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Lab talk, the good, the bad, and the ugly
Porcelain
eMax Ceram on Zirconia - trapped gases
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<blockquote data-quote="Patrick Coon" data-source="post: 264250" data-attributes="member: 11366"><p>I would also check the quality of the vacuum to make sure they are pulling as required. With that check your vacuum hoses, as they can become worn over time and collapse during the vacuum draw, not allowing for vacuum to form in the chamber as needed.</p><p></p><p>I've also attached the two stage parameters for firing e.max Ceram. Use this for all dentin incisal firings, including any Wash firings you do. Normal firings for Zirliner, stains and glaze. This program was developed to help with the surface porosity some people saw (kind of like yours). </p><p></p><p>Remember, with low fusing porcelain like e.max Ceram, a rough first firing is normal. After smoothing and shaping the first fire, any additions and subsequent firings will be much smoother.</p><p></p><p>Not sure if we've talked, Devon, but give me a call if you want. My number is below.</p></blockquote><p></p>
[QUOTE="Patrick Coon, post: 264250, member: 11366"] I would also check the quality of the vacuum to make sure they are pulling as required. With that check your vacuum hoses, as they can become worn over time and collapse during the vacuum draw, not allowing for vacuum to form in the chamber as needed. I've also attached the two stage parameters for firing e.max Ceram. Use this for all dentin incisal firings, including any Wash firings you do. Normal firings for Zirliner, stains and glaze. This program was developed to help with the surface porosity some people saw (kind of like yours). Remember, with low fusing porcelain like e.max Ceram, a rough first firing is normal. After smoothing and shaping the first fire, any additions and subsequent firings will be much smoother. Not sure if we've talked, Devon, but give me a call if you want. My number is below. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Porcelain
eMax Ceram on Zirconia - trapped gases
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