall out as water and potentially damage the goods.

Generally the relative amount of moisture / water in the goods is a factor of the type of goods and the relative humidity of the ambient air at the time of loading. Obviously, tropical air will have a much higher relative humidity content than say, air in a temperate climate. Consequently, goods loaded into a container contain moisture or water and water vapour in the air. For example, if there is 5 tons of furniture in the container, the furniture by itself would usually have moisture content of between approximately 8 and 25% depending on timber-type and the drying process used. This equates to about 400 - 1,250 litres of water. This moisture, some of which will re-enter the air inside the container, is the main source of Condensation.

One 20-foot container has a volume of approximately 33m3. 1m3 of tropical Asian air of 90% relative humidity at 32oC contains 33 grams of water per m3. This is a total of 1.3 litres of water. (At 55% RH at the same temperature the air contains 28 grams per m3. By contrast, 1m3 of European air of 100% RH at 0oC contains 5 grams of water per m3, or a total of 0.2 litres. At 55% it would contain 3 grams of water per m3). Once the ambient air temperature surrounding the container drops, 1.2 litres of water can condense on the inside walls and other surfaces within the container, i.e. packaging and goods. A relatively high humidity level corresponds approximately to ambient air of 25oC at 90% RH (relative humidity). A low humidity level corresponds approximately to ambient air of 22oC at 50 - 60%RH.

For More Information See the SUPER DRY Website