Device and method for treating the surface of molded parts

A method for treating the surface of at least one molded part (10) produced in a 3D printing method, wherein:

• (a) the molded part (10) is introduced into an interior (21) of a pressure-tight container (20),
• (b) a negative pressure is generated in the interior (21) of the container after introducing the molded part (10) into the container (20),
• (c) a solvent is heated up to a specified solvent temperature, and
• (d) the heated solvent is introduced from a solvent container (40) into the interior (21) under negative pressure after introducing the molded part (10) into the interior (21) of the container (20),
• wherein the solvent container (40) is designed to be pressure-tight and wherein a negative pressure is produced in the interior of the solvent container (40) before introducing the solvent from the solvent container (40) into the interior (21) of the pressure-tight container (20);
• wherein the temperature of the molded part (10) is lower than the solvent temperature, and
• wherein the solvent is evaporated into the interior (21) or is introduced as a vapor into the interior (21) upon being introduced, said solvent vapor condensing on the surface of the molded part (10).