The difficulty of the fusing consists in controlling the cooking of the parts to avoid the appearance of the tensions in the material. For that, it is necessary to take into account the nature, the dimension of the piece and the thickness of glasses that you amalgamate. The compatibility of glasses: The used glasses must be compatible; for that, they must belong to the same category and have the same dilation coefficient. They are available in various forms: glass leaves, crushed glass of varied granulometry (calcinings), wire of glass (stringers). A more coloured glass overheats more. The temperature of the glasses is thus not identical. The tensions of the glass can be measured with a stressometer.
