marjr
New Member
Posts: 4
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Post by marjr on Aug 16, 2017 19:21:42 GMT -6
Hi, i am from Australia and only just joined the Forum. I am only new to crystal glazing, and very interested in having a go. could I please get some advise on how many coats of coloured porcelain slip I need to brush on for a stoneware clay base. Any advise would be appreciated. Thank you Marj
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timhanrahan
New Member
Still growing crystals!
Posts: 22
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Post by timhanrahan on Mar 25, 2018 16:29:53 GMT -6
Hello Marjr,
Surprised that no one has replied and even though it is dated and your testing may have answered your question, here is my opinion.
The key is finding a compatible porcelain that won't flake or crack due to different shrinking properties from the stoneware. Given that it will stick, I would ensure that the stoneware is completely covered, so one good coat or several thinner coats. The crystal glaze does not not flow as well on a rough surface, though, I make my pedestals with stoneware and crystals will form on them. You will also likely get some influence from the stoneware elements, especially iron. I have done this numerous times and the crystals are not a nice as directly on porcelain, but interesting nonetheless.
Tim
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marjr
New Member
Posts: 4
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Post by marjr on Mar 25, 2018 17:36:14 GMT -6
Hello Marjr, Surprised that no one has replied and even though it is dated and your testing may have answered your question, here is my opinion. The key is finding a compatible porcelain that won't flake or crack due to different shrinking properties from the stoneware. Given that it will stick, I would ensure that the stoneware is completely covered, so one good coat or several thinner coats. The crystal glaze does not not flow as well on a rough surface, though, I make my pedestals with stoneware and crystals will form on them. You will also likely get some influence from the stoneware elements, especially iron. I have done this numerous times and the crystals are not a nice as directly on porcelain, but interesting nonetheless. Tim Thank you Tim for your advice, very much appreciated. I have made some pieces using porcelain slip and will be doing a crystal firing in the next week, hoping it will work out. I will keep you updated. |
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