I am interest in knowing if anybody has done this. I'm thinking of pit firing some 06 bisqued pots, glazing with cone 6 clear and then firing to cone 6.  I am using B mix and Soldate 60 Laguna Clay mixed together. Is this possible and/or practical? Thanks in advance for any advice.

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You would lose all the smoke blackening, and if you used copper or iron to get colors, they would be modified by the glaze. If you are just looking for a bisque, then this would be one way to do it.

Thanks for the reply. I don't want to lose the patterns from the pit firing so this plan of action isn't going to work! Back to the drawing board...

Wondering why you want to refire the pit fired pots to cone 6. Do you want to vitrify them? You could seal them with tile sealant to make them water proof although I doubt they would be food safe.


Scott Shaffer said:

Thanks for the reply. I don't want to lose the patterns from the pit firing so this plan of action isn't going to work! Back to the drawing board...

I am working on making bonsai pots and really like the patterns/colors I get with pit firing. I do want to make them water proof and safe for the bonsai trees. I don't want stuff leaching into the trees and I figured that firing to cone 6 with a clear glaze would accomplish this. 

I really love the pit fired patterns as well. My profile picture is a pot I barrel fired and got an amazing blue color, don't know how! I have used plastic liners and planted into barrel fired pots with success. No leaking when watered and the plant is doing great. Another option may be to burnish the pot before bisque firing &/or coating with t-sig, both which help seal the surface. Good luck and let us know how you make out.

Scott Shaffer said:

I am working on making bonsai pots and really like the patterns/colors I get with pit firing. I do want to make them water proof and safe for the bonsai trees. I don't want stuff leaching into the trees and I figured that firing to cone 6 with a clear glaze would accomplish this. 

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