PottaFella Posted November 23, 2016 Report Share Posted November 23, 2016 Cleaning up a pot I just dipped in a transparent stoneware glaze that I purchased in powder form and mixed to a creamy consistency. I caught the wet pot on the corner of some newspaper I had down so it needed quite a bit of retouching. BUT it was so much nicer to deal with than my normal powdery cone 6 recipes. Where I scraped some dried glaze off it came away almost like carving clay - a pleasure to work with! Are there 'secret' ingredients manufacturers put in their glazes to make them more plastic and easier to handle? Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 23, 2016 Report Share Posted November 23, 2016 I think glazes that have a good amount of clay in them are easier to work with. frits can be persnickety. Just me 2 cents. Marcia Link to comment Share on other sites More sharing options...
glazenerd Posted November 23, 2016 Report Share Posted November 23, 2016 Commercial glazes can have clay/s, gums, or other additives to keep them uniformly dispersed. Although I cannot prove it, I have long held the suspicion that they are also using a dispersing agents. Nerd Link to comment Share on other sites More sharing options...
Guest JBaymore Posted November 23, 2016 Report Share Posted November 23, 2016 Commercial glazes can have clay/s, gums, or other additives to keep them uniformly dispersed. Although I cannot prove it, I have long held the suspicion that they are also using a dispersing agents. Nerd Yup....... There are two distinct parts about studying glazes........ ONE is molecular formulas. But the OTHER ... and often overlooked side.............. is the materials sourcing. (remember packing density?) BOTH have an impact. The second part there has a huge influence on 'what's in the bucket'. We can ALSO adjust a lot of what is in the bucket... by organic additives... that do not remain after firing. best, .....................john Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 23, 2016 Report Share Posted November 23, 2016 Since I don't use commercial glazes , I was referring to my own observations about some glazes really are more difficult than others. The commercials glazes as John and Nerd expressed have more complicated issues. Marcia Link to comment Share on other sites More sharing options...
glazenerd Posted November 23, 2016 Report Share Posted November 23, 2016 Marcia: I think you over-looked this: glaze that I purchased in powder form John: I have been experimenting (my call in life) with mixing stains in a premixed solution of water and 1% T-gum. The solution has a light syrup consistency: which does an excellent job of dispersing and suspending stains uniformly. I have noticed over the years that stains have the bad habit of wanting to settle. Nerd Link to comment Share on other sites More sharing options...
Mark C. Posted November 23, 2016 Report Share Posted November 23, 2016 (I have noticed over the years that stains have the bad habit of wanting to settle.) Try Magma from big ceramic store-it will keep rocks in suspension. I love this product when I need to keep glazes from settling. Since you are working with frits or will be so much you also NEED this product Nerd Link to comment Share on other sites More sharing options...
Guest JBaymore Posted November 23, 2016 Report Share Posted November 23, 2016 Marcia: I think you over-looked this: glaze that I purchased in powder form John: I have been experimenting (my call in life) with mixing stains in a premixed solution of water and 1% T-gum. The solution has a light syrup consistency: which does an excellent job of dispersing and suspending stains uniformly. I have noticed over the years that stains have the bad habit of wanting to settle. Nerd If you are using these stains for expressive decorative brushwork (painting designs), try also adding a very small amount of ball clay, a tiny bit low melting frit or a tiny bit of feldspar (based on firing range), and some glycerine. best, .................john Link to comment Share on other sites More sharing options...
neilestrick Posted November 24, 2016 Report Share Posted November 24, 2016 I see a lot of glaze recipes that are low in clay content, and they tend to be powdery when dry on the pot. I always shoot for at least 10% clay in my glaze recipes. I've got some that are closer to 20% clay, and they are super easy to handle. Link to comment Share on other sites More sharing options...
PottaFella Posted November 24, 2016 Author Report Share Posted November 24, 2016 I see a lot of glaze recipes that are low in clay content, and they tend to be powdery when dry on the pot. I always shoot for at least 10% clay in my glaze recipes. I've got some that are closer to 20% clay, and they are super easy to handle. That's very useful information Neil – many thanks! Link to comment Share on other sites More sharing options...
Chilly Posted November 24, 2016 Report Share Posted November 24, 2016 transparent stoneware glaze that I purchased in powder form and mixed to a creamy consistency. Are you going to share your supplier with the rest of the UK who need glazes that play "nice"? Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 24, 2016 Report Share Posted November 24, 2016 Marcia: I think you over-looked this: "glaze that I purchased in powder form" Powder form ? Are they pre-mixed? Are they commercial. I mix chemicals like Silica, Epk, etc. I know what is in the glaze. John: I have been experimenting (my call in life) with mixing stains in a premixed solution of water and 1% T-gum. The solution has a light syrup consistency: which does an excellent job of dispersing and suspending stains uniformly. I have noticed over the years that stains have the bad habit of wanting to settle. Nerd Link to comment Share on other sites More sharing options...
PottaFella Posted November 26, 2016 Author Report Share Posted November 26, 2016 transparent stoneware glaze that I purchased in powder form and mixed to a creamy consistency. Are you going to share your supplier with the rest of the UK who need glazes that play "nice"? Chilly, the glaze came from Bath Potters - it's their transparent stoneware glaze powder B288 – very creamy so I think it can probably be diluted quite a bit, else it may go on too thick. I've just fired this on Scarva ES5 at cone 7/8 and it's come out lovely - time will tell if it crazes. Link to comment Share on other sites More sharing options...
Chilly Posted November 26, 2016 Report Share Posted November 26, 2016 Oddly, I taught an after-school pottery club and they had some really (really) old ^04 glazes from Bath that were lovely to use. They didn't pan hard, went on nicely, glazed as expected. I've been so used to Potterycrafts/Amaco/Duncan problems, I'd forgotten about Bath. Have to place an order. Wonder what their white is like...... Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 28, 2016 Report Share Posted November 28, 2016 Chilly, Have you read Michael Bailey's book on ^6 Glazes? He is based in Uk and the chemicals are from Uk as well. Marcia Link to comment Share on other sites More sharing options...
Chilly Posted November 28, 2016 Report Share Posted November 28, 2016 Chilly, Have you read Michael Bailey's book on ^6 Glazes? He is based in Uk and the chemicals are from Uk as well. Marcia Not yet, thank you, just put it on my xmas pressie list. Link to comment Share on other sites More sharing options...
Chilly Posted January 10, 2017 Report Share Posted January 10, 2017 I got Michael Bailey's book on ^6 Glazes from the library, and keep picking it up, read a few pages, then put it down and ponder. I'm now starting to understand why some of "our" conversations on this forum confused me, it's because we do get different "stuff" in the UK to the US. Also starting to think I have to buy some more ingredients. Then again as a pure "hobby potter" with no-one else around who is interested in ^6 firings, it takes forever to test, test, test. Link to comment Share on other sites More sharing options...
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