Damages in sewage pipes require efficient methods for trenchless and partial rehabilitation. Short distances are usually repaired with impregnated glass fiber fabric mats via inflatable packers (short-liner), longer damages with impregnated and inverse implemented polyester needle felting tubes (in-liner). Both techniques have special processing requirements to the resin, e.g. initial viscosity, reaction speed, pot life and gelation time are important for sufficient impregnation of the reinforcing material, accurate application and cycle time. Beside epoxy and unsaturated polyester resins silicate resins are widely used in trenchless sewer rehabilitation. Such two-component water-in-oil emulsion resins are using waterglass as silicate source, whereas organic phosphate esters are used as emulsifiers, phase transfer agents and plasticizers at the same time. In a two-step indirect reaction a primary amine is built from isocyanate and water (from waterglass), which afterwards reacts with remaining isocyanate to build the polyurea thermoset. Emerged CO2 gets bonded directly to build an alkali metal (bi)carbonate which is accompanied with in-situ formation of polysilicate caused by silification of waterglass[1]. Because of the unfavourable diffusion of chemically non-bonded phosphates and the substitution of dangerous chemicals through REACH requirements (EG 1907/2006) this work focusses to replace phosphates by vegetable oils and their functionalized derivatives. These fulfill the functions of emulsifiers, plasticizers and phase transfer agents, and also get chemically bonded to the matrix and raise the bio-content. This work demonstrates that innovative, phosphate-free, so called 2P resins (polyisocyanate, polysilicate) have comparable processing conditions and mechanical properties than market available reference resins. [1] Castellà, N., Grishchuk, S., Karger-Kocsis, J., Schehl, M., J. Appl. Polym. Sci. 2011, 119, 7-14.