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JessHobbyPotter

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Everything posted by JessHobbyPotter

  1. Ugh. So I will get the hang of it a year or so after death. ; )
  2. Yep, I wet it... but the glaze was home made. Next time I will be using a mix of glycerine and water to create the glaze to aid brushability. Also, Glazenerd suggested adding some bentonite.
  3. So, I like the crazing, but I can show you how thick. I have been taking pictures of every step. Note that the glaze is not brushing well. I will be increasing the amount of glycerine in the future to address this.
  4. So... I am a certified chemistry teacher, and I have access to a hood at the university where I now work. BUT, I respect that I have a lot more to learn about the basics before I start with anything like that. : )
  5. Here is my favorites from the second kiln, same glaze as my favorite from kiln 1.
  6. dud 1: first time it was Shimbo's Tin Foil II base glaze with no colorants. This time I added cobalt 008 on the rim and Turnidge MFE with no colorants... just the cobalt on the rim. dud 2: first was Shimbo's Tin Foil II base glaze with CuCo3. This time I added Turnidge MFE with no colorants.
  7. Kiln 2 with a different schedule (unfortunately before I saw Glazenerd's advice about reducing the temp in the first schedule a bit). First, here are the 2 duds from before. I added more glaze and refired. The third is my favorite glaze from last time on white clay instead of brown. Apparently this will be three separate replies. Sigh.
  8. I am thinking about re-firing the pieces i don't like... you know, since i don't like them. I have been reading and suspect that the ones that didn't grow macro crystals may have needed a longer soak. I also want to go back to my pictures and see if they all happened to be on the same shelf or the same side of the kiln. Maybe add another layer of glaze at the top to see if i can get something interesting to happen. Below are two of the "dud"s.
  9. Thank you to everyone who has been so helpful so far. I programmed my first kiln with a schedule I modified from the Plainsman Schedule I found online and combined with William Schram's. They were really close and so I considered that 2 votes in its favor. I had 11 pieces in the kiln, and three different base glazes (A Version of Snair's Metallic macro crystal, Tin Foil II, and Turnidge MFE) and within that there were color variations with (NiCo3, CuCO3, MnO2+CoO, TiO2+CoO+MnO2, NiCO3+CoO+CuCO3) About 1/2 grew macro crystals, and 1/2 came out matte. My favorite was the Turnidge MFE +TiO2+CoO+MnO2 (I hoped it would be purple on tan, but it was mode periwinkle with tan and a dark indigo pool) . I love the variety of the crystal shapes, but I expected rings from the ions and holds in the firing schedule. I have to read more on that. and the Turnidge MFE + NiCO3+CoO+CuCO3 which i thought would be blue on green, and it kinda was. The brown clay is just what was there. I will try these again with white clay. I have only attached pictures of my two favorites. I can put pictures of the duds too... but right now i am happy that I got 2 that I really like.
  10. I didn't. today I tried adding a little (1/2 tsp, 7ml) of a saturated MgSO4*7H2O (epsom salts) solution. That improved the consistency of the glazes, but not the brush-ability. Which of the CMC gum, flotrol or glycerine do you recommend? I don't have any of them, so any will be an additional purchase.
  11. Will the copper carbonate add Cu ions to the glaze and affect the color? It seems like it will. Is there a preservative you recommend that doesn't have transition metals?
  12. I am relatively new to ceramic arts as a whole and VERY new to making my own glazes.

    flower bowl pink.jpg

    porcelain plate.jpg

    1. oldlady

      oldlady

      welcome, jess.   looks like nice work so why not put this in the forum section  studio operation and  making work? 

    2. JessHobbyPotter

      JessHobbyPotter

      oh!  I guess because I am new to the site and don't know much about how it works...  

       

    3. oldlady

      oldlady

      that's OK, i have been on here for 9 years and still do not know anything about it.

  13. 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.
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