Glass comes in crushed form....powder, or "frit" which is glass crushed into various sized pieces - fine (like sand), medium (coarse sand) and large (like small stones) frit can be purchased, or created.
Then, items of glass can be made using either powder or frit, which means there is no need to haul large sheets of glass out of units and onto tables, to be cut. Sheet glass is very heavy, and if, like me, you have problems with mobility, balance and strength, it can be exhausting to lug around. Also, I have problems with "shaky hands" (getting older is not for the faint-hearted) and my ability to cut, draw or paint is now severely limited.
BUT I can sit at a table, fill a mould with either powder or frit, and "cast" my glass pieces, which is the term used for certain methods. Then, the piece goes into the kiln, my silent partner.
In the past artists have used this technique to create wonderful pieces, via a process called Pate de Verre -but it is long and complicated. It is still used today by some marvellous glass artists . Here you see students in a class being taught how to line a plaster cast with powder:
This picture shows students creating and then filling their own plaster moulds. Making a plaster mould is a very messy, tricky, time-consuming process. Filling is not much better! sometimes a process called "lost wax" is involved, which means creating a model from wax, pouring plaster over and around the model, and then melting the wax away so that glass can then replace the wax.............need I say more. Only for the very patient. That is not me.
Here is a finished, modern piece:
Often, the plaster is "broken" away from the glass and cannot be re-used.
But for those with limited energy and stamina, there are more simple approaches to casting glass pieces. These simpler methods are personally giving me a new lease of life! I have previously shown some of the pieces I have produced, and here are more to show you. I really want to say that I am writing this mostly to encourage artists who find themselves struggling with problems following surgeries, like me ....it might encourage you to know that there may be less taxing approaches worth trying.
The bowl at the top of this page is a good case in point. Hard to believe this is just made from the crushed glass below it, isn't it! Red Frit and black powder were placed into a ceramic mould, and fired to a specific temperature which allows the glass to melt, reharden and soften into this beautiful form. That mould can be reused many times.
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