What is glass fusing?

Think about hot toffee! 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 12 to 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 ‘toffee’ element as glass becomes softer and it will begin to flow and fuse 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.

Alternatively, having formed a piece of fused glass, this 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 various methods to shape the glass into bowls, sculptures or jewellery pieces. Several firings may be required to achieve the desired end product.

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