New Amber Lustre

As low as £39.55 £32.96
In stock
SKU
LJP-005-1
Bright Gold Glazing Lustre for firing glazed surfaces.

Lustres have dissolved metals as their essential component. They are mainly applied by brush on porcelain or ceramic objects and are always applied to already fired and glazed objects. Before firing, the objects must be left to dry for a few hours in a warm, dust-free place.

Recommended firing temperatures are:

Glass: 500°C-600°C, Orton cone SSB 022-021
Ceramics: 690°C-700°C, Orton cone SSB 018
Porcelain: 750°C-815°C, Orton cone SSB 017-015

How to apply and use:

These products are ready-to-use and are generally of a gluey, dark brown liquid aspect. Use a smooth brush. The pieces to be decorated must be well cleaned and bone dry. Gold, platinum and some lustres like copper and bronze do not need to be diluted. The brush must neither be too heavily-laden nor too little-laden and the layer applied must be uniform and fine. Too thick a layer causes burning or clouding during the firing. The other lustres can be diluted with an appropriate thinner at more or less 10%. The Mother of Pearl Iris lustre needs to be diluted at 15% at least (it burns more easily than the others if applied in thick layers. Burnt Iris results in a white powder and does not adhere). Precision scales are recommended when diluting in order to maintain the same fluidity and shade of colour.

Metallic colours for application to fired glazed surfaces. Application of lustres is possibly the most important factor in achieving the best results.

The more richly coloured lustres require a fairly thin coat while other lustres (particularly the metallic lustres) require an even thinner coat.

If lustres are applied too thickly they may give rise to problems i.e. dull finishes, flaking off etc. Lustres are best fired in a pottery kiln which is well ventilated until all the lustre gases have been burnt away otherwise the final finish may be affected.

 

More Information
Spec

Cloudy or dull lustres or metallics may be caused by insufficient ventilation or firing to an excessive temperature.

Before applying gold or any metallics, clean area with alcohol. All areas should be dry before painting with bright gold or other overglazes

 

Quantities;

5g comes in a glass bottle the liquid measuring approx 2.5cm x 1.5cm

10g comes in a glass bottle the liquid measuring approx 3cm x 2.5cm

 

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