Why does my powder disappear when I
fire?
Powder may appear
to disappear after firing as Donna Brown found out with the pieces of her work
shown here. Glass powder is finely ground glass sheet. The full colour of glass
sheet is seen only when the glass is 3mm thick. So, to get the same intensity
of colour you need to have the powder nearly 3mm thick.
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| This image shows the powder application before firing. Picture credit: Donna Brown |
There is not
enough powder applied to the honeycomb. Everyone needs to run some tests to see
how much powder is needed for strong colour. By running some tests of different
thicknesses of powder you will be able to see how shading effects can be
produced with powder. You should run the tests on both light coloured and dark
coloured bases. Opalescent glass requires more powder than transparent. Opaque powders
are better than transparent colours to show on dark colour.
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| This image shows the result of the firing, showing a thicker application of powder was required to give the full effect. Picture credit: Donna Brown |
In this particular
application, I would put the powdered colour down and then the honeycomb grid on top for
better definition of the honeycomb.
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