Lead-free, 80 mesh vitreous enamel powder. Firing range is 760-815*C, firing time varies from 2-5 minutes depending on desired effect. Medium temperature, medium expansion enamels for copper, silver, gold & some steels.
Notes on Black colour range (from Thompson Workbook)
> 1990 Grisaille Black: Is technically a deep transparent black. If applied thin or over fired, or ground thin and re-fired, it takes on a dark transparent blue look. This black is recommended as a base enamel for the grisaille technique
> 1995 Black: Is a very opaque black, but does not have the intensity or depth of black as 1990 Grisaille Black or 1996 Black
> 1996 Black: Is technically a deep transparent black. If applied thin or over fired, or ground thin and re-fired, it takes on a dark transparent green look. It leaves no bluish cast if fired thinly or over fired
> 1997 Crackle Base Black: Is a low expansion black used as a dark undercoat for the crackle technique when liquid form water base enamels are used for the second coat
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