The Polybag is filled with bitumen that is exactly cooled down to a temperature slightly higher than the softening point - and lower than the melting point of the plastic liner material of the bag into a special Polyolefin Bag and is let down to harden and become solid for easy handling and cold transportation.
The inner bag is placed in a very solid and firmly designed 3ply outer layer of special polymeric bags.These bags are environmental friendly and safe to handle, as it allows transportation and storage of large quantities of bitumen for long periods of time reducing energy costs and avoiding any left overs in drums or un-necessary heating like in bulk vessels. The outer layer is cut open and the inner liner melts with the bitumen during the melting process using specially designed high tech melting units which have a capacity of 4 tons per hour.
The reduction in carbon emissions due to long haulage of heated bitumen is avoided in all types of cold packing, however with the bag, additional benefit is that there are no environmental left overs and bitumen is only melted when and where needed. The bags also save about 8% of energy consumption in comparison to drums melting or Bitutainers.
The Polybag is a revolutionary system assisting in the bitumen transport. It provides a cost efficient alternative to Bitumen drums. Advantages over the steel drums: