DuPont™ Typar® is composed of thermally bonded continuous polypropylene filaments. The fibre extrusion process produces thousands of superfine continuous filaments, which pass through a DuPont patented “pre-stretch” stage. The superfine tough filaments are directionally oriented producing a fibre web sheet that is then thermally and mechanically bonded.
By varying polymer and process conditions, a range of high strength Typar® sheet structures with differing denier and physical properties can be produced. DuPont patented production technique is one of the main reasons for the unique properties of DuPont™ Typar® compared to other Geotextiles