Jump to content

Search the Community

Showing results for tags 'GLAZE'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Ceramic Arts Daily Forums
    • Forum FAQ & Terms of Use
    • Studio Operations and Making Work
    • Clay and Glaze Chemistry
    • Equipment Use and Repair
    • Business, Marketing, and Accounting
    • Educational Approaches and Resources
    • Aesthetic Approaches and Philosophy
    • Int'l Ceramic Artists Network (ICAN) Operations and Benefits
    • Ceramic Events of Interest
    • Community Marketplace – Buy/Sell/Trade/Free

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests

Found 236 results

  1. Does anyone have a simple clear gloss recipe that you love for cone 6 ox suitable for clear and color? Simple, stable and preferably cheap. Same for matte surface. Prefer a soft satin matte, not too dry. Thanks!
  2. Can Barium carbonate be used in glazes for dishes?
  3. A friend of mine and I were having a discussion about my horsehair raku pottery and how much he liked my work. He told me he had his folks' ashes in cardboard boxes on a shelf in his garage and was wondering if I'd be interested in making a couple of horsehair Raku urns for him...incorporating some of the ashes in or on the finished piece. I can't see where or how I'd be able to put the ashes ON the finished piece but thought that it might be possible to incorporate the ashes into the clay body itself, either wedging the ash into the clay or possibly pressing the ashes into the surface of the wet jars before drying and firing the pieces. On another tack, he was wondering if it would be possible to mix some of the ashes into a glaze and firing the pieces that way. Since ash glazes tend to run when fired, he suggested glazing the bottom of the pots and firing them upside down so the drips would run UP the pot when sitting right side up. (This suggestion is something I plan to experiment with in my regular pottery work...) I don't have enough experience with clay and glaze chemistry to even have an idea of how to go about this and would appreciate any suggestions that might help with this project. In the research that I've started I found that the basic composition of human ash is as follows with the percentages of the primary components. Anything below .01% is not included: Phosphate 47.5% Calcium 25.3% Sulfate (Sulphate) 11.00% Potassium 3.69% Sodium 1.12% Chloride 1.00% Silica 0.9% Aluminum Oxide 0.72% Magnesium 0.418% Thanks, JohnnyK
  4. Hi! I’ve recently been doing a lot of experiments with clay deposits I’ve found as well as other found materials used in clay or glazed. I’ve been doing a lot of testing with wedging a lot of coarse granite into my clay. It makes it rough to throw with but my hands are tough enough it doesn’t bother me. I’ve usually been applying a found quartz and wood ash glaze that I’ve formulated to these pieces at cone 6 (lots of GB). The glaze gives a nice amber finish and seems to be helping the granite flux as it runs a bit giving nice variation, colour, and texture. My current test are going to include wedging the granite into a clay I found that can be fired up to cone 6 and I’m excited for these results. Does anyone have any tips regarding granite being added to clay, good glaze combos with found rough granite filled textures, other good experiments with found materials, etc?? Thanks! Matt
  5. I'm in a bit of a quandary regarding saggar firing. I'd really love to try it, but here's the thing. From what I've read on internet saggar can't be used on functional ware. I've thrown a tall lidded pot and a bud vase/oil holder and I think they both would look really great with the effects of saggar. My question is - having been thrown in stoneware, bisqued to 960 deg C, how would glazing on the inside be affected by saggar firing. I know if I leave unglazed the pot can be used to store spaghetti etc ie. non porous items but the oil pot would not be food safe. If I glaze with earthenware glaze and fire to about 1100 (electric kiln) what's the possibility of the saggar affecting the inside? (my idea is to glaze and saggar fire at the same time) Or should I glaze fire with stoneware glaze to 1200 first? Any help would be much appreciated. Thanks
  6. Can a glaze expert answer this? What are the crystals in those commercial glazes? I want to experiment with my own, but I don't know where to begin. After rinsing the crystals in the commercial glazes, they appear to be broken glass, but surely that's not it. Can someone illuminate this for me? I'm a novice at making my own glazes... Thank you!
  7. Hello, I’m new to ceramics and have been working with some mid-fire porcelain clay as well as white earthenware clay. I made several hundred small jewellery pieces from both clays and had them bisque fired at a local kiln service. Unfortunately they combined all my work together and now I don’t know which is porcelain and which is white earthenware, soI don’t know which clear glaze to use on which piece. Might anyone be able to give me some advice about what I could do? Are these pieces salvagable or bound for the bin?
  8. I have just started making my own glazes, I purchased the raw materials and I used my friend’s hood in her lab to mix up some of the glazes. I have bisqued pieces and the first coat of the glaze went on easily, BUT when I went to apply the the second coat it dried almost as quickly as the brush touched the pot, making it nearly impossible to apply a second coat. It was as if the glaze crystalized upon touching like in a supersaturated solution, but the glaze was well mixed and not supersaturated. This was with “Tin Foil II” and “MFE Turnidge”. I did not wait long between coats… Any ideas would be appreciated.
  9. Hi everyone! I just recently bought a used Cress FX27P electric kiln so I can start firing work at home. So I just recently started my first bisque firing yesterday at 4pm. It was more of a test fire, so I didn't put a lot of work in there, about 15 wheel thrown pieces. There were a couple pieces in there that were not fully bone dry so I set the firing speed at E, the slowest speed. I also put a pyrometric cone (04) in the sitter, 1 peep hole open, and set the thumb wheel to 1, and I set the timer to 16 hours so it can shut off at that time in case anything goes wrong. Throughout the day and night I checked periodically, and the kiln did get red hot, so the elements seemed fine to me, but I didn't take a look at the thumbwheel. So this morning I went to go check on the kiln, and it fired the full 16 hours! and the kiln sitter didn't go off, so the the kiln didn't reach cone 04 temp. Also, the thumbwheel stayed at 1! It didn't move! So I'm thinking the thumbwheel is broken or needs repair, I didn't put the cone in right, or something is wrong with the elements. And even 16 plus hours later the kiln was still showing orange to red heat signatures inside the peep hole. So I talked to my friend who has experience firing kilns, and he said to just fire the thing until the kiln sitter shuts off and set the thumbwheel to 10 max temp as soon as possible so the kiln doesn't have to reheat back to 1000 for the sake of energy efficiency. If anyone has any ideas, input, advice, or suggestions I'd greatly appreciate it! I'm hoping to bisque fire and glaze fire using this kiln in the near future, I already bought a couple pints of cone 6 glazes to test out. Thanks!
  10. Hello all, Looking for firing schedules. I have a small manual electric kiln with a kiln sitter and wondering if anyone has a simple, clear firing schedule they follow and could share? I am a beginner trying to learn how to fire for Cone 04 Bisque and then another schedule for Cone 6 Glaze Fire. I am using buff stoneware. Any firing tips appreciated! Thanks so much, Natalie
  11. I have 3 cups that I over-glazed and almost got stuck to the kiln . I was wondering if there was any way I could get it off some of the excess post-firing. Can I rub some of it off with sandpaper? Any suggestions?
  12. Hello, is anyone working in Seoul Korea? I'm trying to speed up my work process but due to lack of resources here in Seoul, it's really hard to find alternative chemicals and glazes to buy here. Could anybody living in Seoul share some tips and helpful information...? (I'm korean but lived and studied ceramics in the States! ) Thank you!
  13. I'm looking for help with a recent glaze issue. I've been using the same clay and white glaze for a couple of years. Now, all of a sudden, I'm getting tiny black specks in the glaze, and it's ruining the clean look I'm trying to achieve. I've used different batches of my perfered clay and glaze, installed new elements, throughly vacuumed the kiln, kept my bisqueware clean. I don't know what else to do to, and don't know what's causing the black specks. Does anyone have any insight on this issue?
  14. I really like this light blue glaze and looking to make something similar. Has anyone seen a similar glaze? What are some good glaze sellers in Europe?
  15. Hi! My previous studio had a beautiful cone 6 glaze called Blue Hares, I'm trying to purchase it since my new studio doesn't have it but all I'm finding is how to mix it yourself. Anyone know if it's possible to buy it online and if so where? Thanks!
  16. Hello, I just unloaded a kiln load and noticed a substantial amount of pinging. My kiln is pretty much brand new (firing #3) and it reached cone 6. The pots are not crazed and hold water perfectly. The glaze seems to "fit" the clay and I see no glaze peeling. I have used both clay and glaze together before with no issues. I cracked the kiln around 300 F and opened it at 250 F. Hopefully, I can get an explanation.
  17. Hi guys! Seeking some help on a project I’ve been working on for a while. To not get too in depth, I’ve been replicating this antique teapot, and need some advice on getting the finish/color right. I’ve struggled and struggled trying to find the right glaze to match, and then I had an epiphany that the orange is NOT a glaze but rather some sort of paint. There’s a definite texture change between the clear glazed areas and the orange. Also, the orange is kind of a satin finish. Does anyone have a clue what type of paint this would be, or what would replicate it? It sort of reminds me of the finish of vintage Pyrex bowls. This line was produced in the 1940s. I’m guessing they glazed all of the pieces clear, and then painted on some sort of coating afterwards to maybe save money. Anyway, any help would be hugely appreciated! Thanks! Jared
  18. hi everyone. i'm Sima from Iran. i'm a beginner. i learned the basics of the glazes. but in here the common kilns the max temp is 1080 C degrees and we don't use cones. i want these effects as i see in every foreign pages and i really appreciate it if anyone could help me to find these glaze recipes that i could use in this temp? and in the bracelet i want the speckles. the dark spots in the glaze. how can i achieve that? thank you. peace Sima
  19. Hi I would like to do a “ one firing “ of AB porcelain slab ( btw....so far so good with previous tips used for drying and warpage thank you ALL again ) Ive mixed black stain with same clay body And drawn a square on slab My question is could I still fire “ one firing “ with a brush on glaze just on the black square Hope this makes ( some ) sense ? kind regards nicky
  20. Any one used the above glaze. It has an addition of 10 rutile in it which seems a lot. Custer Feld 43 Gerstley bor 18 Kaolin 5 Whiting 2 Dolomite. 6 Silica. 18 Zinc oxide. 8 + Rutile 10
  21. Hello, I mostly do sculptural work but occasionally make flat wall pieces out of slabs. They are usually 10 x 10. I have had a couple of these pieces crack in two during glaze firing. I use a low fire clay with compatible glazes and fire them flat on the shelf. I have had suggestions to use alumina but was wondering if I stood them up in the kiln or if using kiln stilts would help? Thoughts? Thank you!!!
  22. Wanted to ask you guys about your experience with this defect we've been having. It's not glaze specific and I highly doubt these growths are just bubbling up from the clay during a glaze firing (but maybe). This defect does not occur only on mugs that are close to the thermocouple, but I don't want to rule out the possibility that it is thermocouple related. Ring any bells?
  23. Someone at the ceramic supply store I've been going to recently mentioned to me that it's possible to do a sort of underpainting with cobalt carbonate mixed with water. (I think...she may have said a different binder, but I'm pretty sure it was water.) I've tried researching it a little and can't seem to find anything on the internet about it or how to do it. Can you paint unfired clay with the cobalt-water mixture before you bisque it? Do you paint it on bisqueware and fire separately before glazing over top? Do you paint it on bisqueware and apply the glaze directly over the top? Would love to know if anyone has tried this and how you did it! Thanks
  24. If I could figure out how to attach the correct size photo you could see the what I’m gonna describe... Duncan Clear Satin (SN351) glaze is not running into all the incised lines after the recommended number of coats and fired to cone 06.. It looked completely covered. This has now happened a couple of times and I’m not sure what’s going wrong. The clay is Standard 528. The design was inscised then bisque fired to 06. It was then stained using Amaco velvet underglaze (V361)...allowed to dry before applying the Duncan clear glaze as per mfg. I’ve used this technique for a long time with other clay bodies and this never happens, no problems. Any idea what’s going on? Is it the clay? The glaze? My technique? The firing? I could use some help. (And how to upload the right kind and size image).
  25. Hi there, I'm new on this forum and quite new to ceramics and glazes in general so please excuse my lack of knowledge... I've been making ash glazes using this Katherine Pleydell-Bouverie nuka glaze recipe; Mixed woodash 33.0 Feldspar 33.0 Kaolin 16.5 Ball Clay 16.5 On a recent trip to China I aquired some rice straw ash and I was really excited to turn this into a glaze. From what I read rice straw ash should be very high in silica too like other (mixed) wood ashes so I used the same recipe. The results came out rather different then expected or other wood ash based glazes I made using the same recipe. It looks like the glaze didn't melt or run at all. Please see photos for your reference. It seems like there is a lack of silica and fluxed present in the glaze. I want to do some line testing by adding silica in 10% increments and another one adding flux like gersley borate but perhaps somebody here sees something I'm missing or has other ideas. The other thing that could be possible is that I misunderstood in China and I've acquired rice HULL ash instead of rice straw ash. I'm firing in an electric kiln on 1240 degrees and have gotton desirible effects with mixed wood ash glazes based on the same recipe and firing. Thank you for any suggestions or advice.
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.