Workshop – Plaster sculptingPosted: January 16, 2014
Before we began our workshop on casting objects in metal, we were first taught how to mix our own plaster. While we had already mixed plaster during our slip casting workshop that was a very measured way of mixing weighing out ratios of water to plaster, we were told it isn’t as important to have such precise amounts for our metal casting, and it’s important to be able to measure things by eye.
Once you have mixed the plaster, it will begin to chemically react and become thicker. We then had to build towers with this, which was challenging as you begin with a yoghurt like substance which holds very little weight or form, but then ends with a very thick mix which doesn’t bind well with the rest of the plaster. This was the downfall of my tower, as while it was the tallest the plaster was not binding well as when it was more fluid, and eventually cracked and broke into several pieces
This technique can be used in order to create sculptures, such as this rooster made by picasso (cast into bronze)