Resistance of HOBAS CC-GRP Pipe Systems to attack by chemical agents has been determined through years of research and field experience. The polyester resins used in the HOBAS Production Process fully enclose the other pipe constituents to prevent their contact with aggressive media, thus HOBAS CC-GRP Pipe has outstanding resistance to corrosion from industrial wastewater and sewerage. The resins used in our Pipes are not affected by corrosive agents and extensive tests like the Strain Corrosion Test have been made to demonstrate the pipe`s highest chemical resistance. The results of the test show that Acid media and salinated water in combination with high temperatures have no impact on the mechanical performance. The composite can withstand even highly corrosive environments without any failure.