Can I underglaze on top of clear glaze?
Posted 27 May 2012 - 08:21 AM
The pots were fired again in an attempt to reduce the milkiness, and re-firing did help, but the pots still look terrible.
I like using 04 underglazes. Can I paint underglazes over the milky clear glaze and refire the pots, thus hiding the milky clear coat? Each pot took about a day to fashion and I really want to rescue them.
Or should I refire the pots again and maybe again, and hope the milkiness diminishes enough to the point where the pots look okay?
Is there some other solution better than the ones I mentioned?
Can anything at all be applied over a clear coat? Or is a clear coat the final step in the pottery-making process, like varnish on an oil painting?
Posted 27 May 2012 - 09:09 AM
Another option might be using china paints and then firing to a much lower temperature . . . that allows the china paints to fuse to the glaze surface but not completely re-melt the clear glaze. You might have better control covering the areas of milkiness you want to cover, while leaving other areas okay.
Posted 27 May 2012 - 10:12 AM
I agree that china paint or OVER glazes would work better. You could try making some majolica overglaze decorating colors with stain and Frit 3110 or Gerstley Borate. 1 part stain to 4 parts grit or GB. fire to ^04.
Posted 27 May 2012 - 10:52 AM
There seems to be a law in pottery that the more you love the work, the more it will punish you
You are spending days chasing a crack ... By that I mean the time we have all spent trying to repair a crack in greenware instead of just sending it to reclaim and making another piece. That glaze is not gonna look better any time soon ... even if you repair it with paints and glazes it will never look the way you dreamed it would before you glazed it. It will disappoint you every time you open the kiln on a refiring ... Every time you see it on a shelf.
Take this as a lesson learned, make another batch ... your experience with this load will make the next one even better.
Contemporary Fine Colored Porcelain
"My Artwork would not exist without a thriving global pottery community.
In the isolation of a studio, an artist can begin to feel like an island, but in truth
we are all part of archipelagoes; chains of islands loosely connected by a stream
of information that enhances our Artwork.”
Posted 27 May 2012 - 11:00 AM
Hi. This is probably not the answer that you would want to hear......... but it is one I give to students many, many times when similar occurances happen:
Just make the entire pieces all over again. They will almost always be better executed when you re-do the ideas that you had the first time, as you keep the successful aspects and slightly refine the parts that need a bit of addressing. I am sure that you learned some things in the original making process, and that you looked at some aspects of the almost finished pieces and wished they were slightly different.....but they were now "done".
Now build upon those achievements and move the pieces to the next level. Fixing the glaze application issue is just ONE aspect that will get better. It will be a much more productive use of your valuable time than trying to "save" the originals.
Unless you have made the latest incarnation of "The Scarab Vase"........ this "do it over again" approach is almost always the way to go. It is basically the concept of "working in series"...... which is a very important concept to learn to exploit in your development as an artist.
Immediate Past President; Potters Council
Professor of Ceramics; New Hampshire Insitute of Art
Posted 27 May 2012 - 04:58 PM
Never smash a disappointing piece until a few months have passed!
Posted 27 May 2012 - 07:49 PM
Posted 28 May 2012 - 09:42 AM