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Everything posted by emma_19

  1. Thank you for all your helpful replies! Why does stoneware tend to be sticky and porcelain not so much?
  2. Hi All Just a quick question, doesn't really warrant a whole thread but didn't know where else to ask - I wanted to know if anyone has tried using silicone rolling pins for rolling out slabs? I don't know if the clay would stick to the silicone in which case I will stick to wood. Which is better in your experience? I know I could go out a buy one to test but just for convenience I wanted to ask here first. Thanks Emma
  3. Hi, I have seen a lovely duck egg blue glaze which breaks into brown patches where thin. The maker of the pot told me it is one glaze, not two layered glazes. I was wondering if anyone knows what kind of recipe/key ingredients I could be looking out for (cone 6) to give me similar effect? Thank you, Emma
  4. Hi does anyone have any links to good purple slip recipes? (rather than glaze) The tones I'm after...plums, crimsons, mauve, a whole range really. I love the colours in Kirstie van Noort's collection: https://instagram.com/p/0XbpqRIdMN/?taken-by=kirstievannoort I realise that stains are more reliable than oxides but I like the way oxides have an unpredictable quality and richness about them. I have crocus martis but found when used on it's own it's quite dark/brown tinged, does anyone know what I could add to make it more purple and in what percentages? I thought about adding cobalt car
  5. Hi, thanks, I realise they're different, I'm not using the magnesium, I was just stating that I've got both so I know I'm not getting them mixed up. I've got manganese carbonate and the recipe asks for manganese dioxide. So I was wondering if I could use the carbonate as a substitute for the dioxide?
  6. Thanks John for your reply.. I've actually got both manganese carbonate (light brown powder) and magnesium carbonate (white powder). any idea if I can substitute? Thanks Emma
  7. Hi, I'm making a glaze which requires 0.5% manganese dioxide, however I only have manganese carbonate. Is it possible to substitute the dioxide for the carb and if so, does anyone know what percentage carbonate I should add? Thank you
  8. Yes, I see what you mean, but I wanted to do lots of coats of colour and thought if I did it all at leather hard it would over saturate and deform the pot, as well as mix with the other colours underneath into one big mush. Can you use latex as a resist?
  9. Thanks for that. I will give it a go. Just wondering though, will it work on bisque ware? In the thread you only mention using it on leather hard clay.
  10. Thanks for your replies. My work isn't functional and I want a really dry surface, preferably translucent so you can see the colours layering up underneath. I've decided to try an egobe recipe as I have access to ingredients now and want to be able to use it on bisque ware. However, as I slab build and have a lot of off cuts, I want to use my own clay body to make it. (I'm using grogged porcelain: http://www.scarva.com/en/gb/Scarva-Grogged-Porcelain/m-67.aspx) When I'm looking at recipes, is there an element I can substitute for my own powdered clay? I've read that altering the amo
  11. Thanks for your responses and the link. I'm using Bath Potters high fire stains. Another thing I was wondering, if I used Underglaze Flux ( http://www.scarva.com/en/Scarva-Underglaze-Flux/m-2073.aspx ; add between 25-33% to make a powder stain into an underglaze) and added water, could I possibly make an underglaze which self-glazes when high fired? At the moment the underglazes I'm using (scarva nano) come out with a subtle gloss-sheen after high firings which I've been told is due to the flux in the underglaze. Many thanks
  12. Hi I'm fairly new to ceramics, so forgive if I seem a bit clueless. I am using commercial underglaze on porcelain but am finding the consistency a bit too watery and would like to experiment with a thicker mixture. Could I simply make a slip from dry powdered porcelain + water and mix this with the underglaze to thicken? I realise it would lighten the colour as the porcelain is white, I don't mind this. I'm just looking for a simple way of thickening the mix and adding some variation as I don't want to get too technical at this early stage by creating my own recipe with ball clay,
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