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04 06?
This question is probably simple with a simple answer. Perhaps it narrows
down to will it make a difference to the final product if I bisque porcelain at 06 (usually I do it to 04)? The reason for the question is that there is a terracotta piece already fired to 06. It has some glued wood attachments that I want to burn away. Firing to 04 would make it a darker red and a mismatch with several other pieces of a set. Perhaps the refiring to 06 will do that in itself. That is a question. I would like to make a mix-match bisque terracotta and porcelain at 06. The porcelain will later be glazed and fired to 6. Any thoughts, and thanks in advance, Marty anything to save a firing |
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#2
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"Martin J. Kenny" wrote in message ... This question is probably simple with a simple answer. Perhaps it narrows down to will it make a difference to the final product if I bisque porcelain at 06 (usually I do it to 04)? [It might absorb a bit more glaze, but nothing significant.] The reason for the question is that there is a terracotta piece already fired to 06. It has some glued wood attachments that I want to burn away. [Be careful with that. Some glues shouldn't be burned (especially polyurethane glues) because of the toxic smoke generated. Burning wood in your kiln can damage the elements, if your kiln is electric. Make sure the kiln is opened a crack when the smoke's coming out, to avoid a reduction atmosphere developing.] Firing to 04 would make it a darker red and a mismatch with several other pieces of a set. Perhaps the refiring to 06 will do that in itself. That is a question. [I doubt there's much difference in color between 04 and 06. Test this on a non-precious sample if you want to be sure.] I would like to make a mix-match bisque terracotta and porcelain at 06. [What do you mean by that? Bisque firing both types of clay in the same load shouldn't be a problem. But if you're combining both types of clay in the same piece, that probably won't work.] The porcelain will later be glazed and fired to 6. [6 is low for true porcelain to mature. You want at least cone 9, and 10 is better.] Any thoughts, and thanks in advance, Marty anything to save a firing [There are worse things than extra firings...] Andrew Werby www.unitedartworks.com |
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