HDPE (high-density polyethylene) coil pipes are long, coiled lengths of plastic pipe that are used in a variety of applications to supply clean water including for industrial water supply, mining and irrigation. The pipes are made from a thermoplastic material, which is extruded and then coiled onto a spool for ease of transportation and storage. They are known for their flexibility and durability due to their high tensile strength which ensures the prevention of cracks even when the pipe is used for a long time.