Milan, Italy -- A thermoplastic polyurethane (TPU) designed and made by an Italian firm was used to make the zip for a transportable water bag that can hold 2m litres of water.
The two stage project - Refresh and XXL Refresh - received over EUR1m in funding from the European Commission before the integrity of the fresh water bags was tested by being towed in the Mediterranean Sea near Tarragona, Spain.
Gianfranco Germani, of Ziplast, said his firm used Lubrizol's polyether Estane which was processed by extrusion to make the zips.
The water bags can be transported by tug boat and create fewer emissions compared with other water transporting methods, according to a non-profit Spanish research organisation Aimplas involved in testing the product.
The plastic bags are 60 metres long and scalable up to a 5m litre payload, Aimplas said.
Several companies worked to create and test the container innovation including Industrial Sedo and Tecnodimension both based in Spain. D’Apollonia in Italy, Turkish firm Turgutreis and Safibra from the Czech Republic.
D’Apollonia, Safibra, Ziplast, Turgutreis, ndustrial Sedo, Tecnodimension, Lubrizol, Aimplas