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Everything posted by Sarcasticcrab

  1. Sorry I should clarify - The pieces have already been glaze fired, not just glazed.
  2. Hello, I am firing for someone who has applied decals over the top of a glazed piece, and I was wondering whether it would be ok to stack the pieces in the kiln in order to minimise the amount of firings? Would the transfers rub off onto other pieces or would it be ok?
  3. Thanks CactusPots. What do you mould on your hump moulds? I am trying to mould mugs and I imagine that cling wrap leaves marks where it creases and folds over itself. If I was moulding something like a plate or a bowl, I could see this working really well.
  4. Thanks, Pres, you have given me an idea - I will make plaster moulds of plastic cups, and then use another plastic cup as a sleeve that can sit between the mould and the clay. I will get back to you on how it goes.
  5. Has anyone used a sheet of plastic, that has been vacuum formed to the shape of a plaster mould, as a way of quickly removing clay that has been pressed into it? Im keen to find alternative ways of releasing the clay quickly on my homemade ram press. I live in the UK and sourcing the materials to make an air release mould is very pricey and difficult. If anyone knows whether the idea above would work or has an alternative suggestion, I would really appreciate the help!
  6. Thank you both, that is very helpful! Min, I have found a clay online with 19.2% Al2O3 and 1.8% CaO (The clay i used above is 24.7% Al2O3 and 0.19% CaO). Do you think its worth buying some and giving it a go with the stains I have? I will also look for cadmium inclusion stains and alumina pink stains, but I live in the UK, where there doesn’t seem to be a huge range of options. (Only limited Mason stains are available)
  7. Hey all, I have been experimenting with different ceramic stains in the bodies of clay but have really struggled to achieve any of the warm colours. I have read that chromium tin stains require a high concentration of calcium so have added CaCO3 to my samples. You can begin to see some of the purples coming through in some of them. Should i go even higher than 12%? I have also read that clay bodies should have low alumina. The clay body i have been using has 24.7% Al2O3, is this too high? Please see the images of my samples and the stain compositions at the link below: https://imgur.com/a/b6ySVAa
  8. Hi all, Hi I have been making samples using Scarva Nano Mason Stains (https://www.scarva.com/en/gb/Nano-Leadfree-Glaze-and-Body-Stains/c-51.aspx) to colour the clay body of the Scarva PF700 Stoneware(https://www.scarva.com/en/gb/Scarva-Earthstone-Professional-PF700-Porcelain-White-Stoneware/m-43.aspx). I am firing to cone 8 (1250c) with a soak of 30mins but as you can see in the attached photo the warm colours are not coming through at all. The cool colours are reasonably close to the colours advertised but still off. Can you please advise whether I am doing anything wrong to cause this? https://imgur.com/a/lGBUh9W
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