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Old 2006-02-17, 9:22am
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Join Date: Jul 05, 2005
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I've found that striking boro purples that aren't encased will strike darker in the kiln, even at 1050. If it's encased, it doesn't seem to change much. The same goes for most other striking colors, too - they always go darker for me if they are on the surface and not encased. I always anneal at 1050 as well, and for about the same period of time as you, and it happens to me every time. I'm not sure what can be done to avoid this besides completely encasing everything. Of course, I only have a couple of years of off and on experience with boro, so I'm certainly no authority on the subject.
Sarah
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