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eoteceramics

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Everything posted by eoteceramics

  1. eoteceramics

    Help my slabs are cracking up

    Hi Denice, thanks for your help, The drying time here takes forever, its currently lashing rain!! I suppose I was putting them on that late stage to avoid deforming them when handling them. I will try a bit earlier. I probably do have a book however I find this site excellent for getting questions answered, so much Knowledge and experience. Julia
  2. eoteceramics

    Help my slabs are cracking up

    Thanks to everyone who has taken the trouble to help out with this. Im sort of self taught when it comes to the technical side of things which is why Im making mistakes. In response to your comments. JosephF I was always under the impression that air bubbles / trapped air causes explosions! thanks for the info that it doesnt. Min Yes your right I didnt score both sides, I'll take that on board, thank you. Tricetra Yes Ive heard of using silica for underneath, Would I spread it evenly under the whole slab or as little even piles? I thought it was preferable to allow the air /heat to circulate under the slab, which is why I was using broken kiln shelf pieces as support. Ill introduce pin holes through the slab where the thick pieces are, thank you. Marcia I dont believe the slab is that thick it about 4mm and then approx 8mm where the deco is attatched. Your drying method is interesting, do you have a photo of the sticks to give me an idea. I havent heard of the coils before but will try and see if my supplier has them. You havent heard of Scarva because they are my usual suppliers based in Northern Ireland. They make their own glazes etc, Im based in the South. Typically how long would everyone give a slab to dry 30 x30 cm, 8mm thick at its thickest but mostly 4mm thick. If I used Marcias method of drying on sticks and wrapped in plastic? I have a Nabetherm kiln, I usually keep to the programme as its always been fine before but Ill try and work out how to reprogramme to slow down the drying at the start. Thanks again Julia
  3. eoteceramics

    Help my slabs are cracking up

    HI all here is a photo of one of the pieces
  4. eoteceramics

    Help my slabs are cracking up

    Hi Marcia/ Neil, Maybe they are too thick? but not much thicker than the slab. its not possible to fix with glaze as theyre broken into pieces and stuck onto a different part of the slab. I attatched when leather hard by score and slip and its a proffesional Scarva slightly grogged clay. If I hollow out presumably I would then have to make a hole in the back to prevent them exploding. Ill try and get a phot up here although I thought I had attatche done via my phone. Julia
  5. eoteceramics

    Silica Sand For Use Under Slabs

    Hi, Thanks for all replies Perkolator, Marcia, etc I think you've just saved me a lot of time and hassle. Julia
  6. Hi, I have some large slab pieces approx. 12" x 12". In the past I have had problems when firing ie cracking and explosions. Would using silica sand help and how exactly do I use it? Thanks in advance, Julia
  7. eoteceramics

    Silica Sand For Use Under Slabs

    Hi, Thanks for replies, I'll follow your advice. But do you not get warping if fired on their side? Marcia, what coils do you use? and can they lean at an angle against the bricks? Thanks again. Julia
  8. Hi everyone, so Ive just opened the kiln and its not good. I had two large tile pieces which smaller pieces attached on by scoring , slipping wiggling and pressing down really well. Or so I thought the smaller 'attached' pieces have come away from the surface tile making them only fit for the ceramic grave yard. Ive made a piece similar before and Is been fine and the thing is I have three more pieces ready be fired. Can anyone shed any light as to why this is happening? Im certain they are dry and I took extra care in fixing them on, all help much appreciated. Julia
  9. eoteceramics

    Two Pieces Ruined, Help Needed

    Hi, thanks for going to all that trouble Yes its earthenware and cone 2. It does have a controller so I will attempt to reprogramme to your recommendations and see if its any better. Its hard not to peek but I'll go walk next doors dog ! Thanks again, Julia
  10. eoteceramics

    Two Pieces Ruined, Help Needed

    Thanks Min, Wow I really thought they were dry, I did the moisture test with my finger and they seemed ok, but I guess not I fire to 1140 °over approx. 12hrs about 100°an hour with a half hour soak. I don't open the door until its under 200°and even then just for a peek. I also never used to cover while drying as It takes so long anyway but will start doing this now. I have to confess these two pieces were left out in the rare sunshine for an hour or two just t speed it up so I suppose that didn't help matters.
  11. eoteceramics

    Two Pieces Ruined, Help Needed

    Hi, these are the pieces after I took them from the kiln. Pic 2 seems to have just cracked straight across with the attached pieces coming away from the surface. In the first one the piece has seemingly crumbled in one part as well as the smaller pieces coming away from the surface, very curious as to what has caused the crumbling. Any ideas very welcome. Julia
  12. eoteceramics

    Two Pieces Ruined, Help Needed

    Thanks for replies it was a bisque firing and yes gravity was on my side. Unfortunatley the pieces are broken and unable to glue with glaze. Marcia I might have a photo later. Julia
  13. Hi everyone, I accidentally fired earthenware clay to 1300°, oops. Its all stuck to the kiln bats and I need help in how to clean it all up. There is also one piece fused to a kiln brick. Its a big mess and a lot of work lost. I would really appreciate any help on this. thanks Julia
  14. Hhi everyone , I hope someone can help with this question. I am making pieces for the garden and so using stoneware and high bisque firing. However the glazes I want to use are firing around 1040, really bright colours. Will the fact that its an earthenware glaze on stoneware be a problem, ie will it fire to the correct colour? Thanks Julia
  15. eoteceramics

    Help With Oxide Colour

    Hi, Can any one tell me which oxide will give me a dark blue colour, I need this to pick out texture in a piece. Thanks, Julia
  16. eoteceramics

    Help With Oxide Colour

    Thanks for your replies, I have an electric kiln seancisse
  17. eoteceramics

    Amaco Chalks?

    Hi all, I hope someone can help with this. I came across some work by a potter who said she used chalks over slip to draw on bisque. I can't remember her name but her work was beautiful. Im trying o find these chalks myself, does anyone have any experience of using them and any other info about them. I have tried the crayons which were useless as was the pencils. I cant find them in my usual supplier (Ireland) or the UK. Thanks Julia
  18. eoteceramics

    Amaco Chalks?

    thanks for all your help everybody, I may try to make my own with the Mason stains although I hate the technical stuff. I found them in 'the big ceramic store' but unclear if they ship to Ireland .
  19. eoteceramics

    Mason Stains As A Wash

    Thanks for replies, I think some test pieces will have to be done!
  20. eoteceramics

    Mason Stains As A Wash

    Hi, I'm looking for some advice I want to add a bit more texture/ depth to my work. I wanted to pick out detail in a blue wash and wonder can I use mason stains to do this? I usually colour with slips, can I use these over the stain or will they obscure the stain. Thanks so much , Julia
  21. eoteceramics

    Flaking Ceramic

    Hi can anyone help with this problem I've had lately. After firing ,small pieces have been flaking off and beneath is a white powder like patch. Appreciate any theories. Photo attached. Thanks Julia
  22. eoteceramics

    Flaking Ceramic

    Thanks for replies, I don't think it could be plaster but it was pug milled clay so could have been contaminated with something, very frustrating
  23. eoteceramics

    Wall Pillows

    hi, does anyone have a link to how to make a wall pillow? Or could just tell me if easy enough 😊 thanks vm . Julia
  24. eoteceramics

    Porcelain , How Thin To Roll

    :Dthanks for all the help and advice, time to get rolling
  25. hi, I'm messing around with some porcelain and want to make some translucent tea light holders, How thin should I roll the clay? I'd say I have it about cereal packet thinness but will that be thin enough to allow the light shine through the embossed pattern😠help welcome, thanks , Julia
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