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Comment by Sharon Ivy on February 18, 2012 at 4:32am

Craig, we have tried other colors, but no satisfactory results yet.  I really wanted it to work over my MC6G Licorice since it's a much smoother, nicer black, but the crackles were very wimpy over the Licorice.

When we mixed a new batch of Autumn Frost not long ago, we found it didn't break up as well as the old batch had and it was settling out really quickly.  After adding some muriatic acid, though, it went back to giving us these results.  You can tell it will work if the Autumn Frost begins to crackle and buckle up a bit while drying.  Otherwise, you get just a smooth golden glaze during firing. Has been fun to play with and my husband continues to experiment with it.

Comment by Craig Roth on February 18, 2012 at 4:21am

Super interesting!  Have you tried other colors?

Thanks for sharing.

Comment by Sharon Ivy on December 23, 2011 at 7:26pm

I think the Opulence glazes would work fine with the way you normally fire. I find them not to be too finicky. I have only tried this combo with the Std 378 clay. I'd be interested to know how it works if you do test it and use a different body. I do love the results I get, in general, with a slow cool, but who's to say yours wouldn't be perfectly satisfactory, too!

Comment by Sharon Ivy on December 10, 2011 at 2:33pm

Hi Cathy!  So glad you're giving this pottery thing a go.  Always good to have new potters interested in the craft.  I, too, am relatively new to glaze development and do have a couple I'm experimenting with, but the 2 glazes on this mug are straight commercially available glazes.  They are Opulence brand and I buy mine from Mid-South Ceramics in Nashville TN.  You can order online.  The Black is #127 and shows under the Glossy section.  Autumn Frost is #601 and is under the Reduction Look section.  I dip the entire cup in Black, let it dry just a bit, then dip just the rim area in the Autumn Frost.  That's it! 

I bisque to cone 04, then glaze fire using the schedule in Mastering Cone 6 Glazes.  If you don't have this book, I highly recommend you get it.  They have their firing schedule on their site here http://www.masteringglazes.com/Pages/faqframe.html.

Feel free to contact me with more questions.  I'm a former art teacher and love sharing anything I can to assist other artists.  Good luck!