Okay. Is it "okay" (safe) to leave outside surface unglazed and the inside surface glaze? Since it is stoneware and porcelain mixture i would think that it okay since it is vitrified (i did the vitrification test and it has >1%) and i thought the only purpose of glaze was to protect the decoration.
Posted 06 May 2014 - 06:20 AM
I don't think that is a problem, personally. The pots if fired to temperature should work without a glaze, but a glaze makes things easier to clean, feel better to the touch especially around the lips, and deepens the surface. However, if for aesthetic reasons you with to leave a surface unglazed as in the outside, go for it.
Oh and I did delete the second posting of this query.
Posted 06 May 2014 - 06:51 AM
Thanks for deleting it. Ill be sure to put the glaze over the lip to assure coverage (for the lips) i think its interesting to have to 2 textures, smooth interior and satin on the outside
Posted 06 May 2014 - 07:25 AM
Professor Emerita Montana State University-Billings
Posted 06 May 2014 - 11:22 AM
You might try the "sharpie" test. Take a sharpie marker and draw on one of your culls, then see what it takes to remove those marks. Sometimes it's surprising how porous, non porous surfaces can be.
Black Kitty Pottery
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