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AndreaB

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About AndreaB

  • Birthday 09/27/1962

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  • Location
    Johannesburg, South Africa
  • Interests
    Ceramics obsession

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  1. AndreaB

    2020

  2. Hi Andrea

    I'm test firing a kiln and I need your opinion.   Cone 6 in the ASD, cones 5,6 and 7 witness cones. One set on bottom shelf by peephole and one set top shelf by peephole.  Kiln set for high fire.  The safety timer knob set for 20 hours.  The kiln is empty because I'm test firing and I'm very new at this!!!

    So the kiln finished firing and cooled.  I open to collect the witness cones.  Top shelf cones are what they should look like for cones 5,6 and 7....I'm happy with that.  I remove the next 2 shelves for the next set and the witness cones are white and standing straight up???? Why would this happen??

    Nanc

    1. Denice

      Denice

      Is this a new or used kiln and what was your firing schedule?    Denice

    2. AndreaB

      AndreaB

      Hi Nancy,

      Sorry it's taken a while to see your post. I'm afraid I'm really the wrong person to be answering this question. You should put it to the forum. My kiln has a temperature difference between the lowest and the highest shelves and this factor is always the case.  This also happens with the way you load your kiln. Top heavy or bottom, biggest pieces in the middle or at the bottom, etc. Have you fired anything since? It may also help you to take a photo of the load prior to firing so you can see how your loading is affected with regard to the cones. Curious as to why you set your safety timer to 20hrs,  Hope you have fun with your new kiln. Andrea

  3. AndreaB

    Slab vase

    Slab stoneware vase with attachments and carvings. Sprayed underglaze
  4. Slab moulded porcelain bowl with red and white sprayed undgerglaze, platinum luster.
  5. So excited My first regional entry and one of my submissions has been chosen.

     

  6. Disappointed (with emphasis).  When you open the kiln excited to see vibrant colours on decals (12 pieces) and what you actually get is grey on white.:(

    1. Show previous comments  2 more
    2. Roberta12

      Roberta12

      Maybe my decals are different.  I fire them to 017  which is around 1300 F.  Are you working with degrees Centigrade?

      Good job on making lemonade out of lemons!  :D

    3. AndreaB

      AndreaB

      Yes I fire to cone 8 1260 Celcius.

    4. Roberta12

      Roberta12

      Maybe your decals are different than mine, but the 3rd firing I do for decals is at a much lower temp.  Perhaps that is why yours lost all their color?  I found Milestone decals to have a wealth of information about application and firing.  I think they also have some youtube videos.  

      Roberta

  7. No, I bisque first then airbrush, fire to bisque. Next comes the glaze (transparent). The decals are placed and fired to glaze temp. The luster is applied and fired tp 800 deg C. so in total 5 firings. The decal is a local South African plant called Stralitzia. Image attached. So happy with the response from everyone.
  8. AndreaB

    Air Brushed Pieces

    My first attempt at using a spray gun for the underglaze and the final glaze. All fired to 1260 C. Stoneware and Porcelain
  9. AndreaB

    Profile

  10. I've got Mudtools!!! And Xiem carving tools. If you don't live in Africa then you don't understand how exciting this is These type of tools are just not available over on this side of the planet

  11. Hi, I updated my gravatar just now and now I can't see anyone else's!! What did I do wrong? I don't like seeing empty spaces when I've grown used to seeing everyone

    1. dhPotter

      dhPotter

      Maybe close your browser then re-open.

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