The Aarsleff felt liners consist of a multi-layered polyester needle felt with high temperature resistant coating. Each felt liner is tailored to the individual installation at our ISO certified factory.
Aarsleff felt liners consist of:
• The static-bearing laminate is the felt layers impregnated with a synthetic resin
• An inner coating which is an integrated component of the liner, consisting of thermoplastic of the type Polypropelene (PP).
The felt laminate is built up by 1-7 layers; each sewn together by a longitudinal seam. To ensure that the laminate is homogeneous, the seam is displaced between the individual layers. The outer layer is coated with polypropylene (PP). The outer layer will become the new inside pipe wall after inversion.