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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Zubler updates...
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<blockquote data-quote="Ron.Ferland" data-source="post: 88569" data-attributes="member: 9208"><p>I used to get that low value spot too. It's more to do with flow dynamics of the material and less on the oven I bet. the way I understand it, the crystals line up in the sprue and need to flow around the abutment, not directly into an axial wall. If it does, the cystals cannot tumble and what you are looking at after removing the sprue is a cross section of a bunch of lined up crystals. I saw this at the great New York meeting at an emax program. Regarding glaze, I get a good glaze with one coat, always have. BTW, did you use an ivoclar furnace before the zubler? Just curious due to the shade change you noted.</p></blockquote><p></p>
[QUOTE="Ron.Ferland, post: 88569, member: 9208"] I used to get that low value spot too. It's more to do with flow dynamics of the material and less on the oven I bet. the way I understand it, the crystals line up in the sprue and need to flow around the abutment, not directly into an axial wall. If it does, the cystals cannot tumble and what you are looking at after removing the sprue is a cross section of a bunch of lined up crystals. I saw this at the great New York meeting at an emax program. Regarding glaze, I get a good glaze with one coat, always have. BTW, did you use an ivoclar furnace before the zubler? Just curious due to the shade change you noted. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Zubler updates...
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