1967 Tiki mug mold - Collecting Tiki

SB suffering bastard Member Silver Spring, MD Joined: Feb 08, 2003 Posts: 69	SB suffering bastard Posted posted on Mon, Jun 2, 2003 9:47 AM Does anyone know if you can make molds for ceramics from silicon instead of plaster? I don't know the first thing about ceramics, but I know silicon (although expensive) is durable, flexible (good for undercuts), and captures detail extremely well. Maybe a silicon mold with a plaster mother mold for support? The only thing is, I'm not sure if the plaster mold interacts with the slip---does it absorb some of the moisture from the slip as part of the drying process? If so, I don't think silicon would do that. If any experienced ceramic people know the answer, I'd really appreciate it.

Does anyone know if you can make molds for ceramics from silicon instead of plaster? I don't know the first thing about ceramics, but I know silicon (although expensive) is durable, flexible (good for undercuts), and captures detail extremely well. Maybe a silicon mold with a plaster mother mold for support? The only thing is, I'm not sure if the plaster mold interacts with the slip---does it absorb some of the moisture from the slip as part of the drying process? If so, I don't think silicon would do that. If any experienced ceramic people know the answer, I'd really appreciate it.

Post #36903 by suffering bastard on Mon, Jun 2, 2003 9:47 AM