marci Boskie's Mama =^..^= on thu 11 may 06
Paul Lewing wrote:
>There's a thing that happens to china
>painted pieces sometimes, and it's more likely to happen on used china than
>on new. Sometimes a network or smudge of black color will appear between
>the clay and the glaze in spots. China painters cal this "mildew" because
>that's what it looks like.
Hi Paul .
This " mildew" only happens on bone china or pieces where the bisque
is underfired. I have never seen it happen on commercially made or
properly vitrified porcelain ....Scraping or sandpapering the dry
foot on bone china to open up the pores of the clay and refiring to
cone 1 or 2 ( for bone china) or cone 6 ( for porcelain that has
been underfired) should get rid of the mildew...
Marci Blattenberger Boskie's Mama =^..^=
http://www.marciblattenberger.com
marci@ppio.com
Porcelain Painters International Online http://www.ppio.com
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