What is glass fusing?
Think about warm chocolate! Fusing is a controlled way of melting glass inside a kiln and this can be done in a variety of ways using different combinations of temperatures and methods. A single firing will take approximately 14 hours from closing to opening the kiln lid.
When heated to approximately 750° Celsius the process will round the edges and corners of the glass and pieces will start to fuse and bond together. At temperatures of around 810° Celsius there is far more of the ‘melting chocolate’ element as glass becomes softer and it will begin to flow and settle to a flatter surface which usually levels to a consistent thickness of approximately 6mm.
At higher temperatures of around 900° Celsius the glass becomes more liquid, and can be melted enough to flow through small apertures of approximately 10mm and upwards.
The first part of the process forms a flat piece of glass which can then be shaped by using purpose made moulds for the glass to ‘drape’ over or to ‘slump’ into. It is also possible to construct individual moulds to shape the glass. Several firings may be required to achieve the desired end product.