photo Komegata


First, a base shape is made with clay, then plaster is used to create a mold of the same shape. The mold is covered with casting material, the form is copied to create an outer mold, and then a slightly smaller inner mold is made. Molten metal is poured into the space between the outer and inner mold, and the metal is removed from the mold after it cools.
In English, this technique is called section molding because the plaster mold is broken in order to take out the piece.


  1. 1.A clay form is made. Then, an outer mold with the same shape as the clay is made of plaster.
  2. 2.An inner mold smaller than the outer mold is created, which leaves a space for metal to be poured into.
  3. 3.The mold is heated, hardened, and molten metal is poured inside.
  4. 4.Finally, the mold is broken, leaving a metal piece in the shape of the original clay form.
  • "What Are Traditional Crafts? -A Guidebook to Seeing, Learning, and Enjoying-" Edited by the Japan Kogei Association Eastern Branch. Published by Unsodo Reference artworks