abstract |
(57) [Problem] To provide a lightweight clay that can be stored for a long period of time without cracking, breaking, or breaking even if it is considerably deformed by external force after molding and drying. . SOLUTION: The main material is composed of synthetic resin fine hollow spheres having a particle size of 20 to 120 μm, polyvinyl alcohol resin, vinyl acetate resin, and water. The compounding ratio of the polyvinyl alcohol-based resin and the vinyl acetate-based resin is desirably 10: 7 to 10: 3 by weight. |