Method for producing three-dimensional (3D) molded article using room temperature-curable organopolysiloxane composition, and three-dimensional (3D) molded article produced using said method

Abstract

Provided is a method for producing a three-dimensional (3D) molded article, with which it is possible to obtain a molded article that exhibits excellent weather resistance and durability and can be cured without using special energy in order to be cured by heating, irradiation with light, or the like.　The method for producing a three-dimensional (3D) molded article has the following steps: i) a step for forming a first layer by coating a first room temperature-curable organopolysiloxane composition having a thixotropic coefficient of not less than 5 and less than 10 on a substrate using a 3D printer; ii) a step for obtaining a partially cured first layer by leaving the first layer under non-heating conditions; iii) a step for forming second and subsequent layers by coating second and subsequent room temperature-curable organopolysiloxane compositions having a thixotropic coefficient of not less than 5 and less than 10 on the partially cured first layer using a 3D printer; and iv) a step for obtaining partially cured second and subsequent layers by leaving the second and subsequent layers under non-heating conditions.

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