![](/fileadmin/_processed_/1/5/csm_primus-line-eigenschaften-materialbeschaffenheit_8b7d6fd310.jpg)
Material properties
The material of the liner’s inner layer has a roughness of k = 0.028 mm.
Lines rehabilitated with it gain significantly improved flow properties.
In addition to trenchless rehabilitation further areas of application present themselves for Primus Line®:
- Increase of flow velocity
- Increase of volume flow