The invention relates to a method for the production of solvent-poor sol-gel systems, comprising the following steps: (a) hydrolyzing or condensating a silan and/or an alkoyd and/or several alkoyds from amongst Al, Ce, Ga, Ge, Sn, Ti, Zr, Hf, V, Nb and Ta, (b) adding water to the reaction mixture until phase separation begins and (c) separating the condensate phase. The invention also relates to the sol-gel system thus obtained and to the use thereof.