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Lab talk, the good, the bad, and the ugly
Porcelain
Mixing porcelain powder with water? (not modeling liq)
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<blockquote data-quote="Tom Moore" data-source="post: 57069" data-attributes="member: 1247"><p>I dry stacked and always used distilled water. My thoughts were if you don't add stuff to the porcelain with the wetting liquid the less chance for color deviation. </p><p></p><p>The only special liquid I used was home made with distilled water and about 10% fast burnout investment liquid for shoulder powders. It makes the porcelain set much harder and easier to remove when you are doing a bridge with more than one porcelain margin. I had to slow the fire rate to about 75 degrees a minute to make sure to burn out the burnout liquid before vitrification started. If you fire this to fast you will get some graying.</p></blockquote><p></p>
[QUOTE="Tom Moore, post: 57069, member: 1247"] I dry stacked and always used distilled water. My thoughts were if you don't add stuff to the porcelain with the wetting liquid the less chance for color deviation. The only special liquid I used was home made with distilled water and about 10% fast burnout investment liquid for shoulder powders. It makes the porcelain set much harder and easier to remove when you are doing a bridge with more than one porcelain margin. I had to slow the fire rate to about 75 degrees a minute to make sure to burn out the burnout liquid before vitrification started. If you fire this to fast you will get some graying. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Porcelain
Mixing porcelain powder with water? (not modeling liq)
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