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Translucency of Polar Ice compared to another porcelain at cone 6

On the top you can see the color difference. The other porcelain is made from a low TiO2 mix of typical North American kaolins, feldspars and bentonites. Bottom with a light inside: Polar ice on the left is far more translucent. Yet it is not overly mature, it resists fired warping remarkably well. And it is also more plastic (which seems impossible). There is a secret to the translucency that goes beyond the fact that it employs New Zealand kaolin and the percentage of feldspar it has. But I cannot tell you. But if you read this site carefully you will discover it in the most unlikely place!

Translucency of Polar Ice compared to another porcelain at cone 6

Related Pictures

Polar Ice vs. Chinese superwhite porcelain

These are fired at cone 6. The Chinese body was so short that I had to add 3% VeeGum to make it plastic enough to throw thin-walled. However, even with the fluxing action of VeeGum, it is only slightly translucent (even in the bright sunlight). When it comes to whiteness, however, the Chinese porcelain is somewhat better.

Links

Glossary Translucency
A highly sought after property in porcelain, they are fired close enough to melting to pass considerable light. It can be very difficult to fire translucent ware without it warping.
Glossary Porcelain
Standard porcelains used by potters and for the production of sanitary and table ware have surprisingly similar recipes. But their plasticities vary widely.


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