Question:
How do I fire lustre?
Troubleshooting: Dull lustres/metallics
Cloudy or dull lustres or metallics may be caused by insufficient ventilation or firing to an excessive temperature.
Troubleshooting: over a textured surface.
If overglazes are applied to a textured surface and they fire off the raised areas, but fire perfectly in the recessed areas, this usually indicates an over-application of colour. The weight of the material applied pulled its off and onto the recessed areas.
firing lustre
When firing lustre, do not place the piece to be fired directly on a hot bottom or shelf as the radiation of the heat will drive the lustre away.
Lustres and china paints
It is best not to fire lustres with china paints as the turpentine in the china paints may distort your lustres.
a green glaze that won't take a gold firing?
Do you have a green glaze that won't take a gold firing? Try firing it at a higher or lower temperature than your usual gold fire (cones 018-022)
Gold pens
You can apply gold using a pen designed for that purpose.
Ventilation
Ventilation is the key to satisfactory firing of metallics and lustres. The kiln should remain open until all smoke and colour have ceased.
Troubleshooting: hairline cracks
If a piece removed from the kiln that has had gold lustre applied, has hair-line cracks, it has been over-fired.
Ceramics Frequently Asked Questions
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automatic kiln sitter, should I trust it?
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How do I load my kiln for a glaze firing?
| Guru Spotlight |
| Jolyn Wells-Moran |
