Friday, May 27, 2011

more pots & glaze problem

This little bowl got lots of "aaaahs" but it has a problem that isn't at first noticeable.
Photo copyrighted Barbara Rogers
Photo copyrighted Barbara Rogers
 No, it isn't that Ms. Mousie will continueally get away from the kitty.

Photo copyrighted Barbara Rogers
I fed my own kitty in this bowl, a mixture of wet and dry food with water, for 2 days.

Photo copyrighted Barbara Rogers
And now washed it to find she was able to lick off the glaze.

Several of my pots with Mexico glaze have had this "rub off" effect of the metalic grey finish.  But this has me worried about whether or not it's food safe.  Kitty sure won't be eating out of it any more.

Comments, anyone who knows what this means?

Photo copyrighted Barbara Rogers
 Here are some pics of older pots, some having been redone.  The celadon glaze has been refired, and the end results are pretty nice, I think.


Photo copyrighted Barbara Rogers

A fuit bowl, or colander, which I've enjoyed having around for a while.


Photo copyrighted Barbara Rogers

Photo copyrighted Barbara Rogers
 I like comparing the sizes of things.  The vase on the right is one I'm very attached to, with a combination glaze that's hard to get.



Photo copyrighted Barbara Rogers
Here's a comparison of the older (right) vase with the difficult to get glaze, and the newer vase with the studio celadon.  I've only made one other with the glaze combination, which I sold last year.  I've tried several times this year to get that combination glaze to work, and haven't been successful yet.  The other results are pretty nice, but not the excitment I get with this version.  But then, not every day can be exciting, can it?

3 comments:

  1. I was excited to read about your post today. I'm a student potter (taking my 4th class this summer). We just learned about Acid tests & Alkali Tests for glazes that show erosion. It was great to see pictures of a piece where it actually happened.

    Kitty's dish is just adorable. I sorry the glaze isn't working. I hope you are able to figure out what is causing the glaze issue.

    - Amika (Michigan)

    ReplyDelete
  2. Amika, what do you do for alkali tests? I've used vinegar for acid testing. Thanks for your comments.
    Barb Rogers

    ReplyDelete
  3. Alkali tests - soak the piece in 5% solution of washing soda (sodium carbonate) in warm water at room temp for 3 days to a week. Or you can simmer it for six hours...

    Let me know if you figure out what the cause was. I'm really interested.

    - Amika (Michigan)

    ReplyDelete

Thanks for making this a more personal connection by saying what you think. I'll post your comments for others to see soon!