In the case of damage arising in pipelines and canals (scratches, pipe displacement, root ingrowing) the Mr. PIPE-Liner, a PU foil-coated needle felt tube, will be used. In an environmentally-friendly way the Mr. PIPE-Liner is impregnated with reaction resin in a closed, air-conditioned truck on site and then cut exactly to the length of the canal section to be rehabilitated. Afterwards it is reversed into the defective pipe by stressing with compressed air via existing access openings (revision pit, on-wall unit or trenches). By maintaining this inversion pressure the initially flexible Mr. PIPE-Liner clings closely to the pipe – even in arches, displacements and changes of nominal diameters. The Mr. PIPE-Liner hardens within 2 hours into plastic (thermoset). The subsequent pressure test confirms the success of the rehabilitation measure. By camera supervision and use of a mill robot existing branch pipes are opened. 

The chemical components used by Mr. PIPE can be processed manually as well as automatically according to given mixing ratios. The demand for high, repeatable quality is supported by the use of computerised systems and control engineering (SPS).

The German Institute for Structural Engineering has issued DIBt approval (number Z-42.3-364) for the Mr. PIPE procedure concerning the rehabilitation technology of underground canals (DN 100 – 300).