I equipped myself again to be able to cast the porcelain lamps. I looked for the bowls, the strainer, a silicone ladle and after a few turns between stores and Tkmax to find the right silicone ladle, I finally poured both molds.
I always have the same problem with the upper part of the Nissen lamp because it’s hard to get out of the mold. I have to buy some talcum powder so that it’s easy not to stick too much to those fragile walls.
I kept the same time I studied before the quarantine: 20 minutes of porcelain absorption in the mold.
I changed the opening time of the mold from 4 hours to 12 hours, the result was better but still a small fracture in the upper part of the Nissen Lamp. Naturally with the siren instead there were no problems.