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Underglaze too think, peeling/cracking?


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We just opened a little PYOP studio and have had some issues. We have kids that come in and like to use underglaze on bisque. Many of them put on underglaze very thick; drips and pools of underglaze. After clear dipping and firing to 06, they chip and flake off where the drips and thick layers are. I know some companies make dimensional glaze/underglaze but not sure how the overglaze works on those.  We are using mayco underglaze and clear one dipping glaze. We instruct to avoid drips and use 2-3 thin layers but the kids get excited and are sloppy sometimes. Anyway to avoid this issue? Is there a better overglaze that would correct the issue? Thanks!

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If bisque was dampened that would affect the underglaze application.

what age of child?

A few pieces of unsuccesful glazed ware to show negative results ,a few fie positive results.

There is a medium to make it more "brushable" , don't know  if Mayco already has it in it.

Vigilant teachers? Whip it away before they wreck it....

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31 minutes ago, Mark C. said:

sloppy kids?? Keep them in a large trash sack for decorating held open with a hulahoop-just a idea

Mark, you might be onto something here but please clarify...the kids or the pots? :D

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