Pressing is one of methods, used for polymers processing, including for glass-fiber plastic products manufacturing. Pressing includes the following: charging of the material into the press mould, the material transformation into viscoplastic state under the temperature, forming of the product under the pressure and fixation of the product in the given configuration as a result of accelerated cross-linking of oligomers at increased temperature. The product obtained by this method shows a shape stability at increased temperature and needs no cooling before it is withdrawn from the press mould. Moulding-material may contain 30-70 % of binding agent and 70-30 % of filling material correspondingly. Moreover, hardeners, coloring agents, lubricating agents and other components can be included into the content.