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Blue Bisque For Smoke Firing


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#1 putneyal

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Posted 03 May 2010 - 10:45 AM

My bisque ware which I subsequently smoke fire is naturally not fired higher than 950C. I have been trying to attain an ultramarine blue which would contrast nicely with the deep black of the smoke firing. But because of the low temperature, I find that using a cobalt slip does not fully develop the colour. Does anyone have any idea how I could achieve a deeper blue slip?

#2 Chris Campbell

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Posted 03 May 2010 - 11:27 AM

You could try mason stains or underglazes.

Chris Campbell
Contemporary Fine Colored Porcelain
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#3 putneyal

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Posted 03 May 2010 - 01:46 PM

You could try mason stains or underglazes.


Thanks Chris. I must admit that I have never tried mason stains, but that might well be the way to go. Presumably I could add them to a slip in the usual way?




#4 Chris Campbell

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Posted 03 May 2010 - 04:53 PM

Visit the mason website, look at the color charts and select stain that is recommended for use in a clay body.
The blues I have used get darker the higher they are fired. Your base clay color for the slip should be very white.
I just mix clay, water and stain in my studio blender ... but I am sure others have actual recipes.

Chris Campbell
Contemporary Fine Colored Porcelain
http://www.ccpottery.com/

https://www.facebook...88317932?ref=hl

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