Polypropylene pipe

Polyvinyl Chloride Pipes (PVC ) and PPR pipes can be manufactured with or without plasticizers. Examples of the former are garden hose, floor tiling and household articles. The addition of plasticizers increases material flexibility, but leads to some deterioration in other physical properties. Furthermore, some plasticizers display a tendency to migrate, escaping in the course of time so that the plastics becomes brittle. For these reasons, no pastiches are used in the manufacturer of PVC pipes for water mains and sewers. In this respect, the material is characterized as rigid PVC and this variety is termed PVC-U ( unplasticized PVC) according to ISO.