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About vivk

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  1. vivk

    Photo Transfer

    Hi all If this thread is still going- gum arabic is used a lot in baking and sweet making so you could probably get it in baking stores or at your local chemist. I also watched Kristina's post which was great but she used ready mixed gum. We get it in powder form (here in Cape Town) but I dont know what proportions to mix it to get the best results. I tried .5oz in 45 ml and it was very thick, but the print did work. I dont know how it will fire though- we will see!
  2. Hi all Many thanks for all your input. On the strength of your answers I wont be wasting my time- was just interested in the idea!
  3. Hi all my local hardware store sells a product called Black Oxide which is used to colour cement. Has anyone tried this is a glaze recipe? I dont know the chemical formula as their product website does not give that information, only that it is derived from anthracite and coal. So I dont know if it can be used for glaze? Can anyone help?
  4. Hi out there. does anyone have a good recipe for a clear gloss glaze for white earthenware, firing to a max. of 1100 degrees centigrade. Many thanks for your help.
  5. Thanks for all the advice. Have given up on the phthalocyanine, but recently did a pit firing using copper sulphate (dissolved in pool acid!) and got some interesting results. So I will keep experimenting.
  6. Thanks Peter for your response. I did a test firing today and guess what- it burnt off as you said- completely bleached result.Oh well, I tried. I suspect this is the stuff they use in washing powder called "blue" or something like that- makes your whites whiter. Anyway I am still curious as to see what it does if I combine it with other oxides- grind it with say, iron oxide. It must be very volatile and if I could find a way of removing the water from the molecule other than using heat?? any chemists out there who can advise? Or just stick with good old cobalt!
  7. Hi all. I am quite new to ceramic glazing- still very much in the experimental stage, always looking for alternative pigments. I recently found in my local hardware store a blue oxide powder used to colour cement, It is an intense blue pigment which I think is copper phthalocyanine. has anyone out there used this pigment in a glaze. I would love to know as I am looking for another blue oxide other than cobalt oxide which is expensive. Look forward to some replies.
  8. vivk

    Aubergine Glaze Recipe

    Hi thanks for replying. can you get a purple from mixing cobalt oxide and Manganese dioxide?
  9. Hi all I am quite new to glazing and am looking for tried and true recipes. I particularly want a good aubergine gloss glaze which fires at cone 6 oxidation. I am using stoneware clay. Any suggestions welcome!
  10. Thanks so much- china clay is available here too, so I will give it a try. :)src="http://ceramicartsdaily.org/community/public/style_emoticons/default/smile.gif">
  11. Hi Marcia Many thanks for your suggestion- however I live in South Africa, so I use locally available clays. I am afraid I don't know what "Cornwall" is. I presume it is a local clay found in Cornwall? Also could you tell me what EPK is?
  12. Hi all I am new to this forum so feeling "newish". Would anyone like to share their recipe for a clear gloss glaze using potash and whiting? I used various percentages of these and had a bit of crazing. Should I add boron - google research suggest this as a solution to crazing. All ideas welcome. Many thanks!

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