Making and pouring my horn plaster mold
After discussion with James I decided to pour my plaster mold upright, cut it in half on the band saw, dry both pieces well in the kiln room and then fix it back together using ratchet straps ready for slip casting in a few days time.
My horn shape needed to be as level and centrally positioned in the mold as possible to help me cut it in half accurately once dry. It also needed to be stuck well to the mold base board as it is hollow and so would float in the plaster unless fixed in place. I used a glue gun and a piece of Styrofoam to do both these things.
I made a tube using polyurethane sheet and gaffa as the mold container.
I then positioned it over the horn, as centrally as possible, and stuck it to the base board using glue gun again.
James showed me how to mix up a bucket of plaster and then I filled the container to the brim.
It was a really tactile and satisfying process.
