Colouring Oxides
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Colouring Oxides
 Colouring Oxides, product summary
These are raw pigments from which prepared colours and stains are compounded.
Oxides may be painted directly onto clay, biscuit or unfired glazed ware or used as stains for bodies and glazes, producing the characteristic colours as described.

Remember to wear a mask when using the oxides in dry form

Manganese Compounds give brown colours in glazes. Pink, purple or plum colours can be obtained in alkaline glazes. When mixed with iron, Manganese compounds produce brown and when mixed with cobalt produce violet.
Iron compounds generally give a wide range of colours ranging from honey yellow, brownish reds, brown, black, yellow and purple depending on the firing conditions. Under reduction, a blue colour can be obtained.

Details of sample preparation

We pressed a wooden Indian printing block into soft buff clay to create texture and interest and used a square tile cutter to produce crisp samples. 

These were dried out slowly to prevent warping and biscuit fired to 1000 deg cent. 

A small quantity of oxides were mixed with water and brushed on to stain the tile with a hake and then left to dry for 30 minutes. 

The oxide was then removed from the high points with a wet sponge and glazed with Potterycrafts Ltd P2048 on the right side diagonal and fired to 1230 deg cent.

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