Monthly Tech-Tip | No tracking! No ads! |
Left: Dry mug. Right: Glazed and fired to cone 6. This is Polar Ice porcelain from Plainsman Clays. It is very vitreous and has the highest fired shrinkage of any body they make (14-15% total). This is the highest firing shrinkage you should ever normally encounter with a pottery clay.
Not much. These mugs were exactly the same height before a bisque firing to cone 06. The clay is a porcelain made from kaolin, feldspar and silica.
Glossary |
Vitreous
|
---|---|
Glossary |
Firing Shrinkage
During drying, clay particles draw together and shrinkage occurs. During firing the matrix densifies and shrinkage continues. More vitreous bodies shrink more. |
Buy me a coffee and we can talk