Paper Clay For Throwing?
Posted 26 March 2014 - 05:11 PM
Also, am I correct that the shrinkage rate of the clay body would be unchanged by the addition of paper fibers/dust?
Posted 26 March 2014 - 06:03 PM
I see paper clay as an option to avoid green strength issues under very specific circumstances. It tends to create issues with plasticity and movement that would likely be unfavorable for throwing. The shrinkage of the body would only be effected in cases of large amounts of fiber additions. The materials would act the same, but the aggregate would reduce the relative amount of clay shrinking.
What type of item are you making that you anticipate needing to throw paperclay?
Posted 26 March 2014 - 07:33 PM
There are downsides to functional wares being made with paper clay. The burnt out fibers leave more holes for water to get in even after glazing. Concerns range from seepage to problems with 'dishwasher to microwave' type heating.
Contemporary Fine Colored Porcelain
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Posted 26 March 2014 - 08:10 PM
Marcia Selsor, Professor Emerita,
Montana State University-Billings
Fulbright Scholar to Spain 1985-86, Uzbekistan 1994
Posted 27 March 2014 - 08:23 AM
I have been doing some testing on paper clay. One thing I have noticed after mixing a fresh batch it works better for me the same day or the next day, after that it gets a bit wonky on the wheel, but is still good for hand building.
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