Hollyfaucheux Posted September 5, 2016 Report Share Posted September 5, 2016 Hi, I am trying to figure out what I did! I read threw these on how to reglaze so I tried last night.. I had some canisters that I used Duncan French dementions on and when I took them out of the refire the French dementions separated bc I am totally new at this and did not know it was only for outlining and accenting... Well I outlined and filled in a small clip art with it and it turned out like picture #1 and was just about cracking off! Well I thought it was bc maybe I only put the clear overglaze around the art bc the white glaze I used did not need it... So I thought maybe refiring the clear glaze over a larger part of the whole canister would help (I did not use anything to help make the glaze stick) I just took them out and now I have THIS! Picture #2! CAN ANYONE HELP PLEASE???? Link to comment Share on other sites More sharing options...
bciskepottery Posted September 5, 2016 Report Share Posted September 5, 2016 My guess is the clear has an ingredient in it (most likely zinc) that does not work with the underglaze and the white glaze. Link to comment Share on other sites More sharing options...
Hollyfaucheux Posted September 5, 2016 Author Report Share Posted September 5, 2016 Can this be fixed?? Or is it just garbage?? I've put this clear glaze in this type of glaze before and all that happened was there was like a light like whitish outline were I stopped... Also if that was the case would it have not at least glazed clear on the French dementions?? Link to comment Share on other sites More sharing options...
GiselleNo5 Posted September 5, 2016 Report Share Posted September 5, 2016 I agree that the clear looks like it reacted with the other glazes. I would chalk this up as a learning experience and move on,say goodbye to the piece that has taught you some valuable lessons. It can be so frustrating to have results like this but it's happened to all of us. It looks like you're using premade bisque. It's worth the time and money to purchase a box of tiles or something like that and do some test firings before you glaze more pieces. For example, paint the glazes on the test tiles in strips of one, two, and three coats, and then along one side do a strip of the clear. That way you can clearly see if the glaze is reacting. Remember that Google is your friend. Sites like Big Ceramic Store and Ceramic Arts Daily have a gold mine of information. So a little research can help get better results. Link to comment Share on other sites More sharing options...
Roberta12 Posted September 5, 2016 Report Share Posted September 5, 2016 Holly, I have also found the commercial companies to be very willing to help a person. Contact Duncan Paint Store and ask your questions. If you are using their bisqueware, their glazes, they would be able to help you solve this problem. I bought a rose colored underglaze from one company and was surprised that it almost completely burned off at cone 6. I contacted the company and had a chat and found out that the rose UG does burn out or at least lighten up at cone 6. And had I read through the description before buying, I would have known that. Good luck. Roberta Link to comment Share on other sites More sharing options...
Hollyfaucheux Posted September 5, 2016 Author Report Share Posted September 5, 2016 I poured these myself as well as used that compo of glazes before... I am wondering could this happen if it was not fired long enough? Link to comment Share on other sites More sharing options...
bciskepottery Posted September 5, 2016 Report Share Posted September 5, 2016 Yes, you could have under-fired and the clear did not melt completely. How does the surface of the clear glazed area feel compared to the white glazed? Are both smooth and glossy? or does one feel rough/unfinished? Link to comment Share on other sites More sharing options...
Hollyfaucheux Posted September 5, 2016 Author Report Share Posted September 5, 2016 The clear glaze is rough and unfinished... Link to comment Share on other sites More sharing options...
bciskepottery Posted September 5, 2016 Report Share Posted September 5, 2016 Then it is under-fired and did not melt. You should be able to re-fire, hopefully getting up to the proper temperature will fix the problem. Link to comment Share on other sites More sharing options...
Hollyfaucheux Posted September 5, 2016 Author Report Share Posted September 5, 2016 That makes me feel a little better!!! Thanks! Link to comment Share on other sites More sharing options...
NancyAmores Posted September 7, 2016 Report Share Posted September 7, 2016 Duncan French Dimensions don't seem to be formulated the same as other lowfire glazes, they leave a raised surface so they're thicker than other glazes, that could be your initial issue with crawling. They're used more for a sort of tube lining-type decoration rather than in large areas of a piece. Link to comment Share on other sites More sharing options...
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