Composite elastic material for modeling and method for manufacturing the same

A method for manufacturing a composite elastic material, the method comprising:

• obtaining a binding substance by crosslinking an agent with OH-groups;
• plasticizing and distributing the binding substance over the volume of a bulk material;
• fixing the binding substance on the surface of the bulk material, wherein the following are added in stages to the agent with OH-groups having a viscosity from 1000 to 1500 cps in an amount of 10 to 50% in the reactor for mixing the components, by weight of the agent with OH-groups:
• a crosslinking agent in the amount of 0.5 to 10% and a plasticizing agent in the amount of 0.02% to 2%;
• wherein the components are mixed for no more than 10-15 seconds at a mixing rate of 150-200 rpm at each stage, provided that the overall time of adding and mixing the components is no more than 40-60 seconds;
• pouring the obtained binding substance into the bulk material;
• mixing the obtained binding substance with the bulk material so that the binding substance is applied on the bulk material until the binding substance is uniformly distributed over the whole volume of the bulk material;
• spreading a mixture of the binding substance and the bulk material for fixing the binding substance in a layer of 0.1 to 50 cm in thickness;
• and
• drying the mixture in air under normal conditions.