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Posts posted by annacondagh

  1. I am a novice and want to start mixing my own glazes.  I am starting simple ie mixing stains with transparent glazes so its a simple enough process so far. I do however have copper carbonate and colbalt carbonate. My understanding is the colbalt carbonate if added in a 2 - 5% mix will make a straightforward blue. But what of the copper carbonate can I add that to a transparent glaze without any other additives to make a glaze? I understand food safe issues but its not relevant for what I want to do. 



  2. Sputty thanks for that the Potters Connection looks promising postage wise, and I will contact them about actual postage rates i have ordered from UK before, the issue always seems to be those who stock the cones I want charge excessive amounts for postage, last time I bought a box of cones from a company it was an ordeal. This tiny light box cost me £15 to ship and took 3 and half weeks to deliver. I worked out had this same company sent this box to Australia and someone in Aus sent it back to me it would have been cheaper and faster. My problem is I live in the north so I don,t get the standard European rates rather the excessive islands highlands and NI rates.  thanks Sputty

  3. Old lady lovely offer but I live in Ireland.

    Neil I have difficulty with mini cones too.  Thanks for the extra info, good to know I can speed the process I will try that this weekend and I will leave the top vent open.

    I am a novice and this website is my teacher, thanks to all for that.


  4. I have the exact same kiln. I start with the kiln on 1 for 3 hours ramp it up to 3 for another 3 hours then put it on full until the kiln sitter kicks in. For 06 bisque firing it takes around 7 -9 hours (exterior temp dependent) and for cone 7 it takes about 10 -12 hours. I leave the peep hole and vent open in both firings until there is no steam coming from the peep hole, use a mirror to check this. Then I plug the holes and leave them in until I open the kiln about 20 hours after it has switched off. My biggest issue is getting a supply of of mini bars to operate the sitter.

  5. Hi

    I am new to pottery i started throwing on a kick wheel in Jan and love it, i have a small manual kiln that operates on a kiln sitter and i was using stone ware and stone ware glazes but I want to change to earthenware as my kiln struggles with the higher temps. Here's my problem, the earthenware clay both white and terracotta I can get tends to have a maturing temperature of 1080 to 1160, the glazes for earthen ware tend to be between 1040 and 1060. I don't have the knowledge or experience yet to make my own glazes so I buy ready made brush on. So do I bisque to the higher clay temp and then glaze at lower temp and if I do this does the bisque ware easily soak the glaze. Many thanks fo any help you can give me, there is much to learn.


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