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Underglazes Lifting On Paperclay


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#1 Isculpt

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Posted 12 June 2010 - 08:02 PM

I've been using low fire paperclay, firing it to 05 and 06, and I'm having trouble with areas of underglaze popping off after the firing. Any ideas or suggestions?

#2 Chris Campbell

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Posted 13 June 2010 - 11:24 AM

This often happens on any clay body if the underglaze is applied too thickly ...
Several thin coats which are allowed to dry between applications works better than one thick layer.

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#3 Porcenova

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Posted 29 June 2010 - 12:21 AM

[Chris is right and add glaze or frit to the mix

#4 Marcia Selsor

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Posted 01 July 2010 - 02:52 PM

I've been using low fire paperclay, firing it to 05 and 06, and I'm having trouble with areas of underglaze popping off after the firing. Any ideas or suggestions?


I use a base of 50% E.P. Kaolin and 50 % 3110 frit. Then I add mason stains in whatever intensity I desire. 2-25%
I air brush as well as brush on. This works well when applied thin on dry greenware as well as a wash on texture on bisque.
Marcia Selsor,
Past president, Potters' Council




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